SERVICE MANUAL

Order No. Ref1009S031V0

Refrigerator

MODEL:

HRF-660W/U

WARNING

This service info rmation is des igned for e xperienced repair technicians only and is not 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 result in serious injury or death.

◎

2010 (HAIER ELECTRICAL APPLIANCES COR. LTD)

All right reserved. Unauthorized copying and distribution is a violation of law.

Haier Group

SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

Contents

Table of Contents

·········································································································· 1

1. General Information·································································································· 4

1-1.

General guideline 4

1-2. Insurance test 4

1-3. How to read this Service Manual 5

2. Product Feature ········································································································ 6

2-1. Specifications 6

2-2. Main functions 7

2-3. External views 8

3.

Disassembly and Installation

·············································································· 9

3-1. Door and handle 9

3-2. Lamp switch 9

3-3.

Wind passage cover assembly and lamp in fridge chamber ······························ 9

3-4. Wind passage cover assembly and lamp in freezer chamber 10

3-5. Control panel box

3-6. Display panel

11

11

4. Control and Display System ····················································································12

4-1. Display control board 12

4-2. Control function display

4-3. Fuzzy mode

4-4. Open-door warning

4-5.

Malfunction display

4-6. Fridge ON / OFF function

4-7.

Quick freezer function

12

12

12

12

13

13

4-8.

Fridge lamp control 13

5.

Control principal and related test functions·························································· 14

5-1. Air Damper 14

5-2. Control principle of fan motor

5-3. Defrost control

14

14

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SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

5-4.

Self-testing function 15

6. System flow principle······························································································· 16

6-1. System flow scenograph 16

6-2. System flow chart 16

7. Circuit diagram·········································································································· 17

7-1. Main control PCB diagram 17

7-2. Brief principle diagram

7-3.Sensor and error codes

18

18

8. Trouble shooting ·······································································································20

3

SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

Chapter 1 General Information

1-1. General Guidelines

When servicing, observe the original lead dress. If a short circuit is found, replace all p arts which have been overheated or damaged b y the short circuit. After servicing, see to it that a ll the protective devices such as insulation barri ers, insulati on p apers shields are pro perly inst alled. Af ter servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.

1) Leakage Current Cold Check

2) Leakage Current Hot Check

3) Prevention of Electro Static Discharge (ESD) to Electrostatic Sensitive

1-2. Insurance test

1. Check if there is any leak of current.

2. Cut out the power supply before the repair to avoid an electrical shock hazard.

3. In the case of a live-line test, insulating gloves should be worn to avoid potential electrical shock.

4. Confirm the rated current, voltage and capacity before testing with any kinds of instruments.

5. Watch if the upper door is open when you check something at a lower position.

6. Take out every part in the cabinet before moving the machine, especially things like panels (e.g. glass shelf).

7. Please wear intact cotton gloves wh en repair any parts of the evapor ator, so that scr atches by th e 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 50～60Hz.

10. A big fluctuation of voltage (exceed the range 187～242V) may cause a start failure of the refrigerator, a burn -out o f the control p anel and compressor, or an abn ormal sound from the co mpressor in operation. In this condition an automatic voltage regulator over 750W should be added.

11. Take care not to damage the supply line. Don’t yank at the line; pull the plug out gently from the receptacle. Don’t press the line under the cabinet or step on it. Take care not to roll on or damage the supply line when moves the machine from the wall.

12. In the case of leakage of inflammable gases like carbon monoxide, open the door and windows. Don’t pull out or insert the plugs of the appliance.

13. Don’t touch the refrigeration surface of the freezing compartment when the refrigerator is in operation, especially when your hand is wet, else you may be glued to the surface.

14. Pull out the plug of power suppl y du ring clearan ce or power out age. Wait at least fiv e minutes to resume the power supply in order to prevent damage to the compressor caused by continuous restart.

4

SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

Photo used in this manual

The illustration and phot os used in this Manual may not base on the final design of products, which may differ from your products in some way.

1-3. How to read this Service Manual

1-3-1. Using Icons

The meaning of each icon is described in the table below:

5

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 on a specific topic.

SERVICE MANUAL

Model: HRF-660W/U

Chapter 2 Product Feature

2-1. Specifications

1 Model

Issue 2010-09-30

Rev. Ref1009S031V1

HRF-660W/U

6

Photo

Product description (Refrigerator/Freezer)

Type of appliance (FS=freestanding / BI= built-in)

Type of cooling system(NF=no frost/ S=static)

Climate class*

Freezer compartment / Star rating

2 Key features

Total gross volume

Total storage volume

Defrosting (M=manual A=autom atic)

Frost free system

Defrost water outlet

Air circulating ventilator

Kind of coolant

Foaming components

3 Technical data

Voltage / frequency

Input power

Cooling system: K=Compressor / A=Absorption

4 Door:

F= flat / R= rounded / S= streamline

Inside color

Hinged (r =right l =left) / reversible

Freezing compartment integrated with door

Shelves:

Number Fridge / Freezer

Type (gr=grill / g=glass / p=plastic)

Color w-white / g=green / t=transparent.

Adjustable (Y=yes / N=not)

Crisper:

Number Fridge / Freezer

Color of crisper(s) ( t=transparent / w=white)

Refrigerator-Freezer

FS

NF

SN.N.ST

4*

L

L

582

530

A

yes yes

yes

R600a/ 80g

C-P

V/Hz

W

220V-240V~/ 50

200

K

S w

R / L

No n° 4 / -

g / P t

Yes n° 2 / - t

SERVICE MANUAL

Model: HRF-660W/U

Drawer:

Number Fridge / Freezer

Color of drawer(s) ( t=transparent / w=white)

Bottle holder:

Number Fridge / Freezer

Color of bottle holder(s)( t=transparent / w=white)

5 Equipment & accessories

Control panel:

Interior / exterior

Thermometer interior / exterior

Over temperature alarm LED / acoustic

Adjustable thermostat

Fast freeze switch /-function

Deodorizing

Interior light

Ice maker Manual/ Automatic

Adjustable feet front / rear

Castors front / rear

6 Product dimensions

Unit dimensions ( H / W / D)

Net weight

Issue 2010-09-30

Rev. Ref1009S031V1 n° - / 2 t n° 5 / 4

t

Interior

Interior

Yes

Yes

Yes

W

Yes

Yes n°

-

2 /FRONT

- / yes mm kg

1768/890/770

120

7

2-2. Main Functions

1. Whole air-cooled computer control system, there is a freezer evaporator and a fan in freezing room, fridge room through the air circulation blowing by fan to carry on the refrigeration,, fridge room is controlled through the ON/OFF of electronic damper to achieve temperature control, control freezing room temperature through the run and stop of compressor.

2. Large LED digital display to show each inner room temperature。

3. AI control function. Chamber temperature can control automatically according to the ambient temperature, and no need human intervene.

4. Malfunction self-diagnosis function. It can shows error codes automatically to help solving problems in time when system does not work properly.

5. Open-Door warning function: If the door is not properly closed, or the door is opened for an extended period , the appliance buzzer will sounds at an interval.

6. Ultra-thin door design, appearance is more concise and generous.

SERVICE MANUAL

Model: HRF-660W/U

2-3. External views

Issue 2010-09-30

Rev. Ref1009S031V1

8

SERVICE MANUAL

Model: HRF-660W/U

Chapter3 Disassembly and Installation

3.1. Door and handle

1. Loosen the screw by screwdriver, and then remove the hinge cover from upper way.

2. Loosen the screw fixing the upper hinge to the body and lift the door.

3. Door gasket can be pulled out from door foam assembly .

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Rev. Ref1009S031V1

9

4. Fix the bolt into the hole on the door, and then use the handle aiming to the bolt, push the handled own until it touch the door firmly.

3.2. Lamp Switch

1. To remove the switch pulls out it with a flat type screwdriver as shown in.

2. Disconnect the lead wire from switch.

3.3. Wind passage cover assembly and lamp in fridge chamber

1. Unplug the power cord from the outlet;

2. Remove the fridge shelf;

3. Remove the lamp cover ;

4. The bulb can be replaced;

SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

5. Loosening 2 screws fixed to ceiling of inner liner;

6. Pull out the electric damper, wind passage and the wind passage cover;

7. After replaced the disabled parts, assemble in reverse order of disassembly.

10

3.4. Wind passage cover assembly and lamp in freezer chamber

1. Unplug the power cord from the outlet;

2. Remove the freezer shelf;

3. Remove the lamp cover;

4. The bulb can be replaced;

5. Loosening 2 screws f ixed the cover and pull out the top freezer air tower;

6. Pull out the bottom freezer air tower and unplug the sensor cable;

7. Pull out the freezer rack, unplug the fan motor cable and separate the fan motor cover and the rack.

8. Pull out the freezer air shutter;

9. Unplug the defrost sensor cable and replace it;

10. Assemble in reverse order of disassembly.

SERVICE MANUAL

Model: HRF-660W/U

3.5. Control panel box

1.Unplug the power cord from the outlet;

2.Lossening 4 screws fixed the control panel box cover;

3.Open the cover;

4. Replace or check the control panel if necessary.

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Rev. Ref1009S031V1

11

3.6. Display panel

1.Unplug the power cord from the outlet;

2.Lossening 2 screws fixing the bottom of control panel assembly;

3.Unplug the display panel;

4.Lossening 4 screws fixing the control panel.

SERVICE MANUAL

Model: HRF-660W/U

Chapter 4 Control and display system

(1) Display control board

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Rev. Ref1009S031V1

12

(2) Control function display

30 minutes later after the final press of button, display will be blank. Previous display can be resumed if any button is pressed or any door opened.

(3) Fuzzy mode

If fuzzy mode is activated, the appliance will adjust inside temperature automatically according to ambient temperature. Fuzzy mode is activated and inactivated by consecutive press of button A, then light E will be turned on and off.

NOTE: Fridge temperature can not be adjust in Fuzzy mode.

(4) Open-door warning

If the door is not properly closed, or the door is opened for an extended period (more than 60 seconds), the appliance buzzer will send out 3 alarm sounds at an interval 30 seconds, until the door is closed properly.

(5) Malfunction display

If control or function system does not work properly, information of refrigerator or freezer compartment temperature will not be display , This will not af fect the cooling effect in short period of

SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1 time. User should contact authorized after-sales service for technical assistance in time.

(6) Fridge ON/OFF function

Hold button D pressed for 3 se conds, the refr igerator perf ormance ceased and icon H goes out, leaving refrigerator light under normal status.

If refrigerator performance ceased, hold refrigerator temperature button D for 3 seconds again, icon

H will appear and refrigerator performance will be resumed.

13

(7) Quick freeze function

Press button B, indicator F lights, and super freeze mode is activated. If button B is pressed again, indicator F goes out and super freeze mode is inactivated.

Super freeze function is designed to preserve the nutritional value of food, as the food will freeze completely in the shortest period possible with compressor continual running. The appliance will exit super freezer mode after continual running for 4 hours.

NOTE: Freezer temperature can not be adjust in Super Freezer mode.

(8) Fridge lamp control

When the fri dge door i s open, lamp will be light, and if keep the door open more than 7 minutes, lamp will extinguish automatically.

SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

Chapter 5 Control principal and related test functions

5-1. Air damper

1) Refrigerating sensor R1 controls the startup and shut down of air damper in refrigerator compartment.

2)The air damper is closed (in order to prevent the comp artment from freezing) within 15 minutes from the beginning to the finishing of defrosting.

3) Force the air damper to be opened and close d once if it can not be opened within 1 hour . After that, decide whether open or close it according to R1 sensor.

4) The air damper heater and ice dispenser heater work in-phase.

5) Environment temperature is above 12 , the heater of bar will be on, when lower than 10

℃

, heater will be off.

6) Dispenser heater and water drain pipe heater will be off for 10 minutes and 30 minutes on, thus a circulation.

5-2. Control principle of fan motor

Control of freezing fan:

When open the refrigerating door, the refrigerating air damper will be turned on, and the freezing fan will be working, after 2 minutes the refrigerating air damper will be turned off.

When open the freezing door, If the freezing fan works at a speed of 1500 RPM, the freezing fan will keep working but switch to 1300 RPM. If the fan works at a speed of 1300 RPM, it will shut off when the freezing door is open.

Control of refrigerating fan:

This fan is working in-phase with the compressor and at a fixed speed of 1100 RPM.

5-3. Defrost control

Automatic defrost: Af ter added up t o 7 hours o f compressor running, defrost will be switched on.

When defrost SNR temperature reaches 7℃, defrost will be over.

If the defrosting time is more than 120 minutes, and defrost sensor still can not reach to 7ºC, it will stop defrosting process and give warning error indicator—display error code F6..

Easily failure components of defrosting system：

1）Defrosting fuse: It is located in the left side of evaporator. If the fuse is open circuit, means it is defective.

2）Connectors: The fre quently failu re phenomenon is that pin of connectors is dislocation or oblique.

3）Defrosting sensor: It is located in the upper right side of evaporator, the sensor control the defrosting time.

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SERVICE MANUAL

Model: HRF-660W/U

5-4. Self-testing function

About self-test function：

(1) With se lf-test function, the appliance can quickly check the working condition of fan, compressor and defrost heater.

(2) How to enter and quit: press the test butt on on the main control boar d once, and enter the forced starting mode, and a second time press to enter forced defrosting mode.

Issue 2010-09-30

Rev. Ref1009S031V1

TEST button

MODE

TEST1

TEST2

Resume normal mode

OPERATION

Press test button once to enter

Forced Start mode.

Under test 1 and press test button again to enter

Forced Defrost mode.

WORKING CONDITION REMARKS

(1) compressor forced start.

(2) freezing fan work at high speed

(3) refrigerating fan work

(4) heater shut down

(5) air escaper opens

Press test button two times to quit this mode.

(1) compressor shut down

(2) no fan works

(3) Defrost heater works

Press test button one time to quit this mode.

(4) air escaper closes

Press test button for a third time.

Resume to normal mode and the compressor will start in 7 minutes.

15

SERVICE MANUAL

Model: HRF-660W/U

Chapter 6 System flow principle

6-1.System flow scenograph

6-2.System flow chart

Issue 2010-09-30

Rev. Ref1009S031V1

(1)Compressor

(2)Condenser

(3)Hot connector pipe for freezer

(4)Hot connector pipe for fridge

(5)Drier filter

(6)Capillary tube

(7)Evaporator

(8)Suction pipe

(9)Compressor DC fan motor

(10)Freezer DC fan motor

This product adopts an air-cooled refrigeration system to ensure accurate refrigeration in freezer compartment and refrigeration compartment.

16

SERVICE MANUAL

Model: HRF-660W/U

Chapter 7 Circuit diagram

7-1. Main control PCB diagram

Issue 2010-09-30

Rev. Ref1009S031V1

17

SERVICE MANUAL

Model: HRF-660W/U

7-2. Brief principle diagram

Issue 2010-09-30

Rev. Ref1009S031V1

18

7-3. Sensors and error codes

Sensor Location:

SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

Sensor name

Sensor

marker

Sensor location Function

RT sensor

Freezer sensor

RT SNR under the right hinge box

F SNR middle of freezer compartment measure the temp. of the circumstance

Refrigerator sensor 1 R1 SNR beside the air-vent in REF measure the temp. of the air

Refrigerator sensor 2 R2 SNR on the right side of the REF cabinet measure the temp. of the REF compartment

Defrosting sensor D SNR on the top of the evaporator in FRZ measure the temp. of the evaporator measure the temp. of the FRZ compartment

Error code list:

NO Malfunction

1 F SNR failure

2 RT SNR failure

3 R1 SNR failure

Error Indicator

Error code meaning

F SET R SET

F4 normal F SNR is short circuit or open circuit normal normal

F3 RT SNR is short circuit or open circuit

F1 R1 SNR is short circuit or open circuit

4 R2 SNR failure

5 D SNR failure normal normal

F2 R2 SNR is short circuit or open circuit

F6 D SNR is short circuit or open circuit

6 Freezer fan motor failure normal E1 more than 30 seconds without signal

7

8 Failure communication normal

9

Condenser fan motor failure

Defrosting system failure normal normal

E2 more than 30 seconds without signal

E0

No reflect when setting ,between display PCB and Power PCB no signal transmitted over 2 min

Ed can not reach -12℃ within 2 hours

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SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

Chapter 8 Trouble shooting

Water/moisture/frost in the refrigerator

Moisture accumulates on the refrigerators inner walls

Water/moisture/frost on outside surface of the refrigerator

Moisture accumulates on the refrigerator’s outside surface or between two doors



Hot and moist climate.



The door is not closed tightly



The door is opened too



 frequently or for too long time

Damp climate

The refrigerator door is not closed tightly. This causes mixing of the cold air in the refrigerator with the warm air outside it



Accumulation of frost and moisture accelerate in such climate.



Make sure the refrigerator is level and there is no food or container interfer ing with the door



Do not open the door so frequently



It is normal in damp climate. The moisture will decrease when the humidity drops.



Make sure the refrigerator is level and there is no food or container interfer ing with the door

Refrigerator operation

The compressor does not work

The fridge storage compartment does not work

The refrigerator runs frequently or runs for too long period





The refrigerator is in defrosting cycle.



The refrigerator is not plugged into a power outlet.



The refrigerator is in

OFF state.



The air door cable is not connected properly.



The fan does not work

The fridge storage compartment is turned off



The indoor or outdoor

 temperature is high



The refrigerator has been powered off for a period of time.



The automatic icemaker is operating.



The door is opened too frequently or for long periods.



The door of the fridge / freezer storage compartment is not tightly closed.



The temperature setting for the freezer storage compartment is too low

The door gasket of the fridge/freezer storage







It is normal for an automatic defrosting refrigerator.

Verify the plug is plugged in the socket firmly.

Press the “Power” button for 3 second or more to restart the refrigerator or tur n the knob from OFF to temperature selection position.



Check if the air door cable is not connected properly and install it correctly if not so. Verify that the air door acts normally with the Fridge ON/OFF key on the display panel



The fan does not work while the refrigeration air door is open. Please check if the door on-off behind the f ront decoration strip is installed properly.

Reinstall it correctly if not so.



Turn on the fridge storage comp artment manually



In this case, it is normal for the refrigerator to run longer.



Normally, it takes 8 to 12 hours for the refrigerator to totally cool down.



Icemaking process makes the refrigerator to run longer.



Warm air enters the refrigerator and causes it to start frequently. Please do not open the door so frequently.



Make sure the refrige rator is level place and there is no food or container interfering with the door.



Set the temperature higher until satisfactory refrigerator temperature is obtained. It takes 24 hours for the refrigerator temperature to become stable.



Clean or replace the door gasket.

Leakage gap of door gasket can cause

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SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

Slight sound similar to that of flowing water

Heating of cabinet compartment is dirty, worn, cracked or mismatched.



The condenser is dirty.

Too high temperature

Too high temperature in the fridge/freezer storage compartment

Abnormal sound



The door is opened too frequently or for too long periods of time



Temperature is set too high



The door is not closed tightly



The condenser is dirty



The temperature is set too high

The temperature in the freezer storage compartment is too high while the temperature in the fridge storage compartment is OK

The temperature in the fridge storage compartment is too high while the temperature in the freezer storage compartment is OK

Bad odors in the refrigerator

The inside of the refrigerator is dirty



The temperature is set too high



The inside of the refrigerator needs cleaning



Food with strong odor is stored in the refrigerator

If you hear...

Beeps



The fridge storage compartment door is open



The temperature in the freezer storage compartment is too high



The refrigerator is not located on a level surface



The refrigerator touches some object around it



It is the sound of the refrigerating system



The de-dew tube is de-dewing longer running time of the refrig erator in order to maintain desired temperature.



Clean the condenser.



Warm air will enter the refrigerator whenever the door is opened. Try to open the door as infrequently as possible.



Reset the temperature.



Make sure the refrigerator is on a level surface and there is no food or container interfering with the door.



Clean the condenser.



Set the freezer temperature lower. It takes 24 hours for the temperatur e of the refrigerator to become stable.



Set the fridge temperature lower. It takes

24 hours for the temperature of the refrigerator to become stable.



Clean the internal of the refrigerator



Wrap the food tightly.



Close the door or silence the alarm manually



The alarm is normal when it is first started due to relatively higher temperature.



Adjust the feet to level the refrigerator.



Remove objects around it.



Normal.



It is a process to prevent dewing. It is a normal phenomenon.

21

Sincere forever

Haier Group

Haier Industrial Park, No.1, Haier Road

266101, Qingdao, China http://www.haier.com