Haier RMD52HLCS0, Service Manual

Page 1: ...or use by the general public It dose not contain warnings and cautions to advice non technical individuals of potential dangers in attempting to service a product Product powered by electricity should by serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in ser...

Page 2: ...nel 10 4 2 Lock Unlock setting 10 4 3 Intelligence Holiday function settings 10 4 4 Quick cooling function setting 11 4 5 Quick freezing function setting 11 4 6 Temperature setting and adjustment 11 4 7 Door alarm 12 4 8 Power off memory 12 Chapter 5 Control principal and related test functions 13 5 1 Refrigerator s temperature control introduction 13 5 2 Defrost control 13 5 3 Sensor s position a...

Page 3: ...pair any parts of the evaporator so that scratches by the sharp fins can be avoided 8 If there is a breakdown with the refrigeration system please surrender the machine to the service center else the leaked refrigerant may pollute the atmosphere 9 The refrigerator use AC of 220V with a frequency of 50Hz 10 A big fluctuation of voltage exceed the range 187 242V may cause a start failure of the refr...

Page 4: ...each icon is described in the table below Note A note provides information that is not indispensable Caution A caution is used when there is danger through incorrect manipulation may damage equipment loose data get an unexpected result or has to restart part of a procedure Warning A warning is used when there is danger of personal injury Reference A reference guides to find additional information ...

Page 5: ...ay LED Temperature range from to C Fridge 1 9 C freezer 24 14 C Super Cooling Fridge YES Super Freezing Freezer YES Stand by function Holidays YES 4 Basics dates Voltage frequency 220 50 Input power mains fuse intensity W A 200 1 8 Length of cable incl plug cm 349 5 Packing dimensions Unit dimensions without handle H W D mm 1790 908 655 Net weight kg 98 Packing dimensions H W D mm 1890 980 730 Gro...

Page 6: ...2 3 External views ...

Page 7: ...wer Cable Disassembly Non professionals do not remove the main control board including open the control box 1 Check the power supply cable and ensure power off to disassemble 2 open the main control box by using a plum screwdriver then you can see all the refrigerator control board 3 pull cable plug off on the refrigerator main control board 4 replace the damaged main control board 5 cover the mai...

Page 8: ...according to the direction of 3 4 Adjust Bottle and clean 1 Lift up the bottle according to the direction of then seize bottle s both sides to pull out according to the direction of 2 You can install bottle according to the reserve operation after cleaning or you can adjust the bottle s height according to the position of food 3 5 Freezer air duct cover assembly and disassembly 1 First remove the ...

Page 9: ...p air duct cover 3 Take out the freezer bottom air duct cover on the interface of top and bottom air duct cover in the red zone 3 5 Refrigerator air duct cover assembly and disassembly Take out the screw in the red zone by using cross screwdriver then seize the air duct cover plate to pull out ...

Page 10: ... it s locked state if you intend to make such operations 4 3 Intelligence Holiday function settings In unlocked state Intelligent icon D will be illuminated upon a press on Intelligent function adjustment button J and the refrigerator will enter intelligent state in intelligent state Intelligent icon D will turn off upon a press on Intelligent function adjustment button J and the refrigerator will...

Page 11: ...uick freezing function is designed to keep the nutrition of food in the freezing chamber It can freeze the food in the shortest possible time If you intend to freeze a lot of food at a time it s advised to set the freezing function 12h in advance and don t put the food in until the temperature turns lower in the freezing chamber At this moment the freezing speed is accelerated in the freezing cham...

Page 12: ...ked state it s not allowed to adjust the setting temperature in the freezing chamber If you intend to make adjustment in such state the quick freezing intelligent or lock icon will blink and a warning tone will be given to indicate that the setting temperature in the freezing temperature cannot be adjusted in the current state 4 7 Door alarm When the door is open or not closed properly for a long ...

Page 13: ...Hr enter the state of defrosting fridge and freezer defrosting frozen at a time And do statistic and judgment according to the running time of compressor and refrigeration frozen door switch s opening time then defrosting fridge and freezer separately or simultaneously Under normal working condition Defrosting cycle can change by defrosting control change defrosting cycle and the door opening and ...

Page 14: ...sembly Refrigerator sensor R SNR Center of refrigerator air duct assembly Freezer defrosting sensor RD SNR On the freezer evaporator Environment temperature sensor RT SNR Under the refrigerator hinge box Notes The parameters of refrigerator sensor and environment temperature sensor are the same and can be general ...

Page 15: ...ime continue to click Smart for five times In T4 mode click unlock once exit after 3 second within 3s Not memory after power off 5 Fine tuning Lock Press Freezer For a long time continue to click Refrigerator for five times The same with enter operation within 3s Not memory after power off 6 Quick cooling Unlock Press Refrigerator For a long time The same with enter operation Long by 3s Memory aft...

Page 16: ... lock state Any single operation is invalid 13 Main control panel 0061800283A Mechanical key SW1 is TEST key which can directly enter T mode Click once to enter T1 click twice to enter T2 enter T1 to T4 by recycle Mechanical key SW2 is shorten time key Click and buzzer ring once shorten minutes Press once for 3s and buzzer ring once shorten 30 minutes ...

Page 17: ...Chapter 6 System flow principle 6 1 System flow scenograph 6 2 System flow chart ...

Page 18: ...N 1 N 11 GND 10 FDOOR 9 GND 8 DFSNR 7 GND 6 FSNR 5 FFANV 4 FFANG 3 FFANF 2 FLED 1 12V 10 TX 9 RX 8 5V 7 GND 6 RBUE 5 RWTE 4 RYOW 3 RRED 2 RHAT 1 12V 9 12V 8 RLED 7 GND 6 RTSNR 5 RSNR 4 GND 3 RDOOR 2 GND 1 BDOOR 3 CFANV 2 CFANG 1 CFANF Frz Door Switch 5V Ref Sensor 5V Ambient Sensor 5V Ref Door Switch 5V Rapid Detection Interface CN1 CN2 CN3 CN4 CN5 CN6 CN8 CN10 CN11 CN12 CN13 Fuse 1 Compressor Red...

Page 19: ...7 2 Brief principle diagram ...

Page 20: ... position and assembly whether cold air blowing around if that is not tightly sealed 2 Take fridge electric air outlet apart repeatedly switching freezer detect whether air door can freely switch on off and close closely 3 If the Department does not move you can test damper wiring terminal position and the main control panel and check every line s conducting state according to the color 4 If line ...

Page 21: ... defrosting sensor to sense the temperature is not in time you can move defrosting sensor s location down to about 10cm Note displaying Ed means defrosting system is bad and not means certain unit is bad but as long as the refrigerator Power down and power on the fault code disappeared Display panel display normally but do not means repaired If you do not solve the problem it will show again after...

Page 22: ...ef Temp ar F2 Rs 0 094 or Rs 235 T 117 3 or T 55 9 Refrigerator 2 Ref sensor Ref R1 fault Ref Temp ar F3 Rs 0 094 or Rs 235 T 117 3 or T 55 9 Refrigerator 3 Frz sensor fault Frz Temp areF4 Rs 0 297 or Rs 750 T 75 or T 70 17 Freezer 4 Frz defrosting sensor fault Frz Temp areF6 Rs 0 297 or Rs 750 T 75 or T 70 17 Freezer 5 Communication fau Ref Temp ar E0 No communicate between display panel and main...

Page 23: ...ton then will be present T3 T4 back to normal display control and escape from test mode MODE WORKING CONDITION Force start 1 R and F display areas T1 T1 2 Compressor start work 3 Freezer FAN work with high votage Cooling FAN work with high votage 4 defrost heater off 5 REF air damper open Forced defrost 1 R and F display areas T2 T2 2 Enter defrost mode compressor OFF Freezer Cooloing FAN OFF Defr...