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1. INTRODUCTION ● A newly developed SAMSUNG side by side refrigerator in 2002 has the following characteristics. 1) Twin Cooling System ·The refrigerator and the freezer have two evaporators. Given this independent system, the freezer and the refrigerator are cooled individually as required and are, therefore, more efficient. Food odor from the refrigerator does not affect food in the freezer due to separate air flow circulation.
2. INSTALLATION 1) To protect refrigerator in movement Use padded hand truck as shown. If entrance width is less than 39〃, remove doors prior to installation and reattach doors according to procedure below. 2) Remove all protective tape and pad in refrigerators. Connect water lines and power cord. Adjust the clearance between the doors. 3) Set the temperature control to the temperature and wait for an hour. The refrigerator should get slightly chilled and the motor runs smoothly.
3. Nomenclature 2002 Models R S 25 33 SL / XAA Company Name COLOR ; SBS SW-SNOW WHITE SL-NOBLE STAIN BMF SW-SNOW WHITE SL-NOBLE GRAY OPTION ; SBS 33-GOOD 55-BETTER 77-BEST BMF 55-NO DISPENSER 77-DISPENSER Capacity ; CU.
4. Specifications ELECTRICAL SPECIFICATIONS Defrost Control From 24 to 32 hrs Thermo-Bimetal 54℉(off)/23℉(on) Defrost Thermistor(502AT) 50℉(off) Electrical Rating AC115V 60Hz, 4.8 Amps Maximum Current Leakage 0.25 mA Maximum Ground Path Resistance 0.1 Ohm Energy Consumption KWH/mo.
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Interior Views and Dimensions 6-2) Dimensions of Refrigerator(RS2533/2555/2577) (Inches) Beverage StationTM (RS2577) 8
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Refrigeration Cycle and Cool Air Circulation Route 7-2) Cool Air Circulation Refrigerator Freezer 10
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8. Mechanical Disassembly 8-1) Refrigerator Disassembly Control Panel Beverage StationTM 1. Insert a flat-blade screwdriver on the slot as shown, and unlock the tabs. 2. Disconnect the wire connector in the back of control panel. The beverage stationTM allows access to the refrigerator without opening the refrigerator door. 1. Open the door beverage stationTM 2. With a small flat-blade screwdriver,take out the rubbercap, then put it into the small hole and push the button inside. 3. Take off its door.
Mechanical Disassembly Refrigerator Door Light Switch The refrigerator has a door light switch located in the upper right corner for the refrigerator. 1. Use a small flat-blade screwdriver to unlock the locking tab and pull the switch out until the wire connector is visible. Plastic Drawers in Refrigerator Drawers are designed for storage of fruits, vegetables, and deli items. The drawers are located in the lower portion of the refrigerator. 1. Pull out the drawer as far as it goes. 2.
Mechanical Disassembly Water Filter The water filter is located in the upper right-hand corner of the refrigerator. The water filter filters water for the ice maker and the water dispenser. 1. Turn the water filter 1/2 turn counterclockwise and pull it down. 2. To install the filter, align the indication mark (unlock position) and push it up while turning 1/2 turn clockwise until the lock position is aligned. Do not over tighten. Upper Ductwork 1. Remove the screw caps (2) and screws (5). 2.
Mechanical Disassembly Evaporator in Refrigerator Refrigerator Thermistor Evaporator is located in the bottom of refrigerator. 1. Take off the ductwork in refrigerator. 2. Disconnect the wire connector.(Heater and Thermistor) 3. Desolder the capillary tube and the suction line from the evaporator. 4. Remove the evaporator. 5. With a file, score the capillary tube just upstream of the soldered point. Break off the soldered section to help prevent solder from plugging the tube during soldering. 6.
Mechanical Disassembly 8-2) Freezer Disassembly Door Bin in Freezer The door bins allow storage of perishable items. 1. Push the bin up and slide it out. Freezer Shelf The shelves slide out for easy access for frozen items. 1. Slide the shelf out until it reaches its stop. 2. Tilt down and slide it out of the compartment. Freezer Door Light Switch This switch is located in the left-hand portion of the freezer and sends a signal to the processor. 1.
Mechanical Disassembly top of the liner, and slide the ice maker in. 5. Tighten the screws (2) of the ice maker support. Auger Motor Case This shelf is designed to support the ice maker ＆ ice dispensed and Xtra SpaceTM. 1. Remove the Xtra SpaceTM cover to push it down near the partition. 2. Slide the partition out. 3. Remove the screws (2) on the bottom front of the case. 4. Slide out the case while disconnecting the wire connect. The ice maker is located inside of the ice dispenser assembly. 1.
Mechanical Disassembly Freezer Light Upper Ductwork 1. Remove the screw cap and screw. 2. Slide the upper fan ductwork out while disconnecting the wire connector (Lamp and Thermistor). The freezer light is located in the bottom of the auger motor case. The light is covered by an opaque cover. 1. Remove the screw and the light cover. Evaporator Cover in Freezer 1. Pull out the screw caps and remove screws (6). 2. Remove the ductwork of the evaporator fan in the direction of the arrow as shown. 3.
Mechanical Disassembly Evaporator in Freezer Evaporator is located in the bottom of freezer to produce cold air driven across the evaporator coils. 1. Take off the ductwork in Freezer. 2. Disconnect the wire connector (Heater, Bimental, and Thermistor). 3. Desolder the inlet and outlet tubes. 4. Remove the evaporator. 5. Take the same steps to seal the system as mentioned earlier. Freezer Thermistor Ambient Thermistor The ambient thermistor is located inside the upper hinge cover.
Mechanical Disassembly 8-3) Machine Compartment Disassembly 3. Disconnect water tubes (3). Machine Compartment ＆ Electric Box 1. Disconnect the power cord of the refrigerator. 2. Remove the fixed screws (6) of compressor cover. Condenser Fan 3. Slide up and take off the compressor cover to see the machine compartment. The condenser Fan is located in the middle of machine compartment. It cools down the subcondenser and the compressor. 1. Disconnect the condenser fan wire. 2.
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9. Operation Function 9-1) Digital Panel for RS2533 for RS2555 RS2577 9-2) Temperature Control Function When the system power is initally engaged, the default set temperature are -4℉ for the freezer and 38℉ for the set refrigerator, respectively. The numbers shown on the digital display panel stand for the actual compartments temperatures. When the compartment temperatures go down, so do the numbers on the display panel, and finally they reach the set temperatures.
Operation Function 9-3) Power Freeze and Power Cool Functions Select the Power Freeze or Power Cool buttons separately. These buttons are toggled ON and OFF and the indicators as well. Although you select Power Freeze or Power Cool, the set temperatures in the freezer and refrigerator are not changed. ● The set temperatures for the compartments can be changed while these functions are in use.
Operation Function 9-5) Ice & Water Dispenser Function ● Among several ice-maker functions, the ice extraction function is performed by mechanical system. Only the relay control for a cubed-ice dispensing and the SSR control for the ice chute door are performed electronically. 1) Select Cubed/Crushed/Ice-off function 1-1) The Ice Type button selects Cubed/Crushed/Ice-off options in sequence. 1-2) A default setting is Cubed option.
Operation Function 1) Select function 1-1) Using Select button, Cool, Chill(30℉), and Soft Freeze(23℉) options can be selected in sequence. Cool option maintains a set temperature of the refrigerator. 2) Quick Cool function 2-1) If the Quick Cool is selected, LEDs will flash 60 and Min. The count will be decreased in every minute. 2-2) To cancel this function, press Quick Cool button again or Thaw button or Select button. Otherwise, it will be terminated 60 minutes later automatically.
Operation Function 2) Preparation of Ice-maker 2-1) Connect the water line to the water supply valve of refrigerator to supply water. (See how to connect a water supply line in the owner’s manual.) 2-2) Push the bucket back fully so that the guide-ice of ice maker should not touch the back of bucket. (If the back of bucket touches the guide-ice of ice maker, the ice maker will not make ice any more because of a ice full signal.
Operation Function 2) Water Supply function 2-1) When the ice tray is levelled again after ejecting ice, the water solenoid value will be controlled to supply water by time check basis. (See the “Time to supply water” Table) 3) Ice production 3-1) After 90 minutes pass from the water supply, the control board will check the temperature. 3-2) If the sensor reads the temperature lower than 19℉ for more than 5 minutes, than the ice production process is completed.
Operation Function 9-11) Forced Operation Function (Pull-down / R-Defrost / R.F-Defrost / Cancellation) This function enables a pull-down mode, a defrost mode for the refrigerator only, a defrost mode for the freezer and the refrigerator at the same time, and a cancellation of this function. ● Press Power Freeze and Fridge Temp. buttons for 8 seconds simultameously to get in the ready mode for a forced operation. ● The display panel will return to normal after 20 seconds in the ready mode.
Operation Function 9-12) Sound Function 1) Sound function 1-1) To make sure a command input, whenever a button is pressed, a “ding-dong” sounds. 1-2) When two or more buttons are pressed simultaneously or if a wrong button is pressed, there is no sound. 2) Door Open Alarm 2-1) When the doors remain open for 2 minutes, there are 10 times beeps. 2-2) If the doors continue to remain open more than 2 minutes, the additional 10 beeps interval will change to 1 minute.
Operation Function Self-diagnostics check list NO ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ⑪ Error ICE-MAKER SENSOR R-SENSOR R-DEF-SENSOR R-FAN ERROR I/M function error CoolSelect ZoneTM SENSOR EXIT-SENSOR F-SENSOR F-DEF ERROR F-FAN ERROR C-FAN ERROR If any LEDs blink, the corresponding sensors and components must be checked for an error.
Operation Function 9-15) Load Operation Check Function 1) In the normal operation, press Power Freeze and Power Cool buttons simultaneously for 6 second, then the display panel will blink for 2 seconds. 2) Press Fridge Temp. button ⓐ to get into this check mode with an audible tone. 3) Each illuminating LED segment stands for the component which has an ouput signal from the control board. 4) This mode will terminate automatically after 30 seconds.
Operation Function 1) Initially, all products set the code, “0” and press Power Cool or Fridge Temp. to increase or decrease # of Reference. 2) To increase or decrease #of Code,press the Power Freeze or Freezer Temp. so that it can be adjusted such as the temperatures of freezer,refrigerator,Ice maker,and CoolSelect ZoneTM,and the quantity of water supply. 3) After 20 seconds from adjustment, a new setting will be stored in EEPROM and return to the normal display.
Operation Function Example) If you are lowering the current temperature of the freezer by －6.0℉ 2) Shift the refrigerator temperature sensor Reference Value Code 0 1 2 3 4 5 6 7 1 Temp. shift 0 －1.0℉ －2.0℉ －3.0℉ －4.0℉ －5.0℉ －6.0℉ －7.0℉ Code Temp. shift 8 9 10 11 12 13 14 15 1.0℉ 2.0℉ 3.0℉ 4.0℉ 5.0℉ 6.0℉ 7.0℉ 8.0℉ Example) If you are raising the current temperature of the refrigerator by +3.
Operation Function ■The following options is limited to a model with the Ice Maker. 5) Shift the CoolSelect ZoneTM temperature sensor. 3) Adjust the time to supply water for the ice maker Reference Value Reference Value 3 Time to supply water Code CoolSelect ZoneTM temperature sensor 0 5 sec 0 1 4 sec 1 0℉ -1.
11. Diagnostics 11-1) If power is not ON Caution! To check the main PCB, please apply descriptions of operation and references in the manual. At the power of main PCB, the 115V power and a high-voltage over DC 170V occur. Please take care of yourself on repair and measurement. Start Is 115V AC fuse down? Is power 115V both terminals of CN10? Is fuse on main PCB down? Is DC 170V impressed to both terminals of BD1? YES NO Check the exchange of fuse and disconnection cause.
Diagnostics 11-2) If the compressor and cooling fan motor don’t work normally Start NO Did 5 min pass after COMP. OFF? YES YES Does compressor work with forced operation? Did buzzer sound on forced operation? (Check certainly after forced start.) NO Apply Ref.4 Is MICOM No.18 High?(5V) Exchange MICOM and PCB. NO NO Check after a lapse of 5 min. Is freezer sensor normal? YES YES Is the temp. sense of main PCB Normal? Is the voltage of IC03 pin No. 14 between 0-1V? YES Exchange and repair IC03.
Diagnostics 11-3) If defrost function Start Is F, R defrosting sensor by self-diagnosis normal? NO Exchange and troubleshoot the corresponding sensor. YES NO Is F, R Room defrosting heater normal? YES See Ref. 3: ‘Check load’ in the manual. Is temp. of the defrosting sensor below 23℉? Make decision on the basis of ref. 4 and 6 in the manual. NO Check temp. fuse, breaking of heater wire, contact of wire and so on. Run forced operation for a specified period.
Diagnostics 11-4) If there is a trouble with self-diagnosis - Error of sensor can be seen on the front display of refrigerator. If power is impressed to refrigerator first, an failure of sensor is found. The refrigerator will stop working and display(blink) the region of trouble-occurred sensor repetitively. - Even if sensor has failure during the operation, the refrigerator will not stop working but can run the normal cooling operation because of being operated in the Emergency Operation mode.
Diagnostics 11-5) If alarm sound 1) If “Ding-Dong” sounds continuously Start Yes Isn’t the door opened minutely? No Isn’t water penetrated into the door S/W? NO Remove causes after comprehending the conditions of interference by door gasket, food etc. YES Freezer door MICOM No. 43, Fridge door MICOM No. 44 – Regular voltage are 5V to Open : 0V to Close. Is the input voltage of main No. 43 and 44 changed at door-open, door-close? Exchange the door S/W.
Diagnostics 3) Without sound of buzzer operation Start Does it sound ‘Ding-Dong’if you press a button on front panel? YES NO Does it make a sound of ‘door-open’ alarm when you are opening the door of freezer or fridge more than 2 min? Main PCB is normal; buzzer normal. YES NO Is the bent or go-out of the buzzer in the main PCB? YES NO Refer the description of Test function in the manual for the Forced operation. Are signals coming out of MICOM No.
Diagnostics 11-6) If the panel PCB is not working normally: 1) Where lighting of the panel PCB is disabled, or only some lamps are disabled. Start See Ref. 1: ‘View of the connection cabinet-door for the wire assembly’ in the manual. Is the connector of upper hinge cover inserted normally? YES NO Is the main PCB connector(CN50) inserted normally? NO Reinsert the connector. Troubleshoot a poor contact. Reinsert the connector in the main PCB.
Diagnostics 11-7) If fan doesn’t work: Reference The refrigerator has been applied with the BLDC fan motor. For RS2533, R room Fan is AC motor used. The BLDC motor is driven by DC 8-12V. Under the normal condition of COMP ON, it is operated together with F-FAN motor. With operation of the CoolSelect ZoneTM function, the F-Fan motor may do not work. If the door is opened and closed once at a high ambient temperature, the BLDC motor would be operated after a 1-minute or longer delay.
Diagnostics 11-8) If CoolSelect ZoneTM isn’t operated normally (RS2555, RS2577) 1) If the lamp of CoolSelect ZoneTM is not lit. Start Is the connector of CoolSelect ZoneTM inserted correctly in the refrigerator? NO YES Is the connector of main PCB (CN51) inserted correctly? NO YES Is the connector of CoolSelect ZoneTM panel PCB inserted ? If the Panel key isn’ t selected: NO YES Is lighting operated normally in the exchange of CoolSelect ZoneTM panel PCB? YES NO 1.
Diagnostics 11-9) If the lamps of freezer / refrigerator does not light. Caution! 1. When you are exchanging the lamp of freezer, please exchange or troubleshoot it with the power OFF to avoid an electric shock. 2. Please keep in mind you do not get burnt by the excessive heating of an incandescent light bulb. Start YES Is the inside lamp filament cut? How to check : Separate the door S/W and measure its resistance with a measure.
Diagnostics 11-10) If the solenoid in the ice-chute cover doesn’t work : Preliminary check 1) Check if the solenoid is unconditionally operated for 0.3 sec, independent of the Open/Close condition of cover ice-route, after a lapse of about 5 seconds from power ON. (Before installation, the cancellation of cover ice-route open is enabled.) 2) Check if the connector in upper hinge section is hook-up correctly. Start YES Is the S/N(solenoid) for 0.
Diagnostics 11-11) If Crushed Ice/Cubed Ice doesn’t work properly: The close condition on operation is subject to the freezer door. Start NO Is ice ejected? YES Does ice in the ice tray exist ? NO YES 1) Check the ice-ejector S/W. 2) Check the door S/W. 3) Check the ice moving motor. 4) Check the cut of wire in the Ice moving Motor section. Do you see Ice Stop on the digital panel? YES 1) Check the water hose for folding or fastening.
13. Safety Instructions on Service ●Unplug the refrigerator before making any repair or any replacement. Avoid the electric shock. ●Use the rated components on the replacement. Check the correct model number, rated voltage, rated current, operating temperature and so on. ●On repair, be sure that the wires such as harness are bundled tightly and are not exposed by water. Bundle wires tightly in order not to be detached by the external force.
Appendix Ⅰ (Reference for circuit diagnostics) Ref.1) Wire connector on the cabinet door. Ref. 2) How to check relay failure Disconnect the connector of the main PCB CN70 and CN71, then check the follows : 1. Measure the voltage at both terminals of a coil and determine if the relay is working. 2. Measure the voltage at both terminals of a trigger and determine if SSR is working. 3.
Appendix Ⅰ (Reference for circuit diagnostics) Ref. 3) Check a load Unplug the powercord and disconnect the main PCB CN70 and CN71, the measure the follows : 1. As shown in table below, measure the resistance between terminals, check load trouble and wire connection error. 2. The diagram of circuit was drawn based on the maximum load. When a repair is needed, see the electric wiring diagram on the back of refrigerator to troubleshoot the corresponding model. 3. For safety, you must turn the power off.
Appendix Ⅰ (Reference for circuit diagnostics) Ref. 4) Check sensors Disconnect the connector from the Main PCB, than measure the resistance of the following sensors. 1. Check the resistance the Freezer sensor cn30 between the no. 2 and 3. 2. Check the resistance the Fridge Room sensor cn30 between the no. 6 and 7. 3. Check the resistance the F Defrosting sensor cn30 between the no. 2 and 4. 4. Check the resistance the R Defrosting sensor cn30 between the no. 6 and 8. 5. Check the resistance between the no.
Appendix Ⅰ (Reference for circuit diagnostics) Ref. 6) Table of temperature sensor according to resistance and voltage conversion. The input voltage to the MICOM PORT could be different by a hardware. This is a table based on the voltage using the 10kohm-F. MICOM PORT voltage when the sensor is open: about DC 5V(Vcc LEVEL) MICOM PORT voltage when the sensor is shorted: about DC 0V(Ground LEVEL) Temp.(℉) Resistance(㏀) -43.6 -41.8 -40.0 -38.2 -36.4 -34.6 -32.8 -31 -29.2 -27.4 -25.6 -23.8 -22.0 -20.2 -18.4 16.
Appendix Ⅰ (Reference for circuit diagnostics) Ref. 7) Service part lists of each circuit board. NO CODE-NO PART NAME SPECIFCATION Q’TY 1 DA41-00104E Main PCB ASS’Y Dispenser with CoolSelect ZoneTM 1 2 DA41-00134A Main PCB ASS’Y Dispenser 1 3 DA41-00105C PANEL PCB ASS’Y Dispenser with CoolSelect ZoneTM 1 4 DA41-00105D PANEL PCB ASS’Y Dispenser 1 5 DA32-00006B R-DEFROST Sensor 502AT, PX-41C 1 6 DA32-10109V Ambient Temp. Sensor 502AT, PX-41C 1 7 DA32-10109W F-Temp.
Appendix Ⅱ (RS2533 for Circuit Diagram) 53
Appendix Ⅱ (RS2555 ＆RS2577 for Circuit Diagram) 54
