mabe RMB32YLCS0 Service Manual Download Page 27

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10-2. Symptom: no shutdown

No shutdown

Whether refrigerator keeps

cool

YES

Maintain by pressing “no refrigeration

Maintain by pressing “not enough refrigeration”

Adjust and guide user correctly

Not enough

refrigeration

1. Too high ambient

temperature and close to

heat source

2. Open the door

frequently or lots of fresh

foods

Repair sensor

Summary of Contents for RMB32YLCS0

Page 1: ...t designed for 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 r...

Page 2: ...rinciple diagram 14 5 2 Main control Chart 15 5 3 Connectors location on PCB 16 Chapter 6 Main Function Operating principle 17 6 1 Defrost system 17 Chapter 7 Control and display system 19 7 1 Control and display panel 19 7 2 Function adjustment 19 Chapter 8 Quick check and Self test model 21 8 1 Checking method of fault code 21 8 2 Test mode 21 8 3 Demo mode 22 8 4 Sensor layout plan 23 Chapter 9...

Page 3: ...repair 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 re...

Page 4: ...per 24 h kWh 24 h 0 83 Max storage time by power failure Freezer h 13 Kind of coolant and weight R134a R600a R600a 54g Key features Cooling system K Compressor A Absorbtion K Number of compressor s n 1 Defrosting Fridge Freezer M manual A automatic A A Control system E Electronic M Mechanical E NO FROST Fridge Freezer Y Ventilated Fridge only Y Antibacteria system N Basics datas Unit dimensions wi...

Page 5: ...4 4 2 2 External views ...

Page 6: ...gy saving As warm air can t easily enter into the storage area when opening the door 2 Cool wind but no frost adopting fully air cooled refrigeration system deep cooling and quick freezing 3 LED display adopting dynamic LED to display the operational situation of refrigerator 4 LED light guide plate illumination adopting the technique of light guide plate illumination the light is soft even bright...

Page 7: ... fixed by snap joint and its location is shown in the figure Pull out the terminal of the left lamp and remove the lamp 3 1 2 Disassembly of freezer air duct Unscrew two bolts from the freezer air duct with a cross screwdriver As shown in the figure pull out the two terminals those are connected to the freezer air duct roll out the freezer air duct from below ...

Page 8: ...f freezer fan Unscrew the bolts with a cross screwdriver Gently unclench the upper and lower cover plates of the freezer air duct Take the fan cable out Unscrew three bolts with a cross screwdriver Disassemble the freezer fan ...

Page 9: ...ll white cover with a screwdriver as shown in the figure Follow the arrow direction in the figure and slightly pull out the air damper a little and turn it counterclockwise a little until the connector can be saw Disconnect the connector and pull out the air damper ...

Page 10: ... Disassembly of refrigerator air duct 3 1 6 Unscrew the bolts with a cross screwdriver Take out the refrigerator air duct as shown in the figure Follow the arrow direction in the figure and pull out the terminal ...

Page 11: ...10 10 Door Reversibility ...

Page 12: ...11 11 ...

Page 13: ...frigeration flow chart The refrigeration system of direct cooling single system cooler belongs to the category of a single temperature and single control refrigerating system with one evaporators and is controlled by a single temperature control ...

Page 14: ...13 13 4 2 Refrigerating cycle perspective ...

Page 15: ...14 14 Chapter 5 Circuit diagram 5 1 Brief principle diagram ...

Page 16: ...Pu W Y W P O O Y B R 12 11 10 9 8 7 6 3 4 5 1 2 3 NL 5 6 L N D HTR BC HTR N Bl Bl 4 R Br LED 12V GND 5V Switch GND Defrost Sensor Freezer Sensor Fridge Sensor Ambient Sensor Fuse 1 Fuse 2 Defrost Heater L R Bl N Main PCB 0061800486B W Bl Y R Bl Br NL G Bl Br W B Y R GND IN OUT PWM AMP 917788 1 PWM 12V 1 2 3 4 5 6 7 8 9 10 CN3 UV GND Fan Motor FG GND VS Y G Inverter Panel O W P N L T R S P O W Comp...

Page 17: ...16 16 5 3 Connectors location on PCB Do not need to break ...

Page 18: ...st fuse or defrost heater and cabinet if the connection terminal falls off or decline poor contact will happen 3 Defrost sensor which locates at the top 6 1 3 defrost rule Ambient temperature Comp ON Time Condition AT 14 Comp ON Time 7h Comp continue on 2 cycle R OFF 7 Comp ON Time 12h R Door ON 180s Comp ON Time 3h Comp ON OFF R SNR R Set OFF Comp ON Time 12h R Door ON 60s Comp ON Time 3h R Dampe...

Page 19: ...R Damper ON 90min S Damper ON 120min S Set 15 F SNR F Set ON 7 Comp ON OFF R SNR R Set OFF Comp On Time 18h Comp On Time 18h then defrost AT 40 Comp ON Time 7h Comp continue on 2 cycle R OFF Comp On Time 7h Comp ON OFF R SNR R Set OFF 点 Comp On Time 25h Comp On Time 25h then defrost ...

Page 20: ...19 19 Chapter 7 Control and display system 7 1 Control and display panel 7 2 Function adjustment 7 2 1 First The panel is unlocked Touch the button D for 3 seconds ...

Page 21: ...20 20 7 2 2 Adjust the fridge temperature Press the button A to adjust 7 2 3 Adjust the freezer temperature Press the button B to adjust ...

Page 22: ...indicator 2 will flashing Ambient temperature sensor fault 2 Temperature indicator 2 3 4 will flashing Refrigerator sensor fault 3 Temperature indicator 2 3 4 5 will flashing Freezer sensor fault 5 Temperature indicator 2 3 4 5 6 8 will flashing Freezer defrosting sensor fault 6 Temperature indicator 16 will flashing Communication fault between PCB and display panel 7 Temperature indicator 16 17 w...

Page 23: ... the exit of 8 D SNR the longest 90min forced exit D SNR failure the longest exit 30min Hand force exit exit immediately 8 3 Demo mode When opening the refrigerator s door under locking condition press and hold the Fridge button for 10 seconds to enter refrigerator exhibition function ...

Page 24: ...23 23 8 4 Sensor layout plan Fridge storage temperature sensor Freezer storage temperature sensor Defrosting temperature sensor Ouside temperature sensor ...

Page 25: ...in parameters Picture 1 Compressor VEMT9C Power 220 240 EER 1 73 1 85 Refrigerating capacity 102 280W working current 0 56 2 1 the main winding resistance at 25 19 5Ω 2 Frz Fan FBA12J12M Volt 12V Current 0 23A 3 Frz Defrost heater Volt 230V Power 200W 4 ELECTRIC AIR DR DC 12V ...

Page 26: ...utdown for 10 minutes and check to see whether compressor is operating No Overhauling by pressing not starting Whether compressor can keep running all the time and Yes Leakage of refrigerating fluid and maintenance and refilling Ice or filth blockage and refilling after replacing filter Yes No ...

Page 27: ...S No YES NO YES Maintain by pressing no refrigeration Maintain by pressing not enough refrigeration Adjust and guide user correctly Not enough refrigeration 1 Too high ambient temperature and close to heat source 2 Open the door frequently or lots of fresh foods Repair sensor NO ...

Page 28: ...oor seal and cool leakage Whether gear is set too high Whether condensate fan is not operating Whether there is leakage of refrigerating fluid Check parameters of main control panel Yes Yes Yes Yes No No No No Replace door Adjust and guide user correctly Check condensate fan Repair ...

Page 29: ...28 28 10 4 Symptom No starting when powering on ...

Page 30: ...29 29 10 5 Symptom no defrosting No defrosting Whether fuse has been protected Damage turnoff of heater fuse Under forced defrosting mode T2 Replace main control ...

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