Thor Kitchen HRF3603F User manual

Model:HRF3603F
Refrigerator
Service Manual

1Contents
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1.Warnings and precautions for safety
2.Appearance and structure
2.1 View of the appliance
2.4 Compressor room structure
3.Basic parameters
4.Operation and functions
5.Troubleshooting
6.2 Mainboard and display panel
6.3 Compressor
5.1 Common problem and checking
5.2 Faulty start
5.3 Refrigeration failure
5.4 Thick frost in freezer compartment
5.5 Dew in refrigerator 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
2.3 Evaporator structure
4.1 Display controls
4.2 Defrost mode
4.3 Compulsory defrost mode
6.5 Damper
6.6 Light
6.7 Door switch
6.8 Temperature fuse
4.4 Error display
5.6 Low temperature of vegetable vase
5.7 Breaking of light
5.8 Noise
6.9 Defrost heater
7.1 Refrigeration system
2.2 Wind channel structure
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6.10 Checking the electromagnetic valve........................................49

21.Warning 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
1 Warning and precautions for safety

32.Appearance and structure
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 same.
2.1 View of the appliance

2.2 Wind channel structure
42.Appearance and structure
Refrigerator
compartment
Freezer
compartment
Variable
temperature
compartment
Freezer fan
Refrigerator fan
Damper
Refrigerator evaporator
Freezer evaporator

2.2 Wind channel structure
52.Appearance and structure
冷冻室风道循环
Refrigerator compartment
Freezer compartment

2.3 Evaporator structure
62.Appearance and structure
Fuse
Sensor
Heater
Evaporator

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2.4 Compressor room structure
2.Appearance and structure
Ground wire
Compressor
Dry filter
Bottom fan
Evaporation dish
Bottom condenser

83.Basic parameters
Content Unit Value
Voltage / frequency V/Hz 220-240/50
Rated current A 1.8
Rated input power W 220
Defrost power W 250
Net capacity L 610
Net capacity fridge compartmen
(Fridge/Chill) L 396/107
Net capacity freezer compartment L 107
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 S
Refigerator room temperature °C 2~8
Freezer room temperature °C -24~-14
Freezer compartment star rating 4 Star
Energy consumption / 24 hours kWh/24h 1.301
Freezing capacity / 24 hours kg/24 h 10
Max noise level dB(A) 43
Kind of coolant / Charge
(R134a/R600a) / grammes R / g R600a/68
3 Basic parameters

94.Operation and functions
4.1 Display controls
4 Operation and functions

10 4.Operation and functions
4.1 Display controls

11 4.Operation and functions
4.1 Display controls

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4.2 Defrost mode
4.Operation and functions
4.2.1 Start condition
When compressor accumulated running time reach the setting point
(depends on the environment temperature),it will enter defrost mode
automatically.
4.2.2 Defrost flow
Compressor stops
Evaporator fan stops
Damper stops
Defrost heater and
damper heater work
Evaporator temperature reach the
setting point,exit defrost mode
Compressor starts
several minutes delay
Evaporator fan starts
several minutes delay
Damper starts
Start
Defrost heater and
damper heater stop

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4.3 Compulsory Defrost mode
4.Operation and functions
4.3.1 Start condition
Compressor stops
Evaporator fan stops
Damper stops
Defrost heater and
damper heater work
90 seconds later,exit defrost mode
until evaporator temperature
reach the setting point
Defrost heater and
damper heater stop
Compressor starts
several minutes delay
Evaporator fan starts
several minutes delay
Damper starts
Start
4.3.2 Compulsory defrost flow
Keep the refrigerator door closed,press the “Fridge” button and “My Fresh
Choice” button for more than 3 seconds in 10 minutes after power-on,then it
will enter compulsory defrost mode.

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4.4 Error display
4.Operation and functions
4.4.1 Error code

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4.4 Error display
4.Operation and functions
4.4.2 Checking method
Start
Change the mainboard
Is the sensor connecting
wiring broken? Repair the wiring
Is the sensor OK? Change the sensor
Is the sensor connector
plug well?
Plug the terminal well
4.4.2.1 Humidity sensor error

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4.4 Error display
4.Operation and functions
4.4.2 Checking method
4.4.2.1 Humidity sensor error
Note:
1.The humidity sensor corresponding pin No.13,No.6 and No.4 on
CN5 connector of mainboard.
2.Use a multimeter to check the voltage of pin No.4 and No.6 is 5V or
not and the voltage of pin No.13 is 1.2-3.5V or not(the value will
change along with the change of environment temperature and
humidity).If the result is abnormal,it means the humidity sensor is
broken.

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4.4 Error display
4.Operation and functions
4.4.2 Checking method
4.4.2.2 Other sensor error
Start
Change the mainboard
Is the sensor connecting
wiring open circuit
or short circuit?
Repair the wiring
Is the sensor OK? Change the sensor
Is the sensor connector
plug well?
Plug the terminal well

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4.4 Error display
4.Operation and functions
4.4.2 Checking method
4.4.2.2 Other sensor error
Note:
1.The refrigerator sensor corresponding pin No.8 and No.5 on CN5
connector of mainboard.
2.The refrigerator sensor corresponding pin No.12 and No.6 on CN5
connector of mainboard.
3.The freezer sensor corresponding pin No.9 and No.5 on CN5
connector of mainboard.
4.The defrost sensor corresponding pin No.10 and No.6 on CN5
connector of mainboard.
5.The environment sensor corresponding pin No.7 and No.5 on CN5
connector of mainboard.
6.The my fresh choice temperature sensor corresponding pin No.11 and
No.5 on CN5 connector of mainboard.
7.Use a multimeter to measure the resistance of the sensor,if it is
open circuit or short circuit,it means the sensor is broken.

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4.4 Error display
4.Operation and functions
4.4.2 Checking method
Start
Change the mainboard
Is the connecting wiring
between display panel and
mainboard broken?
Repair the wiring
Is the display panel OK? Change the display
panel
4.4.2.3 Communication error
Note:
Communication sensor corresponding pin No.1~4 on CN5 connector of
mainboard.