Service manual

24
11-2-2. Wired remote controller
11-2-3. Failure mode table (Wireless remote controller/Wired remote controller)
 Turn on the power.
 Press the [CHECK] button twice.
 Set refrigerant address with [TEMP] button
if system control is used.
 Press the [ON/OFF] button to stop the self-check.
°C
°C
SIMPLE
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF



 
 CHECK button
 Refrigerant address
 TEMP. button
 IC: Indoor unit
OC: Outdoor unit
 Check code
[Output pattern A] Errors detected by indoor unit
Beeper sounds/OPERATION INDICATOR
lamp blinks
Wireless remote controller
Check code
Wired remote controller
Symptom Remark
(Number of times)
1
P1
Intake sensor error
2
P2
P9
Pipe (TH2) sensor error
Pipe (TH5) sensor error
3
E6,E7
Indoor/outdoor unit communication error
4
P4
Drain sensor error/Float switch connector open
5
P5
Drain pump error
6
P6
Freezing/Overheating protection operation
7
EE
Communication error between indoor and outdoor units
8
P8
Pipe temperature error
9
E4, E5
Remote controller signal receiving error
10
–
11
–
–
–
–
–
–
–
12
Fb
Indoor unit control system error (memory error, etc.)
–
E1, E2
Remote controller control board error
–
E0, E3
Remote controller transmission error
[Output pattern B] Errors detected by unit other than indoor unit (outdoor unit, etc.)
Check code
Symptom Remark
1E9
Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)
2UP Compressor overcurrent interruption
3U3,U4 Open/short of outdoor unit thermistors
4UF Compressor overcurrent interruption (When compressor locked)
5U2 Abnormal high discharging temperature/insufficient refrigerant
6U1,Ud Abnormal high pressure (63H operated)/Overheating protection operation
7U5 Abnormal temperature of heat sink
8U8 Outdoor unit fan protection stop
9U6 Compressor overcurrent interruption/Abnormal of power module
10U7 Abnormality of super heat due to low discharge temperature
11
U9,UH
Abnormality such as overvoltage or voltage shortage and abnormal
synchronous signal to main circuit/Current sensor error
12
13
14Others Other errors
• If the beeper does not sound again after the initial
two beeps to confirm the self-check start signal was received and the OPERATION INDICATOR lamp
does not come on,
there are no error records.
• If the beeper sounds three times continuously “beep, beep, beep (0.4 + 0.4 + 0.4 sec.)” after the initial two beeps to confirm the self-check start signal
was received, the specified refrigerant address is incorrect.
For details, check the LED display
of the outdoor controller board.
• On wireless remote controller
The continuous buzzer sounds from receiving section of indoor unit.
Blink of operation lamp
• On wired remote controller
Check code displayed in the LCD.
Beeper sounds/OPERATION INDICATOR
lamp blinks
Wireless remote controller
Wired remote controller
(Number of times)
OCH472A