Hisense RD-44WC Service Manual

Refrigerator

Service manual

NO FROST

MODEL: RD-44WC*（BCD-322WYA）

NOTE: product specifications are subject to change.

1

Comtents

Warnings and precautions for safety ............................................................................................................................. 2

Parts Description .......................................................................................................................................................... 3

Circuit diagrams and parameters .................................................................................................................................. 4

Cooling diagram ........................................................................................................................................................... 5

Fault display code ......................................................................................................................................................... 6

Compulsory defrost ...................................................................................................................................................... 7

The setting of control panel .......................................................................................................................................... 7

Checking the Compressor ............................................................................................................................................. 8

Checking the defrost fuse ........................................................................................................................................... 10

Checking the Heater ................................................................................................................................................... 10

The guide for Disassembly Common parts of Refrigerator ........................................................................................ 11

The instruction of replacing the main board. .............................................................................................................. 11

The instruction of of replacing lamp and display board ............................................................................................. 12

The instruction of of replacing fan motor. .................................................................................................................. 13

The instruction of replacing evaporator temperature sensor and temperature fuse and heater. .................................. 14

The instruction of replacing Door switch. .................................................................................................................. 15

The instruction of replacing PTC Starting relay and Overload protector. .................................................................. 16

The instruction of replacing electric wind gate. ......................................................................................................... 16

Reversing the door ...................................................................................................................................................... 17

Water Dispenser .......................................................................................................................................................... 20

Troubleshooting .......................................................................................................................................................... 22

The common problem judging method ...................................................................................................................... 22

The solution for the common problem. ...................................................................................................................... 23

Note: ........................................................................................................................................................................... 25

2

Warnings and precautions for safety

Please observe the following safety precautions in order to use safely and correctly the refrigerator
and to prevent accident and danger during repair.

1. Be care of an electric shock. Disconnect power cord from wall outlet and wait for more than
three minutes before replacing PCB parts.
Shut off the power whenever replacing and repairing electric components.

2. When connecting power cord, please wait for more than five minutes after power cord was
disconnected from the wall outlet.

3. Please check if the power plug is pressed down by the refrigerator against the wall.
If the power plug was damaged, it may cause fire or electric shock.

4. If the wall outlet is over loaded, it may cause fire.
Please use its own individual electrical outlet for the refrigerator.

5. Please make sure the outlet is properly earthed, particularly in wet or damp area.

6. Use standard electrical 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 out or twist the power cord.

9. Please check the evidence of moisture intrusion in the electrical components.
Replace the parts or mask it with insulation tapes if moisture intrusion was confirmed.

10. Do not touch the icemaker with hands or tools to confirm the operation of geared motor.

11. Do not let the customers repair, disassemble and reconstruct the refrigerator for themselves.
It may cause accident, electric shock, or fire.

12. Do not store flammable materials such as ether, benzene, alcohol, chemicals, gas, or
medicine in the refrigerator.

13. Do not put flower vase, cup, cosmetics, chemicals, etc., or container with full of water
on the top of the refrigerator.

14. Do not put glass bottles with full of water into the freezer.
The contents shall freeze and break the glass bottles.

15. When you scrap the refrigerator, please disconnect the door gasket first and scrap it

3

Parts Descr iption

4

Circuit diagrams an d parameters

Basic features

Voltage / frequency v/Hz 220-240V~ 50HZ
Net capacity l RD-44WC

Net capacity fridge compartmen
(Fridge/Chill) l 229L

Net capacity freezer compartment

l 93L

Energy efficiency class

A+

Climate class (SN=10~32°C, N=16~32°C,
ST=16~38°C, T=16~43°C) SN-T
Freezer compartment star rating 4 Star
Energy consumption / year kWh/year 310

Energy consumption (ISIRI 4853-2) per 24 h kWh/24 h 0.85

Freezing capacity / 24 hours kg/24 h 12
Compressor （W） 220V,165W
PTC starter （V/Ω） 220V ,15±20%Ω
Overload protector (Turn off/Turn on) °C 120±5°C/ 61±9°C

Heater （V/W/Ω）

220V,150W±10%

324Ω±10%

5

Cooling diagram

LED Light （V/W） DC12V,1W
fan motor （V/W） 13.2V，2W
Max noise level dB(A) ≤42
Kind of coolant / Charge (R134a/R600a) /
grammes R / g R600a/38.5
Net weight kg 77
Gross weight kg 85

W x D x H (appearance) mm 595×683×1850

W x D x H (packaging) mm 646×741×1931

6

Fault displ ay code

1.If there is a temperature sensor f ault, fan fault or defrosting timeout fault, each time you open the refrigerator
door, t he cor r esponding LED light flashing 30 seconds on the display boar d.

2.When freezer temperatu r e sensor occur failure: refrigeration temperature display ar ea D1 Light flash 30
seconds.

3. When the freez er temper ature sensor occur fai lure: froz en temperat ure dis play area F 1 lights flash 30 seconds.

4. When the defrosting se nsor occur failure: frozen temperature display area F2 indicator light flash 30 seconds.

5. When the refrigerant evapor at ing fan occur failure: frozen temperatur e display area F3 indicator light f lash 30
seconds.

6. When the defrosting he at er heat ing time arrive to the limit ti me, frozen temperature disp lay area F4 indicator
light flash 30 seconds.

7. when the refrigerator door open time more than 2 minutes and less than 12 minutes, refri ger at or door
temperature display area D5 i ndicator lights indicat i ng unt il the refrigerator door clos ed.

8. when frozen door open time m or e t han 2 minutes and less than 12 minut es, the freezing temperature disp lay
area F5 indicator lights i ndicating until frozen door closed.

9. When communicati on occur failure refrigerat ion temperature display area D2 indicator lig hts indicating unti l the
communications back to nor m al.
When the fault is eliminated, it turns to norm al d isplay.
Using a multimeter with the ohm switch to measure the resist or of sensor, normally at surrounding 25 ℃ the
resistor should be about 2kohm and every with the temperature decreases 1℃ the corresponding resistor value
would increase about 45o hm. I f the measured value is not within the normal scope, the sensor i s bad and needs
to repair or change.

7

Compulsory defrost

within 10 minutes after connecting power, please Press the button "Fridge" and "Freezer" at the s ame time, when
the refrigerator door opens and t he freezer door closes, for 10 seconds . In addition, w ith a long sound of buzzer,
it enters into the process of mandat or y defrosting.

--After entering into the process of mandatory defrosting, it controls the operation according to the normal
operation of the automatic defrosting process.

--In the process of mandatory defrosting, the cold storage and the frozen temperature display area LED lamp
repeatedly lights up from left to right.

The setting of control panel