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ESIE03–01 Error Codes: Indoor Units

Part 3 – Troubleshooting 3–25

Part 3

2 Error Codes: Indoor Units

2.1 What Is in This Chapter?

Introduction In the first stage of the troubleshooting sequence, it is important to correctly interpret the error code on

the remote controller display. The error code helps you to find the cause of the problem.

Shutdown For some errors, the system only shuts down when the error occurs several times. This means that

you have to wait until the system shuts down to be able to see the flashing LED on the front panel and

the error code on the remote controller.

Overview This chapter contains the following topics:

Topic See page

2.2–Malfunctioning Indoor PCB (A1) 3–26

2.3–Malfunctioning Drain Water Level System (A3) 3–27

2.4–Indoor Unit Fan Motor Lock (A6) 3–29

2.5–Malfunctioning Drain System (AF) 3–31

2.6–Malfunctioning Capacity Setting (AJ) 3–32

2.7–Thermistor Abnormality (C4 or C9) 3–34

2.8–Malfunctioning Remote Controller Air Thermistor (CJ) 3–36

Summary of content (180 pages)

PAGE 1
ESIE03–01 Error Codes: Indoor Units Part 3 2 Error Codes: Indoor Units 2.1 What Is in This Chapter? Introduction In the first stage of the troubleshooting sequence, it is important to correctly interpret the error code on the remote controller display. The error code helps you to find the cause of the problem. Shutdown For some errors, the system only shuts down when the error occurs several times.
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Error Codes: Indoor Units 1 2.2 ESIE03–01 Malfunctioning Indoor PCB (A1) Error code A1 LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) c c c w c x w — x — Normal 33 4 5 Malfunctioning Error generation The error is generated when the data from the EEPROM is not received correctly. EEPROM (Electrically Erasable Programmable Read Only Memory): A memory chip that holds its content without power.
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ESIE03–01 2.3 Error Codes: Indoor Units Malfunctioning Drain Water Level System (A3) Error code A3 LED indications The table below shows the LED indications. Operation 1 HAP (green) HBP (green) Normal c c Malfunctioning c c Error generation The error is generated when the water level reaches its upper limit and when the float switch turns OFF.
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Error Codes: Indoor Units 1 Troubleshooting ESIE03–01 To troubleshoot, proceed as follows: Begin Is the unit a cassette or built-in type? Is the optional drain raising mechanism connected? No No Is the short-circuit connector connected to X15A on the indoor unit PCB? Yes Yes Yes 33 Connect the Short-circuit connector. No Check the continuity of the short-circuit connector. Yes Is a drain pump connected to the indoor unit PCB? No Connect the drain pump.
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ESIE03–01 2.4 Error Codes: Indoor Units Indoor Unit Fan Motor Lock (A6) 1 Error code A6 LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) Normal c c Malfunctioning c c Error generation The error is generated when the fan rotations are not detected while the output voltage to the fan is at its maximum.
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Error Codes: Indoor Units 1 Troubleshooting ESIE03–01 To troubleshoot, proceed as follows: Check the connections of X20A and X26A. Are X20A and X26A properly connected? No Connect X20A and X26A correctly. Yes 33 Unplug X26A and switch the power supply on. 4 Check the voltage between pins 1 and 3 of X26A. 5 Is there about 12 VDC? No Replace indoor unit PCB. Yes Check indoor unit fan motor and motor wiring.
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ESIE03–01 2.5 Error Codes: Indoor Units Malfunctioning Drain System (AF) 1 Error code AF LED indications The table below shows the LED indications. Operation HAP (green) HBP (green) Normal c c Malfunctioning c c Error generation The error is generated when the float switch changes from ON to OFF while the compressor is OFF. Causes The possible causes are: Troubleshooting P Error in the drain pipe installation P Malfunctioning float switch P Malfunctioning indoor unit PCB.
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Error Codes: Indoor Units 1 2.6 ESIE03–01 Malfunctioning Capacity Setting (AJ) Error code AJ LED indications The table below shows the LED indications. Operation 33 Error generation HBP (green) Normal c c Malfunctioning c c The error is generated when the following conditions are fulfilled: 4 5 HAP (green) Condition Description 1 P The unit is in operation. P The PCB’s memory IC does not contain the capacity code. P The capacity setting adapter is not connected.
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ESIE03–01 Troubleshooting Error Codes: Indoor Units 1 To troubleshoot, proceed as follows: Check if the capacity setting adapter is plugged into X23A of the indoor PCB. Is the capacity setting adapter plugged into X23A of the indoor unit PCB? No Plug a capacitor setting adapter that matches the capacity of the unit into X23A. 3 Yes Switch the power supply off and back on again. Is AJ displayed on the remote controller? No 4 The malfunction was caused by a missing capacity resistor.
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Error Codes: Indoor Units 1 2.7 Thermistor Abnormality (C4 or C9) Error code LED indications The table below describes the two thermistor abnormalities. 5 Error Description C4 Malfunctioning heat exchanger thermistor system. C9 Malfunctioning suction air thermistor system. The table below shows the LED indications.
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ESIE03–01 Troubleshooting Error Codes: Indoor Units 1 To troubleshoot, proceed as follows: Check the connector connection. Is it connected properly? No Correct the connection. Yes 3 Check the thermistor resistance. Is it normal? No Replace the thermistor. 4 Yes Check the contact between thermistor and PCB. Is the contact OK? No 5 Correct contact Yes Replace outdoor unit PCB. Caution Part 3 – Troubleshooting C4: Indoor liquid pipe thermistor (R2T).
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Error Codes: Indoor Units 1 2.8 ESIE03–01 Malfunctioning Remote Controller Air Thermistor (CJ) Error code CJ LED indications The table below shows the LED indications. Operation 33 Error generation HAP (green) HBP (green) Normal c c Malfunctioning c c The error is generated when the remote controller thermistor becomes disconnected or shorted while the unit is running. Even if the remote controller thermistor is malfunctioning, the system can operate with the system thermistor.
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ESIE03–01 Error Codes: Outdoor Units Part 3 3 Error Codes: Outdoor Units 3.1 What Is in This Chapter? Introduction In the first stage of the troubleshooting sequence, it is important to correctly interpret the error code on the remote controller display. The error code helps you to find the cause of the problem. Overview This chapter contains the following topics: Part 3 – Troubleshooting Topic See page 3.2–Activation of Safety Device (EO) 3–38 3.
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Error Codes: Outdoor Units 1 3.2 Activation of Safety Device (EO) Error code E0 Error generation The error is generated when a safety device has detected an abnormality. Causes The possible causes are: 33 4 ESIE03–01 P Malfunctioning safety device input connection P Broken or disconnected safety device harness P Stop valve is set to “close” P Clogging refrigerant piping circuit P Air short-circuit P Malfunctioning outdoor PCB. Overview outdoor safety devices See page 3–19.
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ESIE03–01 High temperature of fan motor coil Error Codes: Outdoor Units 1 To troubleshoot, proceed as follows: The temperature of the fan motor coil is abnormally high. Is the fan rotating? Check the fan rotation when facing the front of the unit. Fan standstill. Refer to: fhe fan does not rotate. No Yes Is the fan turning counterclockwise? The fan is turning clockwise. Refer to: the fan is turning clockwise. No 33 Yes Is there air short-cycling in the unit? No Replace fan motor.
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Error Codes: Outdoor Units 1 The fan does not rotate ESIE03–01 To troubleshoot, proceed as follows: The fan does not rotate. Check outdoor unit type. Is the unit a R(Y)P71B? 33 No The unit is a R(Y)P100-125B Yes Disconnect connectors X14A and X15A on outdoor unit PCB. Disconnect connector X14 on outdoor unit PCB. 4 Try to rotate the fan with your hand. 5 Can you rotate the fan smoothly? 1 2 Remove obstacles so the fan rotates correctly or replace the fan. Reconnect connector.
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ESIE03–01 The fan is turning clockwise Error Codes: Outdoor Units 1 To troubleshoot, proceed as follows: The fan is turning clockwise. Check condensator connection. Refer to: fan motor condensator connection. Is the connection correct? No 33 Correct the connection. Refer to: fan motor condensator connection. Yes Replace fan motor. Excessive compressor current 4 To troubleshoot, proceed as follows: The compressor current is excessive.
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Error Codes: Outdoor Units 1 High temperature of compressor head ESIE03–01 To troubleshoot, proceed as follows: Compressor head temperature > 120 °C or Discharge superheat > 55 °C Check the stop valves. Are they open? 33 No Open the stop valve(s). No Check the refrigerant level. Yes Check the refrigerant piping circuit. 4 Is it clogged? 5 Yes Replace clogged part. Is the refrigerant filled to the proper level? No Fill to specified level Yes Check the compressor.
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ESIE03–01 3.3 Error Codes: Outdoor Units Failure of Outdoor Unit PC Board (E1) Remote Controller Display 1 E1 Method of Malfunction Detection A microcomputer checks whether or not E2PROM is normal. Malfunction Decision Conditions The E2PROM is malfunctioning when the power supply is turned on. Possible Causes P 33 Faulty outdoor unit PC board Troubleshooting 4 Turn the power supply off once and then back on. Reset normally? YES Could result from external cause (e.g.
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Error Codes: Outdoor Units 1 3.4 Abnormal High Pressure (Detected by the HPS) (E3) Error code E3 Error generation The error is generated when the high-pressure switch is activated during compressor operation.
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ESIE03–01 Troubleshooting Error Codes: Outdoor Units 1 To troubleshoot, proceed as follows: Check the connections of the high pressure systems. Is HPS correctly connected to the outdoor unit PCB? No Connect correctly. Yes y y Does the HPS have continuity? 33 Some models are not equipped with a HPS. Turn the power OFF and back ON after 2 or 3 minutes. Check the continuity of the HPS for control and safety. 4 Replace HPS without continuity.
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Error Codes: Outdoor Units 1 3.5 Abnormal Low Pressure (Detected by the LPS) (E4) Error code E4 Error generation The error is generated when the low-pressure switch is activated during compressor operation.
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ESIE03–01 Troubleshooting Error Codes: Outdoor Units 1 To troubleshoot, proceed as follows: Check the connections of the low pressure system. Is the LPS correctly connected to the outdoor unit PCB? No Connect correctly. Yes y y 33 Turn the power OFF and back ON after 2 or 3 minutes. Check the continuity of the LPS for control and safety. Does this LPS have continuity? 4 Replace LPS without continuity.
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Error Codes: Outdoor Units 1 3.6 Compressor Overcurrent (E6) Remote Controller Display 33 ESIE03–01 E6 Method of Malfunction Detection The input current value is detected with a current sensor. Malfunction Decision Conditions When the compressor input current exceeds the specified input current value. Refer "Approximate Input current value" on next page.
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ESIE03–01 Error Codes: Outdoor Units 1 Troubleshooting Check for the installation conditions. Is the stop valve open? NO Open the stop valve. YES See "Evaluation of abnormal high pressure" on page 3–81 High pressure is too high YES Correct the high pressure. 33 NO Check for the power supply voltage. The voltage has dropped. 4 YES Correct the power supply. 5 NO Spare PC board is installed using an adapter not suitable for the applicable model. [See (Note) below.
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Error Codes: Outdoor Units 1 3.7 ESIE03–01 Malfunctioning Electronic Expansion Valve (E9) Error code E9 Error generation The error is generated when the following coil current condition is not met: Open circuit < coil current < short circuit. Resistance values The table below contains the reference resistance values.
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ESIE03–01 Troubleshooting Error Codes: Outdoor Units 1 To troubleshoot, proceed as follows: Turn the power supply off and back on again Normal reset? No Check resistance of electronic expansion valve coil. Yes Outside cause (electric noise, etc.). Is the electronic expansion valve connected to the outdoor unit PCB? No 33 Connect correctly. Yes Did you measure the resistance over a grey wire? 4 No No Yes Faulty electronic expansion valve. Yes Replace outdoor unit PCB.
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Error Codes: Outdoor Units 1 33 3.8 ESIE03–01 Malfunctioning in Discharge Pipe Temperature (F3) Error code F3 Error generation The error is generated when: Causes 4 P Discharge pipe temperature becomes abnormally high P Discharge pipe temperature rises suddenly P Discharge pipe thermistor is not in its holder.
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ESIE03–01 Troubleshooting Error Codes: Outdoor Units 1 To troubleshoot, proceed as follows: Check the amount of refrigerant. Is it correct? No Fill with the proper amount of refrigerant. Yes 33 Check the discharge pipe sensor.
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Error Codes: Outdoor Units 1 3.9 ESIE03–01 Malfunctioning HPS (H3) Error code H3 Error generation The error is generated when there is no continuity in the high-pressure switch during compressor OFF. Causes The possible causes are: 33 Troubleshooting P Malfunctioning high-pressure switch P Broken or disconnected high-pressure switch harness P Malfunctioning high-pressure switch connector connection P Malfunctioning outdoor unit PCB.
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ESIE03–01 3.10 Error Codes: Outdoor Units Malfunctioning Outdoor Thermistor System (H9) 1 Error code H9 Error generation The error is generated when the thermistor resistance is out of its range (60ø to 600kø). Causes The possible causes are: Troubleshooting P Malfunctioning outdoor thermistor P Malfunctioning outdoor thermistor connector connection P Malfunctioning outdoor unit PCB. 33 To troubleshoot, proceed as follows: Check the unit type.
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Error Codes: Outdoor Units 1 33 3.11 ESIE03–01 Malfunctioning Discharge Pipe Thermistor System (J3) Error code J3 Error generation The error is generated when the thermistor resistance is out of its range. Causes The possible causes are: Troubleshooting P Malfunctioning discharge pipe thermistor P Malfunctioning discharge pipe thermistor connector connection P Malfunctioning outdoor unit PCB.
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ESIE03–01 3.12 Error Codes: Outdoor Units Malfunctioning Heat Exchanger Thermistor System (J6) Error code J6 Error generation The error is generated when the thermistor resistance is out of its range. Causes The possible causes are: Troubleshooting P Malfunctioning heat exchanger thermistor P Malfunctioning heat exchanger thermistor connector connection P Malfunctioning outdoor unit PCB. 1 33 To troubleshoot, proceed as follows: Check the unit type.
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Error Codes: Outdoor Units 1 3.13 Abnormal Heat Exchanging Temperature (F6) Remote Controller Display 33 ESIE03–01 F6 Method of Malfunction Detection The high pressure control (stop) is made according to temperature detected with outdoor unit heat exchanging thermistor in cooling operation or indoor unit heat exchanging thermistor in heating operation.
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ESIE03–01 3.14 Error Codes: Outdoor Units Malfunction of Current Sensor System (J2) Remote Controller Display 1 J2 Method of Malfunction Detection The malfunction of current sensor is detected through the current detected with the current sensor. Malfunction Decision Conditions While in operation: When the current detected with the current sensor is not more than a constant value. 33 While in stopping: When the current detected with the current sensor is not less than a constant value.
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Error Codes: Outdoor Units 1 3.15 Failure of Capacity Setting (PJ) Remote Controller Display 33 4 ESIE03–01 PJ Method of Malfunction Detection Check whether set value (i.e., factory set value) written in E2PROM or set value with the (replaced) capacity setting adapter (X26A) is the same as that of outdoor unit capacity.
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ESIE03–01 Error Codes: System Malfunctions Part 3 4 Error Codes: System Malfunctions 4.1 What Is in This Chapter? Introduction In the first stage of the troubleshooting sequence, it is important to correctly interpret the error code on the remote controller display. The error code helps you to find the cause of the problem. Overview This chapter contains the following topics: Part 3 – Troubleshooting Topic See page 4.2–Gas Shortage Detection (UO) 3–62 4.3–Reverse Phase (U1) 3–63 4.
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Error Codes: System Malfunctions 1 4.2 ESIE03–01 Gas Shortage Detection (UO) Error code Error method U0 The discharge pipe thermistor detects the malfunction temperature at which there can be a gas shortage. If the discharge temperature exceeds 125°C during more than 20 s, the outdoor unit will stop and retry when the guard timer is OFF (3 min have passed). During the retrial, the expansion valve will be opened 90 pulses more than in case of the previous start.
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ESIE03–01 4.3 Error Codes: System Malfunctions Reverse Phase (U1) Error code 1 U1 This error code is only for 3-phase equipment. Error generation The error is generated when the difference between phase L1 and L3 is not 240°. The illustration below shows the 3-phase network.
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Error Codes: System Malfunctions 1 Troubleshooting ESIE03–01 To troubleshoot, proceed as follows: Check power L1-L2-L3= 400V –10% L1-N= 230V –10% L2-N= 230V –10% L3-N= 230V –10% Does the power correspond with previous data? 33 No Correct power supply. Yes 1. 2. 3. 4 Turn the power off. Change L1-L2 or L2-L3. Turn the power on. Is U1 displayed on the remote controller? 5 No Phases are not correct. Yes Replace outdoor unit PCB.
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ESIE03–01 4.4 Error Codes: System Malfunctions Transmission Error between Indoor and Outdoor Unit (U4 or UF) Error code 1 U4or UF Error generation The error is generated when the microprocessor detects that the transmission between the indoor and the outdoor unit is not normal over a certain amount of time.
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Error Codes: System Malfunctions 1 Troubleshooting 2 ESIE03–01 To troubleshoot, proceed as follows: Continued from previous page Is HAP flashing? Check of outdoor unit microcomputer normal HAP NO (ON or OFF) Turn the power supply off once and then back on. YES Is HAP flashing? 33 YES Resets normally. Could be outside cause (noise...). NO Is HAP on? 4 YES Failure of outdoor unit PCB. NO (OFF) Turn off the power supply, disconnect the NO.
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ESIE03–01 4.5 Error Codes: System Malfunctions Transmission Error between Indoor Unit and Remote Controller (U5) Error code 1 U5 Error generation The error is generated when the microprocessor detects that the transmission between the indoor unit and the remote controller is not normal over a certain amount of time. Causes The possible causes are: Troubleshooting P Malfunctioning remote controller P Malfunctioning indoor PCB P Outside cause (noise...
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Error Codes: System Malfunctions 1 4.6 ESIE03–01 Transmission Error between MAIN Remote Controller and SUB Remote Controller (U8) Error code U8 Error generation The error is generated when, in case of controlling with two remote controllers, the microprocessor detects that the transmission between the indoor unit and the remote controllers (MAIN and SUB) is not normal over a certain amount of time.
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ESIE03–01 4.7 Error Codes: System Malfunctions Malfunctioning Field Setting Switch (UA) 1 Error code UA Error generation The error is generated when incorrect field settings have been set for pair/twin/triple/double twin. Causes The possible causes are: P Malfunctioning indoor or outdoor unit PCB P Malfunctioning power supply PCB P Indoor-outdoor, indoor-indoor unit transmission wiring P Malfunctioning remote controller wiring.
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Error Codes: System Malfunctions 1 Troubleshooting ESIE03–01 To troubleshoot, proceed as follows: Is the remote controller connected to more than one indoor unit? YES Connect the remote controller correctly. NO Is the outdoor unit used for Twin system? NO Check setting "No. of Connected Twin System Indoor Units" of indoor unit. YES Is the setting of Pair/Twin/Triple set correctly? 33 NO Set correctly.
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ESIE03–01 Additional Checks for Troubleshooting Part 3 5 Additional Checks for Troubleshooting 5.1 What Is in This Chapter? Introduction This chapter explains how you must check the units to carry out troubleshooting correctly. Overview This chapter contains the following topics: Part 3 – Troubleshooting 1 33 Topic See page 5.2–Indoor Unit: Checking the Fan Motor Hall IC 3–72 5.3–Indoor Unit: Checking the Power Supply Wave Form 3–73 5.
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Additional Checks for Troubleshooting 1 5.2 Indoor Unit: Checking the Fan Motor Hall IC Applicable units Units using phase cut controlled fan motor with feedback signal. Checking To check the indoor unit fan motor hall IC, proceed as follows: 33 4 5 3–72 ESIE03–01 Step Action 1 Make sure connector S7 on PCB 1 is properly connected. 2 Make sure the power is ON and that there is no operation. 3 Measure the voltage between pin 1 and 3 of S7.
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ESIE03–01 5.3 Additional Checks for Troubleshooting Indoor Unit: Checking the Power Supply Wave Form Checking 1 To check the power supply wave form, proceed as follows: Step Action 1 Measure the power supply wave form between pin 1 and 3 of X1M for the outdoor units or between pin 1 and 3 of X2M for the indoor units.
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Additional Checks for Troubleshooting 1 5.4 Checking ESIE03–01 Outdoor Unit: Checking the Refrigerant System To check the refrigerant system, proceed as follows: Check discharge pipe thermistor R3T. Is the discharge pipe thermistor R3T disconnected from the holder? 33 Yes No Check for gas leaks using a leak tester. Replace the refrigerant. Correct the problem.
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ESIE03–01 5.5 Additional Checks for Troubleshooting Outdoor unit: Checking the Installation Condition Checking 1 To check the installation condition, proceed as follows: Check the space for all air passage around the suction and discharge areas. Is the minimum space respected? No Change the installation location. 33 Yes Does the discharged air from other outdoor units cause an increase of the suction temperature? Is the heat exchanger clean? No Clean the heat exchanger.
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Additional Checks for Troubleshooting 1 5.6 Checking ESIE03–01 Outdoor Unit: Checking the Discharge Pressure To check the discharge pressure, proceed as follows: Check the discharge pressure. Is the pressure > 24 kg/ cm² during cooling operation? 33 Yes Is the solenoid valve open? 4 No Is there conductivity in the coil of the solenoid valve? No Replace the coil of the solenoid valve. No Clean them. No Yes Yes 5 Is the stop valve open? Replace the solenoid valve. No Open the stop valve.
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ESIE03–01 5.7 Additional Checks for Troubleshooting Outdoor Unit: Checking the Expansion Valve Checking 1 To check the electronic expansion valve, proceed as follows: Step Action 1 Check if the expansion valve connector is correctly inserted in the X24A of PCB 1. 2 Compare the expansion valve unit with the number of the connector to make sure it is correctly connected. 3 Switch the power OFF. 4 Switch the power ON to check whether the expansion valve is producing a clicking sound. 5 33 If.
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Additional Checks for Troubleshooting 1 5.8 ESIE03–01 Checking the Thermistors Thermistors If the cause of the problem is related to the thermistors, then the thermistors should be checked prior to changing the PCB. For more information about these thermistors, see: 33 Overview of thermistors P ’Wiring Diagrams: Outdoor Units’ P ‘Wiring Diagrams: Indoor Units’ P "Functions of Thermistors" on page 4.
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ESIE03–01 5.9 Additional Checks for Troubleshooting R1T and R2T Temperature – resistance 1 The table below is the thermistor (R1T and R2T) temperature – resistance conversion table. Temp. (°C) Part 3 – Troubleshooting R1T (kΩ) R2T (kΩ) Temp. (°C) R1T (kΩ) R2T (kΩ) Temp. (°C) R1T (kΩ) R2T (kΩ) -20 197.81 192.08 20 25.01 24.45 60 4.96 4.87 -19 -18 -17 -16 -15 -14 -13 -12 -11 186.53 175.97 166.07 156.80 148.10 139.94 132.28 125.09 118.34 181.16 170.94 161.36 152.38 143.96 136.05 128.
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Additional Checks for Troubleshooting 1 5.10 R3T Temperature – resistance The table below is the thermistor (R3T) temperature – resistance conversion table. Temp. (°C) Resist. (kΩ) — 33 4 5 3–80 ESIE03–01 Temp. (°C) Resist. (kΩ) Temp. (°C) Resist. (kΩ) — 60.0 52.8 130.0 5.4 — -6.0 -4.0 -2.0 — 1120.0 1002.5 898.6 62.0 64.0 66.0 68.0 48.9 45.3 42.0 39.0 132.0 134.0 136.0 138.0 5.4 4.8 4.6 4.3 0.0 806.5 70.0 36.3 140.0 4.1 2.0 4.0 6.0 8.0 724.8 652.2 587.6 530.1 72.0 74.0 76.
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ESIE03–01 5.11 Additional Checks for Troubleshooting Evaluation of abnormal high pressure 1 Abnormally high pressure level is mostly caused by the condenser side. The following contents are provided by service engineer based on their field checks. Further, the number is listed in the order of degree of influence.
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Additional Checks for Troubleshooting 1 5.12 ESIE03–01 Evaluation of abnormal low pressure Abnormally low pressure level is mostly caused by the evaporator side. The following contents are provided based on field checking of service engineer. Further, the number is listed in the order of degree of influence.
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ESIE03–01 5.13 Additional Checks for Troubleshooting Check for Clogged Points Checks 1 Temperature differences must occur before or after the clogged points! 1 3 3 4 5 33 2 RAC Indoor Unit Part 3 – Troubleshooting COMP Outdoor Unit Check points Check factor Causes 1 Temperature difference P Dust P Choked moisture P Reduced effective pipe diameter due to adherent contamination, etc. Around expansion mechanism 4 Remedies Replace the expansion valve.
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Additional Checks for Troubleshooting ESIE03–01 1 33 4 5 3–84 Part 3 – Troubleshooting
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ESIE03–01 4 Part 4 Commissioning and Test Run 3 What is in this part? This part contains the following chapters: Chapter See page 1–Pre-Test Run Checks 4–3 2–Field settings 4–9 3–Test Run and Operation Data 4–33 44 5 Part 4 – Commissioning and Test Run 4–1
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ESIE03–01 1 3 4 5 4–2 Part 4 – Commissioning and Test Run
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ESIE03–01 Pre-Test Run Checks Part 4 1 Pre-Test Run Checks 1.1 What Is in This Chapter? Introduction Overview This chapter contains the following information: P Checks before test run P Test run checks P Setting the address for the receiver of the wireless remote controller P Setting the address for the wireless remote controller. 3 4 This chapter contains the following topics: Topic See page 1.2–Test Run Checks 4–4 1.
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Pre-Test Run Checks 1 1.2 ESIE03–01 Test Run Checks Checks before test run Before carrying out a test run, proceed as follows: Step Action 1 Make sure the voltage at the primary side of the safety breaker is: 2 3 Test run checks 4 5 4–4 P 230 V ± 10% for 1-phase units P 400V ± 10% for 3-phase units. Fully open the liquid and the gas stop valve. To carry out a test run, check the following: P Check that the temperature setting of the remote controller is at the lowest level or test mode.
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ESIE03–01 1.3 Pre-Test Run Checks Setting the Wireless Remote Controller Introduction Setting the address for the receiver 1 To set the wireless remote controller, you have to set the address for: P The receiver of the wireless remote controller P The wireless remote controller. The address for the receiver of the wireless remote controller is factory set to 1. To change this setting, proceed as follows: Step Action 1 Turn OFF the power. 2 Remove the sealing pad on the top of the receiver.
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Pre-Test Run Checks 1 Setting the address for the wireless remote controller ESIE03–01 The address for the wireless remote controller is factory set to 1. To change this setting, proceed as follows: Step Action 1 Hold down the FILTER RESET button and the TEST button for at least 4 s, to go to field set mode. The display indicates the field set mode. 3 4 FILTER RESET TEST 5 2 Press the FAN button to select a multiple setting (A/b), see ‘Multiple settings A/b’ further in this section.
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ESIE03–01 Pre-Test Run Checks Step Action 3 Press the UP and DOWN buttons to set the address. Set the same address as the receiver (1, 2 or 3). The receiver does not work with addresses 4, 5 and 6. 1 UP DOWN 3 4 4 5 Press the RESERVE button to confirm the setting.
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Pre-Test Run Checks 1 ESIE03–01 Step Action 5 Press the TEST button to quit the field set mode and return to the normal display. ON / OFF TEMP TIME ˚C UP DOWN FAN RESERVE CANCEL 3 TIMER MODE SWING /TEST TEST 4 5 Multiple settings A/b When an outside control (central remote controller...) controls an indoor unit, sometimes the indoor unit does not respond to ON/OFF and temperature settings commands from this controller.
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ESIE03–01 Field settings Part 4 2 Field settings 2.1 What Is in This Chapter? Introduction Overview This chapter contains the following information: P How to change the field settings P The field settings P The factory settings. 3 This chapter contains the following topics: Topic See page 2.2–How to Change the Field Settings with the Wired Remote Controller 4–10 2.3–How to Change the Field Settings with the Wireless Remote Controller 4–12 2.
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Field settings 1 2.2 ESIE03–01 How to Change the Field Settings with the Wired Remote Controller Installation conditions The field settings have to be changed with the remote controller according to the installation conditions. Wired remote controller The illustration below shows the wired remote controller.
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ESIE03–01 Setting Field settings 1 To set the field settings, you have to change: P “Mode No.” P “First code No.” P “Second code No.”. To change the field settings, proceed as follows: Step Action 1 Hold down the INSPECTION/TEST button for at least 4 s during normal mode to enter the “Field setting mode”. 2 Press the TEMPERATURE CONTROL button until the desired “Mode No.” appears. 3 P If the indoor unit is under group control, all settings for all the indoor units are set at the same time.
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Field settings 1 2.3 ESIE03–01 How to Change the Field Settings with the Wireless Remote Controller Optional accessories If optional accessories are mounted on the indoor unit, the indoor unit setting may have to be changed. Refer to OH98-2 or the installation manual (optional handbook) for each optional accessory. Wireless remote controller The illustration below shows the wireless remote controller. UP button Mode No. 3 DOWN button Field setting mode RESERVE button First code No.
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ESIE03–01 2.4 Field settings Overview of the Field Settings of the Indoor Units Field settings Mode No. 10 or 20 1 The table below contains the possible field settings of all indoor units. First code No. Second code No. Description of the setting 01 02 03 04 0 Filter counter Light contamination heavy contamination — — 1 Filter type Long Super long External Oil mist 2 Remote thermistor of the remote controller TH1 = rem.
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Field settings 1 2.5 ESIE03–01 Overview of the Factory Settings of the Indoor Units Factory settings Mode No. 10 or 20 3 4 The table below contains the factory settings of all indoor units First code No. Second code No.
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ESIE03–01 2.6 Field settings Setting the Ceiling Height Incorrectly setting 1 If you set the controller incorrectly, a connection mistake malfunction “UA” will appear on the remote controller display. See ’Malfunctioning Field Setting Switch (UA)’ on page 3–69. Mode No. 13 or 23 First code No. 0 Set the second code No., according to the tables below. FHYP Second code No. Ceiling-suspended type 01 Height < 2.7 m 02 2.7 m < height < 3.5 m 03 Not used 3 FAYP Second code No.
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Field settings 1 2.7 ESIE03–01 Setting the Filter Counter Mode No. 10 or 20 First code No. 0 When the filter counter indication time is set to ON, set the second code No., according to the table below Unit 3 Mode No.
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ESIE03–01 2.8 Field settings MAIN/SUB Setting when Using Two Remote Controllers 1 Situation The MAIN/SUB setting is necessary when one indoor unit is controlled by two remote controllers. When you use two remote controllers (control panel and separate remote controller), set one to MAIN and the other to SUB. You can do this by setting the switch on the remote controller’s PCB. Setting The remote controllers are factory set to MAIN, so you only have to change one remote controller from MAIN to SUB.
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Field settings 1 2.9 ESIE03–01 Setting the Centralized Group No. When? If you want to carry out centralized control with a central remote controller and a unified ON/OFF controller, you have to set the group No. for each group with the remote controller. Wired remote controller The illustration below shows the wired remote controller. 3 UNIT No. GROUP SETTING 4 3 4 1 7 5 6 Setting 5 2 To set the “Centralized group No.
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ESIE03–01 Group control for FDYMP indoor units Field settings For group control, cut the jumper indicated as “master/slave” on the PCB of the “slave” indoor units (=slave PCB). Do not cut the jumper on the PCB of the indoor unit to which the remote controller is connected (=master PCB). Master Note 1 Slave It is not necessary to designate an indoor unit address when using group control. Tha address is automatically set when the power is activated.
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Field settings 1 2.10 ESIE03–01 Field settings when using a spare part PCB of Sky-Air L-series outdoor unit When In case the outdoor PCB needs to be replaced by a spare part PCB, it is required to execute below-mentioned field settings to ensure correct operation of the unit. Required action In case of repair using this part, replace the part according to the following instruction: Attention on service! 1 Please be sure to work after turning off all related circuit breakers.
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ESIE03–01 Field settings 1 H/P C/O Please cut jumper J5 as shown in fig. 1 on this page. (Refer to fig. 3 [Nr. 7]) (CAUTION) Please replace the PCB ass.y when it is still included in the resin case. Please reconnect all connectors as before according to the electric wiring diagram.
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Field settings 1 ESIE03–01 Figure 3: The outline drawing of the PCB assembly (including the resin case) [Nr. 1] The attachment position of a capacity setting adaptor (CN26/X26A) [Nr. 2] The connector attachment position for terminal protection (CN14/X14A) [Nr. 3] The attachment position of a short circuit connector (CN12/X12A) [Nr. 4] The attachment position of a short circuit connector (CN9/X9A) 3 [Nr.
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ESIE03–01 2.11 Field settings The Field Setting Levels Introduction The inspection level 1 The three field setting levels are: P Inspection level P Monitoring level P Maintenance mode settings. The inspection level is the highest level of the three field setting levels. You can change the views in the inspection level by pressing the INSPECTION/TEST button. The flow chart below explains the different windows of the inspection level.
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Field settings 1 Possible system settings ESIE03–01 The table below contains the possible system settings, which are displayed on the remote controller if the TEST button is pushed twice shortly.
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ESIE03–01 Field settings Mode No. 1 The table below describes the maintenance mode settings. Function Content and operation method Example of the remote controller display Display malfunction history 40 History error codes The history No. can be changed with the programming time button. Past error code Unit No.
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Field settings 1 2.12 Overview of the Field Settings: R(Y)P71-125L Jumpers The table below contains the jumper field settings. Jumper Label on PCB Function Applicable units J1 Thermo CTR Change thermostat OFF control indoor unit P RP71-125L 4–28 J3 Thermo CTR2 Change thermostat ON control indoor unit P RYP71-125L 4–28 DIP switches 3 4 5 ESIE03–01 See page The table below contains the DIP switch field settings.
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ESIE03–01 BS Field settings 1 The table below contains the BS field setting.
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Field settings 1 2.13 ESIE03–01 Jumpers Input and output The table below describes the input and the output of the jumpers. Item Description Input ∆Tr Output 3 J1 Cooling ∆Tr = Tr - Ts P Tr = indoor unit suction air temp. Heating ∆Tr = Ts - Tr P Ts = temp. set by the remote controller Magnetic switch compressor K1M The function of jumper J1 is to reduce the possibility of thermostat OFF (reduce ON/OFF cycle compr.).
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ESIE03–01 2.14 Field settings DIP switch DS1 DS1-3: Defrost starting condition 1 The table below describes the DIP switch. Setting Illustration Function Factory setting OFF For temperature settings at defrosting, see page 2–40. 1 2 Accumulated operation time for defrost activation = 3 h. Field setting ON 1 3 P Increases the temp. conditions for defrost activation with 4°C. P Changes the accumulated operation time from 3 h to 40 min in order to advance the defrosting operation.
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Field settings 1 2.15 DS2-3: Freeze 1 ESIE03–01 DIP switch DS2 The table below describes the DIP switch. Setting Illustration Function Factory setting OFF Enables the “intelligent” control function. 1 3 Field setting 2 3 4 See page 2–29. 2 3 4 Disables the “intelligent” control function. Freeze-up start/stop decided by indoor unit. (Unit will restart when evaporator temperature reached 70°C for 10 minutes.
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ESIE03–01 DS2-4: Method and illustration Field settings The capacity will be increased when the dip switch DS2-4, mounted on the outdoor PCB, is set to ON .
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Field settings ESIE03–01 1 3 4 5 4–32 Part 4 – Commissioning and Test Run
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ESIE03–01 Test Run and Operation Data Part 4 3 Test Run and Operation Data Introduction Overview 1 This chapter contains the following information: P General operation data P Operation ranges. 3 This chapter contains the following topics: Topic See page 3.1–General Operation Data 4–34 3.2–RP71L7V1, RP71L7W1, RP100L7V1, RP100L7W1 and RP125L7W1 4–36 3.
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Test Run and Operation Data 1 3.1 ESIE03–01 General Operation Data During cooling mode and dry keep 3 The operating conditions must be as follows: Items Operating modes Outdoor temp. P c/o: -15 to +46°CDB P A safety device may stop the operation. P h/p: -5 to +46°CDB P Condensation may occur on the indoor unit and start dripping. Indoor temp. +14 to +28°CWB Indoor humidity 80% If the operation is out this range...
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ESIE03–01 Correlation of Air- Conditioner's Operation Status and Pressure / Running Current Test Run and Operation Data 1 What happens in comparison to normal values is summarized in the table below. (Measured from 15 ~ 20 minutes or more after operation starts.
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Test Run and Operation Data 1 3.2 ESIE03–01 RP71L7V1, RP71L7W1, RP100L7V1, RP100L7W1 and RP125L7W1 Conditions Operation range The illustration in this section is based on the following conditions: P Equivalent piping length: 7.5 m P Level difference: 0 m P Air flow rate: High. The illustration below shows the operation range.
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ESIE03–01 3.3 Test Run and Operation Data RYP71L7V1, RYP71L7W1, RYP100L7V1, RYP100L7W1 and RYP125L7W1 Conditions Operation range: Cooling 1 The illustrations in this section are based on the following conditions: P Equivalent piping length: 7.5 m P Level difference: 0 m P Air flow rate: High. The illustration below shows the operation range.
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Test Run and Operation Data ESIE03–01 1 3 4 5 4–38 Part 4 – Commissioning and Test Run
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ESIE03–01 4 Part 5 Disassembly and Maintenance 3 What is in this part? This part contains the following chapters: Chapter See page 1–Disassembly and Maintenance: Outdoor Units 5–3 2–Disassembly and Maintenance: Indoor Units 5–17 4 55 Part 5 – Disassembly and Maintenance 5–1
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ESIE03–01 1 3 5 5–2 Part 5 – Disassembly and Maintenance
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ESIE03–01 Disassembly and Maintenance: Outdoor Units Part 5 1 Disassembly and Maintenance: Outdoor Units 1.1 What Is in This Chapter? Introduction Overview This chapter contains the following information on the outdoor units: P Exploded views P Components. 1 3 This chapter contains the following topics: Topic See page 1.2–RP71L7V1, RP71L7W1 5–4 1.3–RYP71L7V1 and RYP71L7W1 5–6 1.4–RP100L7V1, RP100L7W1 5–8 1.6–RYP100L7V1, RYP100L7W1 5–12 1.
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Disassembly and Maintenance: Outdoor Units 1 1.2 ESIE03–01 RP71L7V1, RP71L7W1 Exploded view The illustration below shows the exploded view.
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ESIE03–01 Components Disassembly and Maintenance: Outdoor Units 1 The table below contains the components of the exploded view. No. Component No. Component 1 #7029# / #7039# Compressor 35 Terminal strip 2 Rubber cushion pre-assy 36 Capacitor fixing band 3 Sound insulation (for comp/1) 37 Capacitor fixing band 4 Bolt for compressor 38 Comp. Motor capacitor 5 Nut with washer 39 Comp.
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Disassembly and Maintenance: Outdoor Units 1 1.3 ESIE03–01 RYP71L7V1 and RYP71L7W1 Exploded view The illustration below shows the exploded view.
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ESIE03–01 Components Disassembly and Maintenance: Outdoor Units 1 The table below contains the components of the exploded view. No. Component No. Component 1 #7028# / #7039# Compressor 35 El. compo.
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Disassembly and Maintenance: Outdoor Units 1 1.4 ESIE03–01 RP100L7V1, RP100L7W1 Exploded view The illustration below shows the exploded view.
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ESIE03–01 Components Disassembly and Maintenance: Outdoor Units 1 The table below contains the components of the exploded view. No. Component No. Component 1 #7027# / #7038# Compressor 35 Thermistor 2 Sound insulation (for comp/1) 36 Terminal strip 3 Rubber cushion pre-assy 37 Capacitor fixing band 4 Bolt for compressor 38 Capacitor fixing band 5 Nut with washer 39 Comp. Motor capacitor 6 Plate finned coil heat exch as 40 Comp.
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Disassembly and Maintenance: Outdoor Units 1 1.5 ESIE03–01 RP125L7W1 Exploded view The illustration below shows the exploded view.
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ESIE03–01 Components Disassembly and Maintenance: Outdoor Units 1 The table below contains the components of the exploded view. No. Component No.
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Disassembly and Maintenance: Outdoor Units 1 1.6 ESIE03–01 RYP100L7V1, RYP100L7W1 Exploded view The illustration below shows the exploded view.
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ESIE03–01 Components Disassembly and Maintenance: Outdoor Units 1 The table below contains the components of the exploded view. No. Component No.
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Disassembly and Maintenance: Outdoor Units 1 1.7 ESIE03–01 RYP125L7W1 Exploded view The illustration below shows the exploded view.
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ESIE03–01 Components Disassembly and Maintenance: Outdoor Units 1 The table below contains the components of the exploded view. No. Component No.
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Disassembly and Maintenance: Outdoor Units ESIE03–01 1 3 55 5–16 Part 5 – Disassembly and Maintenance
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ESIE03–01 Disassembly and Maintenance: Indoor Units Part 5 2 Disassembly and Maintenance: Indoor Units 2.1 What Is in This Chapter? Introduction Overview This chapter contains the following information on the indoor units: P Exploded views P Components. P Disassembly procedures 1 3 This chapter contains the following topics: Topic See page 2.2–FHYCP35B7V1, FHYCP45B7V1, FHYCP60B7V1 and FHYCP71B7V1 5–18 2.3–FHYBP35B7V1 and FHYBP45B7V1 5–20 2.4–FHYBP60B7V1 and FHYBP71B7V1 5–22 2.
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Disassembly and Maintenance: Indoor Units 1 2.2 ESIE03–01 FHYCP35B7V1, FHYCP45B7V1, FHYCP60B7V1 and FHYCP71B7V1 Exploded view The illustration below shows the exploded view.
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ESIE03–01 Components Disassembly and Maintenance: Indoor Units 1 The table below contains the components of the exploded view. No. Component No. Component B1 Heat exchanger assy E24 Float switch B1.1 Distributor with filter E25 Fan motor B1.2 Single union joint F1 Casing assy B1.3 Single union joint F6 Inspection cover assy B1.4 Flare nut F8 Drain pan assy B1.5 Flare nut F8.
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Disassembly and Maintenance: Indoor Units FHYBP35B7V1 and FHYBP45B7V1 3 Fan assy 55 Accessories The illustration below shows the exploded view. Switch box Exploded view Drain pump assy 1 2.
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ESIE03–01 Components Disassembly and Maintenance: Indoor Units 1 The table below contains the components of the exploded view. No. Component No. Component 1 Top plate assy 31.1 Fan top plate 2 Right plate assy 31.2 Fan housing bottom 3 Left plate assy 31.3 Fan housing top 4 Interchangeable plate 31.4 Rotor assy 5 Small bottom plate 31.4.1 Hexagon socket screw 6 Large bottom plate 31.5 Fan motor 7 Air outlet flange 31.6 Fan motor stand 8 Center stay assy 31.
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Disassembly and Maintenance: Indoor Units FHYBP60B7V1 and FHYBP71B7V1 3 Fan assy 55 Accessories The illustration below shows the exploded view. Switch box Exploded view Drain pump assy 1 2.
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ESIE03–01 Components Disassembly and Maintenance: Indoor Units 1 The table below contains the components of the exploded view. No. Component No. Component 1 Top plate assy 31.1 Fan top plate 2 Right plate assy 31.2 Fan housing bottom 3 Left plate assy 31.3 Fan housing top 4 Interchangeable plate 31.4 Rotor assy 5 Small bottom plate 31.4.1 Hexagon socket screw 6 Large bottom plate 31.5 Fan motor 7 Air outlet flange 31.6 Fan motor stand 8 Center stay assy 31.
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Disassembly and Maintenance: Indoor Units FHYBP100B7V1 and FHYBP125B7V1 Fan assy 3 Accessories The illustration below shows the exploded view. Switch box Exploded view Drain pump assy 1 2.
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ESIE03–01 Components Disassembly and Maintenance: Indoor Units 1 The table below contains the components of the exploded view. No. Component No. Component 1 Top plate assy 31.1 Fan top plate 2 Right plate assy 31.2 Fan housing bottom 3 Left plate assy 31.3 Fan housing top 4 Interchangeable plate 31.4 Rotor assy 5 Small bottom plate 31.4.1 Hexagon socket screw 6 Large bottom plate 31.5 Fan motor 7 Air outlet flange 31.6 Fan motor stand 8 Center stay assy 31.
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Disassembly and Maintenance: Indoor Units 1 2.6 ESIE03–01 FDYP125B7V1 The illustration below shows the exploded view.
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ESIE03–01 Components Disassembly and Maintenance: Indoor Units 1 The table below contains the components of the exploded view. No. Component No. Component 1 Top plate assy 6.20 Terminal strip 2 Fan assy + fan mounting plate 6.21 Thermistor 3 Side plate right 6.22 Thermistor 4 Side plate left 6.23 Tie wrap with clip 5 Service cover assy 6.24 PCB assy 6 Switch box assy 6.25 Power supply transformer 6.1 Switch box fixing plate 6.26 Grounding wire 6.
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Disassembly and Maintenance: Indoor Units 1 2.7 ESIE03–01 FHYP35BV1 and FHYP45BV1 Exploded view The illustration below shows the exploded view.
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ESIE03–01 Disassembly and Maintenance: Indoor Units Components 1 The table below contains the components of the exploded view. No. Component No. Component No. Component B1 B1.1 B1.2 B1.3 B1.4 Evaporator assy Distributor Union joint (gas line) Union joint (liquid line) Flare nut E14 E15 E16 E17 E18 Wire harness (swing motor) Wire harness (power unit) Wire harness (power unit) Thermistor Wire clip F10.1 F10.2 F10.2.1 F10.2.2 F10.2.3 B1.5 B1.6 C1 C1.1 C1.2 C1.3 C1.4 C1.4.1 C1.5 C1.5.1 C1.6 C1.
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Disassembly and Maintenance: Indoor Units 1 2.8 ESIE03–01 FHYP60BV1 and FHYP71BV1 Exploded view The illustration below shows the exploded view.
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ESIE03–01 Disassembly and Maintenance: Indoor Units Components 1 The table below contains the components of the exploded view. No. Component No. Component No. Component B1 B1.1 B1.2 B1.3 B1.4 B1.5 B1.6 C1 C1.1 C1.2 C1.3 C1.4 C1.4.1 C1.5 C1.5.1 C1.6 C1.7 C1.8 C1.9 C1.10 C1.11 C1.
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Disassembly and Maintenance: Indoor Units FHYKP35BV1, FHYKP45BV1, FHYKP60BV1 and FHYKP71BV1 Detail A 3 Switch box The illustration below shows the exploded view. Accessories Exploded view Remote controller 1 2.
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ESIE03–01 Components Disassembly and Maintenance: Indoor Units 1 The table below contains the components of the exploded view. No. Component No. Component 1 Top plate 22.6 Fan motor 2 Partition plate drain pump 22.7 Motor base 3 Side plate fan chamber 22.8 Fan shaft 4 Front plate assy 22.9 Coupling 5 Wiring cover 22.
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Disassembly and Maintenance: Indoor Units 1 2.
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ESIE03–01 Disassembly and Maintenance: Indoor Units Step Action 3 Grip the suction grille hinge strongly and remove the suction grille.
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Disassembly and Maintenance: Indoor Units 1 How to remove the Electrical Parts and PC Boards ESIE03–01 Step Action 1 Loosen the 2 screws of the control box cover and remove the control box cover. 2 Remove the 2 screws of the control box.
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ESIE03–01 Disassembly and Maintenance: Indoor Units Step Action 3 Pull down the control box and let it hang by the 2 locations in the rear. Electrical parts can now be removed. 1 Control box Rear panel 3 4 Disconnect the connector mounted on the PC board.
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Disassembly and Maintenance: Indoor Units 1 ESIE03–01 Step Action 6 Slide the PC board to the left away from the tabs on the right, and remove the PC board. Step Action 1 Gently bend the support plate located at the center of the horizontal blade, and detach the 3 How to remove the Horizontal Blade center shaft. (Two shafts provided on Types 140 and 160.) 55 Reassembling precautions The shaft at the right end of the horizontal blade is cut in D shape.
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ESIE03–01 Disassembly and Maintenance: Indoor Units Step Action 2 Then gently bend the center of the horizontal blade, and take both the end shafts out of 1 their bearings. 3 * When removing the horizontal blade from the bearings at both ends, be careful not to get the blow port thermal insulation scratched.
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Disassembly and Maintenance: Indoor Units 1 How to remove the Fan Rotor and Motor ESIE03–01 Step Action 1 Push the 2 tabs of the fan housing towards the inside with your fingers and pull out the fan housing. 3 55 Fan housing 2 Loosen the 2 hexagon set screws of the intermediate bearing..
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ESIE03–01 Disassembly and Maintenance: Indoor Units Step Action 3 Slide the intermediate bearing to the right and remove the fan rotor assembly. 1 3 4 Cut off the tie-wrap of the glass tube cover over the fan motor connector. Slide the glass tube and get the connector exposed. 5 Disconnect the 2 fan motor connectors. 6 Remove the 2 fan motor fasteners.. 55 Glass tube 7 Remove the fan motor.
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Disassembly and Maintenance: Indoor Units 1 How to remove the Fan Bearing ESIE03–01 : Step Action 1 Remove the left sidepanel installation screw. Left side panel Fan rotor 3 * Remove the fan rotor according to the procedures for removing the fan rotor and fan motor. Left side panel 55 2 Slide the left side panel toward the front of the unit and remove; 3 Remove the 2 bearing installation screws and remove the bearing.
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ESIE03–01 How to remove the Bottom Panel and Drain Pan Disassembly and Maintenance: Indoor Units 1 : Step Action 1 Remove the 7 bottom panel installation screws (2 each on the left and right, 3 in the rear), and remove the bottom panel. 3 * Remove the rear surface screws (2 each on the left and right), and remove the center screw while supporting the bottom panel from underneath. 2 55 Let down the rear of the bottom panel, push out toward the front (removed from the hooking part) and remove..
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Disassembly and Maintenance: Indoor Units 1 Step Action 3 Remove the drain pan retainer (2 screw).
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ESIE03–01 How to remove the Swing Motor Disassembly and Maintenance: Indoor Units 1 : Step Action 1 Remove the screw from the right side panel. Slide the right side panel toward the front and detach it. 2 Cut off the tie-wrap of the swing motor connector.. 3 Tie-wrap 3 Disconnect the connector from the swing motor connector.
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Disassembly and Maintenance: Indoor Units 1 ESIE03–01 Step Action 4 Remove the screw from the swing motor. The swing motor has two projections on it. Lower the swing motor and take it out. D-shaped cut Projections 3 * When reassembling, fit the horizontal blade shaft end to the D-profiled bearing. Apply the tie-wrap to the connectors to secure them in place.
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ESIE03–01 2.
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Disassembly and Maintenance: Indoor Units 1 ESIE03–01 Step Action 3 To remove air filter, lift the tabs up at the same time and pull it forward.
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ESIE03–01 How to remove the Suction Grille Disassembly and Maintenance: Indoor Units 1 : Step Action 1 Unhook two drop-prevention strings while supporting suction grille with hand. 3 2 Open suction grille forward for approx. 45 degree. 55 45 deg.
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Disassembly and Maintenance: Indoor Units 1 ESIE03–01 Step Action 3 Disengage three hooks located at rear side of the grille to remove suction grille.
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ESIE03–01 How to remove the Fan Disassembly and Maintenance: Indoor Units 1 : Step Action 1 Remove two mounting screws to dismount switch box cover. Switch box cover 3 2 Remove suction air temperature thermistor attached to bell mouth.
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Disassembly and Maintenance: Indoor Units 1 ESIE03–01 Step Action 3 Bell mouth is mounted with tree screws.Loosen a screw located at diagonal position to the pipings and remove other two screws. Loosen this screw 3 To remove bell mouth, loosen this screw and slide bell mouth to right side 55 5–52 Remove this screws 4 Remove bell mouth by sliding to piping direction. 5 To dismount fan, remove washer based nut using double-ended wrench.
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ESIE03–01 Disassembly and Maintenance: Indoor Units Step Action 6 Remove fan by pulling down.
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Disassembly and Maintenance: Indoor Units 1 How to remove the Fan Motor ESIE03–01 : Step Action 1 Removing fan motor: a. Disconnect connector. b. Remove lead wire retaining plate. 3 Lead wire retaining plate 55 Caution Fan motor can be removed without removing the lead wire retaining plate. However, when washing the heat exchanger, this plate should be removed and protect the lead wires. 2 5–54 Remove screws for mounting fan motor.
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ESIE03–01 Disassembly and Maintenance: Indoor Units Step Action 3 Remove motor by pulling down.
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Disassembly and Maintenance: Indoor Units 1 How to remove the Drain Pan ESIE03–01 : Step Action 1 To dismount three corner sections A, B and C, remove a flocked screw. 3 * Be sure to use flocked screw when reassembling Screws (three locations) Corner section (A, B and C) Corner section at piping side P 2 Remove suction grille according to the Removal of air filter and that of suction grille. Remove three flocked screws to dismount corner section D.
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ESIE03–01 Disassembly and Maintenance: Indoor Units Step Action 3 Disconnect wires and connectors from PCB. 1 To power supply PCB To connecting wire terminal strip Heat exchanger thermistor Suction air thermistor Fan motor Swing motor LED lamp (green) Remote controller terminal strip 3 LED lamp (green) Drain pump Earth terminal for remote controller Earth Connecting wire terminal strip 4 Arrange wire harness to avoid interference with next process.
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Disassembly and Maintenance: Indoor Units 1 ESIE03–01 Step Action 5 To dismount drain pan blocking plate, remove each two mounting screws located at four corners. 3 6 Remove drain pan by pulling it down.
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ESIE03–01 How to remove the Drain Pump Disassembly and Maintenance: Indoor Units 1 : Step Action 1 Drain pump is located at piping side. Cut clamp material of hose, and disconnect hose from pump. Drain pump Float switch 3 Clamp material (Tielap) Caution When reconnect drain hose with the pump, secure hose at joint using clamping materialsuch as Tielap. (Clamping material should be normally included in the stock items.) 2 Remove four screws to dismount drain pump.
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Disassembly and Maintenance: Indoor Units 1 ESIE03–01 Step Action 4 Removing float switch: a. Loosen three mounting screws to remove drain pump mounting base. b. Remove two screws located at opposite side of drain pump mounting base to dismount float switch.
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ESIE03–01 How to remove the Swing Motor Disassembly and Maintenance: Indoor Units 1 : Step Action 1 Swing motor is located at the diagonal position of piping 2 Remove two mounting screws for swing motor cover 3 Remove swing motor cover by holding two tabs on the cover. Swing motor section Air flow control blade 3 Tabs P Remove suction grille according to the removal of suction grille Screws 55 4 Remove two screws to dismount swing motor.
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Disassembly and Maintenance: Indoor Units 1 How to remove the Air Flow Control Blade ESIE03–01 : Step Action 1 To remove horizontal blade, press down tabs located at both end of blade and pull them forward. 3 55 2 5–62 Remove horizontal blade.
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ESIE03–01 2.
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Disassembly and Maintenance: Indoor Units 1 ESIE03–01 Step Action 2 To remove the air filter, push up the tab and pull down the filter. Front panel 3 3 55 P The air filter is free from the side of left or right. P It is easy to install if inserting along the guide. Disengage the holding section on upper right of the panel by pushing toward left, then slide toward right to remove the front panel.
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ESIE03–01 How to remove the Front Grille Disassembly and Maintenance: Indoor Units 1 : Step Action 1 Remove three pieces of front grille fixing screws. P Removing the front panel in accordance with "Removal of Front Panel". 3 Front grille 2 Remove the front grille by pulling forward while pushing three hooks located at upper part of the grille one by one. P If hard to remove, try to push the hooks by a screwdriver or the like to remove.
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Disassembly and Maintenance: Indoor Units 1 How to remove the Horizontal Blade and Vertical Blade ESIE03–01 : Step Action 1 Removing the horizontal blade: 1. Open the horizontal blade 2. Bend the horizontal blade slightly to disengage the fixing part at right side 3. Pull the horizontal blade rightward and take it out .
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ESIE03–01 Disassembly and Maintenance: Indoor Units Step Action 1 Removing the vertical blade: 1 1. Disengage the protrusion on upper side of blade from holder plate. (Three locations). 2.
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Disassembly and Maintenance: Indoor Units 1 How to remove the Electrical Box ESIE03–01 : Step Action 1 1. Remove the screw on the service cover 2. Remove the screw on the drip proof plate 3. Remove the screw for the grounding wire. Drip proof plate screw Service cover screw 3 Vertical blade P 55 2 Removing the front grille in accordance with "Removal of Front Grille". 1. Remove the following connectors: - Fan motor connector - Air swing motor connector. 2.
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ESIE03–01 Disassembly and Maintenance: Indoor Units Step Action 3 1. Remove the fixing screw for switch box 1 2. Pull forward the switch box holding lower part of the box.
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Disassembly and Maintenance: Indoor Units 1 How to remove the Heat Exchanger : Step Action 1 Press strongly the claws on both left and right sides of heat exchanger toward inside. Remove clip from back side.. P 3 ESIE03–01 Removing the front grille in accordance with "Removal of Front Grille". P Removing the switch box in accordance with "Removal of Switch Box". P Pay attention not to soil the floor with residual drain.
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ESIE03–01 Disassembly and Maintenance: Indoor Units Step Action 2 To remove the heat exchanger, pull it upward. 1 3 Caution When removing or reinstalling the heat exchanger, be sure to wear gloves or wrap the heat exchanger with cloth or the like. (Otherwise, the fins may injure your hand.
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Disassembly and Maintenance: Indoor Units 1 How to remove the Fan Motor and Fan Rotor ESIE03–01 : Step Action 1 Removing the fan motor: 1. Insert a Phillips tip screwdriver into the air outlet and remove the screws fixing the fan motor and fan rotor (The screws can be removed without removing of horizontal blade.) 2. Remove the two screws on the bearing cover (1) and (2) and dismantle the covers 3.
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ESIE03–01 How to remove the Air Swing Motor Disassembly and Maintenance: Indoor Units 1 : Step Action 1 1. Disconnect the air swing motor connector in the electrical box 2. Remove the screw which fixes the air swing motor.. P Removing the front grille in accordance with "Removal of Front Grille". Swing motor 3 2 Pull the air swing link assembly to the left strongly to dismantle.
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Disassembly and Maintenance: Indoor Units 1 How to remove the Drain Hose Piping to the Left ESIE03–01 : Step Action 1 1. Pull out the drain hose attached on the rear right of the unit 2. Pull out the drain plug and drain socket attached on the rear left of the unit.. P Removing the front grille in accordance with "Removal of Front Grille" 3 Drain hose Drain socket 55 Drain plug P 2 The drain pan and bottom frame are designed as an integral type. Piping of Drain Hose at Left Side.
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ESIE03–01 Disassembly and Maintenance: Indoor Units Step Action 3 Insert the drain plug and drain socket into the right side of the unit with hexagonal pinwrench. 1 Hexagon wrench P 3 Insert the drain plug and socket securely as far as it will go.
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Disassembly and Maintenance: Indoor Units ESIE03–01 1 3 55 5–76 Part 5 – Disassembly and Maintenance
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ESIE03–01 Index 1 Numerics 4-way valve control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 2–46 3 A A1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A6 .
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ESIE03–01 1 D defrost control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 2–40 diameters, pipe connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 1–63 dimensions indoor units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 1–13 outdoor units . . . . . . .
PAGE 177
ESIE03–01 1 forced operating mode general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 2–7 forced thermostat OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 2–13 freeze-up function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 178
ESIE03–01 1 M MAIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . malfunctions indoor error codes overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . outdoor error codes overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . system error codes overview. . . . . . . . . . . . . . . . . . . .
PAGE 179
ESIE03–01 1 setting address for receiver of wireless remote controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 4–5 address for wireless remote controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 4–6 ceiling height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . k 4–15 centralized group No. . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ESIE03–01 1 3 4 5 vi Index