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6.7 Door switch

Load voltage:DC24V

Load current:0.05A

6.7.1 Basic parameters

1.Check the connecting wiring of door switch is well or not,repair if it
is broken.Refrigerator door switch corresponding pin No.4 and No.6
on CN4 connector of mainboard,freezer door switch corresponding
pin No.4 and No.7,as the drawing below.

2.Check the magnet on the door is dropped out or not.

3.Normally,when the door is closed,the two pins of door switch should
be short circuit;When the door is open,the two pins should be open
circuit.If the result is not abnormal,change the door switch.

4.If all above is OK,change the mainboard.

6.7.3 Checking method

6.Circuit and checking

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Содержание BCD-535 W

Страница 1: ...Refrigerator Service Manual M odel RC 70 W S4 S BC D 535 W...

Страница 2: ...efrigerator compartment 6 Circuit and checking 6 1 Circuit diagram 6 4 Fan motor 7 Cooling system repairing 7 2 Summary of repair 7 3 Regulation of repair 7 4 Practical work of repair 7 5 Brazing refe...

Страница 3: ...trical components when replacing them 7 Make sure the hook is correctly engaged Remove dust and foreign materials from the housing and connecting parts 8 Do not fray damage machine heavily bend pull o...

Страница 4: ...e 2 Appearance and structure Note Due to unceasing modification of our products your refrigerator may be slightly differant from this Services Manual but its functions and using methods remain the sam...

Страница 5: ...2 2 Wind channel structure 4 2 Appearance and structure Freezer Refrigerator Fan Wind input Air return...

Страница 6: ...2 2 Wind channel structure 5 2 Appearance and structure Freezer Fan Refrigerator...

Страница 7: ...2 2 Evaporator structure 6 2 Appearance and structure Sensor Evaporator Fuse Heater Accumulator Capillary...

Страница 8: ...7 2 2 Compressor room structure 2 Appearance and structure Dry filter Power cord Compressor Evaporation dish Water valve...

Страница 9: ...ty freezer compartment L 168 Energy efficiency class A Climate class SN 10 32 C N 16 32 C ST 16 38 C T 16 43 C SN N ST T Refigerator room temperature C 2 8 Freezer room temperature C 24 14 Freezer com...

Страница 10: ...ons have been touched and the doors are closed the backlighting will turn off after 60 seconds Caution When you set a temperature you set an average temperature for the whole refrigerator cabinet T em...

Страница 11: ...10 4 Operation and functions...

Страница 12: ...4 Operation and functions 11...

Страница 13: ...4 Operation and functions 12...

Страница 14: ...4 2 Using the appliance 4 Operation and functions 13...

Страница 15: ...4 Operation and functions 14...

Страница 16: ...4 Operation and functions 15...

Страница 17: ...4 Operation and functions 16 207 689 K...

Страница 18: ...vironment temperature it will enter defrost mode automatically 4 3 2 Defrost flow Compressor stops Evaporator fan stops Damper stops Defrost heater works Evaporator temperature reach the setting point...

Страница 19: ...same time for 5 seconds it will enter compulsory defrost mode after a long buzzing sound Compressor stops Evaporator fan stops Damper stops Defrost heater works 90 seconds later until evaporator temp...

Страница 20: ...tions E4 Freezer temperature display area Defrost sensor malfunctions E0 Freezer temperature display area Environment sensor malfunctions E9 Freezer temperature display area Ice maker sensor malfuncti...

Страница 21: ...ror display 4 Operation and functions 4 5 2 Checking method 4 5 2 1 Environment sensor error Start Change the display panel Is the sensor connecting wiring open circuit or short circuit Repair the wir...

Страница 22: ...rt Change the mainboard Is the sensor connecting wiring open circuit or short circuit Repair the wiring Is the sensor OK Change the sensor Does the sensor connector plug well Plug the terminal well 4...

Страница 23: ...n No 8 and No 12 on CN5 connector of mainboard 2 Freezer sensor corresponding pin No 9 and No 12 on CN5 connector of mainboard 3 Evaporator sensor corresponding pin No 10 and No 12 on CN5 connector of...

Страница 24: ...of mainboard as the drawing below and repair if it is broken 2 Input 12V power to pin No 7 and No 8 on CN4 connector of mainboard check the ice maker can positive rotating Red wiring connect power whi...

Страница 25: ...e display panel corresponding pin No 5 8 on CN7 connector of the mainboard as the drawing below Start Change the mainboard Is the connecting wiring between display panel and mainboard broken Repair th...

Страница 26: ...al l Compressor running noises l Air movement noise from the small fan motor in the freezer compartment or other compartments l Gurgling sound similar to water boiling l Popping noise during automatic...

Страница 27: ...cabinet may not be properly leveled or the draining spout underneath the top of the compressor depot may not be properly positioned to direct water into this pan or the water spout is blocked or the w...

Страница 28: ...and clear of any obstruction l Is the water tank frozen because the refrigerator temperature is too low Try selecting a warmer setting on the display panel l Check if the filter is properly installed...

Страница 29: ...r cord plugged into the power outlet Are mainboard terminals plugged well Is the compressor OK Plug the power cord well Change the mainboard Change the compressor Start Is mainboard output power OK Pl...

Страница 30: ...as gap Change the door gasket Reassemble the door Is the door hanged down Is food palced too close to the sensor or cold air spout Explain not to place food too close to sensor or cold air spout Start...

Страница 31: ...se OK Change the Temp fuse Is defrost heater OK Is there ice blockage on evaporator Do doors open frequently Explain not to open doors frequently Counsel to use colder temperature setting Change the d...

Страница 32: ...Is freezer compartment OK Refer to 5 3 1 chapter Change the door gasket Is the door hanged down Reassemble the door Explain not to place food too close to sensor or cold air spout Explain not to open...

Страница 33: ...appliance too close to heat sources Is watery or hot food stored in the cabinet Wipe out dew on the louver surface and run the refrigerator again 5 4 Thick frost in freezer compartment Start Reassembl...

Страница 34: ...oes the door open too frequently Is the appliance too close to heat sources Is watery or hot food stored in the cabinet Advise to cool down hot food and seal watery food well before storing Make enoug...

Страница 35: ...e Is the damper OK Change the damper Is the sensor OK Change the sensor Check the sensor connection and repair Counsel to use warmer temperature setting Start Is refrigerator temperature setting too c...

Страница 36: ...35 5 Troubleshooting 5 7 Breaking of light Is the light disconnected or broken Is the door switch OK Change the door switch Check the door switch connection and repair Start Change the light...

Страница 37: ...s the appliance leveled Level the appliance by adjusting the bottom feet Are the adjustable bottom feet broken Change the adjustable bottom feet Is the noise from compressor itself Add a rubber absorb...

Страница 38: ...mp starts stops Is there sound from freezer compartment when compressor s running Fasten the evaporator Start Is there water flowing or hiss sound from the appliance Attache a gum absorber on the capi...

Страница 39: ...fan itself or vibration when working Change the fan motor Is the fan damaged or transformed Is the fan touching surround Set the fan right avoid to touch surround Start Is the fan moving or shaking Ch...

Страница 40: ...and repair Is pipe itself shaking strongly Is compressor itself shaking strongly Are pipes touching in the compressor room Separate the touching pipes Attach a gum absorber on top of the compressor S...

Страница 41: ...40 6 Circuit and checking 6 1 Circuit diagram...

Страница 42: ...er by screwdriver as picture 1 3 Remove the electric box cover as picture 2 4 Unplug the terminals on the mainboard as picture 3 5 Pry up the mainboard by fingers and take it out as picture 4 Picture1...

Страница 43: ...y remove the electric box cover and check 2 Check the connecting wiring between compressor and mainboard and repair if it is broken 3 Use a multimeter to measure voltage between N label and COMP label...

Страница 44: ...e 2 Remove the screws of protector box by screwdriver as picture 1 3 Pry up the protector box from top by screwdriver as picture 2 4 Unplug the overload protector as picture 3 5 Unplug the PTC starter...

Страница 45: ...checking 1 Check the connecting wiring of fan motor is well or not repair if it is broken The fan motor corresponding pin No 13 15 on CN4 connector of mainboard as the drawing below 2 Pin No 14 connec...

Страница 46: ...component and unplug the terminals as picture 2 4 Remove the screw of the wind channel component by screwdriver as picture 3 5 Pry up the wind channel cover from the buckles by screwdriver as picture...

Страница 47: ...hecking 1 Check the connecting wiring of the damper is well or not repair if it is broken The damper corresponding pin No 1 6 on CN6 connector of mainboard as the drawing below 2 The damper will turn...

Страница 48: ...as picture 1 3 Remove the wind channel component and unplug the terminals as picture 2 4 Separate the wind channel cover and foam as picture 3 5 Remove the sponge and adhesive paper on the foam as pi...

Страница 49: ...7 connector of mainboard freezer light corresponding pin No 1 and No 3 ice maker light corresponding pin No 1 and No 4 as the drawing below 2 Check output voltage corresponding light of the mainboard...

Страница 50: ...ppliance 2 Pry up the light cover from the buckles by screwdriver as picture 1 3 Remove the light cover as picture 2 4 Pry up the light from the buckles by screwdriver as picture 3 5 Unplug the termin...

Страница 51: ...nector of mainboard freezer door switch corresponding pin No 4 and No 7 as the drawing below 2 Check the magnet on the door is dropped out or not 3 Normally when the door is closed the two pins of doo...

Страница 52: ...ff temperature 72 Load voltage 250V Load current 10A 6 8 1 Basic parameters 6 8 2 Checking method 6 Circuit and checking Use a multimeter to measure resistance between the two terminals of the fuse if...

Страница 53: ...picture 1 2 Remove the screws of evaporator by screwdriver as picture 2 3 Separate the evaporator component from the cabinet and remove the foams at left side and right side as picture 3 4 Cut the se...

Страница 54: ...ultimeter to measure the voltage between pin No 1 and No 9 on XP7 connector of the mainboard if the voltage doesn t equal to electric supply power it means the heater is broken change it 2 Check the f...

Страница 55: ...nals as picture 1 2 Remove the screws of evaporator by screwdriver as picture 2 3 Separate the evaporator component from the cabinet and remove the foams at left side and right side as picture 3 4 Cut...

Страница 56: ...ng Refer to 4 5 Error display chapter 6 9 2 Removing the ice maker 6 9 2 1 Removing the ice bucket 1 Raise the ice bucket up as picture 1 2 Pull the ice bucket slantingly downwards as picture 2 3 Pull...

Страница 57: ...ter intake 56 6 Circuit and checking 1 Pull the front cover out slantingly upwards as picture 1 2 Pull the water intake slantingly upwards as picture 2 3 Remove the two buckles of the water intake as...

Страница 58: ...ice maker holder by screwdriver as picture 1 2 Unplug the terminal of the ice maker as picture 2 3 Remove the screws of the ice maker by screwdriver as picture 3 4 Remove the wiring as picture 4 5 Pul...

Страница 59: ...Remove the screws of the motor by screwdriver as picture 1 2 Remove the coupling as picture 2 3 Remove the screws of the motor cover by screwdriver as picture 3 4 Remove the cover and pull out the mo...

Страница 60: ...lug connecting terminal as picture 2 3 Remove the screws by screwdriver as picture 3 4 Pry up the ice dispenser at the buckles as pictire 4 5 Pull out the ice dispenser as picture 5 6 Unplug the motor...

Страница 61: ...lve by screwdriver as picture 1 2 Pull out the water valve as picture 2 3 Unplug the connecting terminal as picture 3 4 Remove the water tube connector as pictire 4 5 Remove the water tube as picture...

Страница 62: ...another then becomes middle temperature high pressure liquid after condensation Refrigerant enters dry filter water and imperity will be filtrated Refrigerant enters capillary and pressure will be red...

Страница 63: ...62 7 Refrigeration system repair 7 1 Refrigeration system Anti condensation pipe Condenser Finned evaporator Compressor Dry filter Evaporation pipe Air return pipe Condenser...

Страница 64: ...63 7 Refrigeration system repair 7 2 Summary of repair...

Страница 65: ...64 7 3 Regualation for repair 7 Refrigeration system repair...

Страница 66: ...65 7 4 Practical work for repair 7 Refrigeration system repair...

Страница 67: ...66 7 4 Practical work for repair 7 Refrigeration system repair...

Страница 68: ...wing 7 Refrigeration system repair Anti condensation pipe Condenser Capillary Air return pipe Dry filter Connecting pipe Connecting pipe Compressor Finned evaporator Evaporation pipe Refrigearnt flowi...

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