Haier HRF-660W/U Service Manual

Order No. Ref1009S031V0

◎2010 (HAIER ELECTRICAL APPLIANCES COR. LTD)

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

Refrigerator

SERVICE MANUAL

MODEL:

HRF-660W/U

This service information is designed for experienced 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.

Haier Group

WARNING

SERVICE MANUAL

Model: HRF-660W/U

2

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 11

3-6. Display panel 11

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

4-1. Display control board 12

4-2. Control function display 12

4-3. Fuzzy mode 12

4-4. Open-door warning 12

4-5.

Malfunction display 12

4-6. Fridge ON / OFF function 13

4-7.

Quick freezer function 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 14

5-3. Defrost control 14

3

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 18

7-3.Sensor and error codes 18

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

SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

4

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 all 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 clearance 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.

SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

5

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:

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

Issue 2010-09-30

Rev. Ref1009S031V1

6

Chapter 2 Product Feature

2-1. Specifications

1 Model

HRF-660W/U

Photo

Product description (Refrigerator/Freezer) Refrigerator-Freezer

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

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

Climate class* SN.N.ST

Freezer compartment / Star rating 4*

2 Key features

Total gross volume L 582

Total storage volume L 530

Defrosting (M=manual A=autom atic) A

Frost free system yes

Defrost water outlet yes

Air circulating ventilator yes

Kind of coolant R600a/ 80g

Foaming components C-P

3 Technical data

Voltage / frequency V/Hz 220V-240V~/ 50

Input power W 200

Cooling system: K=Compressor / A=Absorption K

4 Door:

F= flat / R= rounded / S= streamline S

Inside color

w

Hinged (r =right l =left) / reversible R / L

Freezing compartment integrated with door

No

Shelves:

Number Fridge / Freezer n° 4 / -

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

g / P

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

t

Adjustable (Y=yes / N=not)

Yes

Crisper:

Number Fridge / Freezer n° 2 / -

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

SERVICE MANUAL

Model: HRF-660W/U

Issue 2010-09-30

Rev. Ref1009S031V1

7

Drawer:

Number Fridge / Freezer n° - / 2

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

Bottle holder:

Number Fridge / Freezer n° 5 / 4

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

5 Equipment & accessories

Control panel:

Interior / exterior Interior

Thermometer interior / exterior Interior

Over temperature alarm LED / acoustic Yes

Adjustable thermostat Yes

Fast freeze switch /-function Yes

Deodorizing Yes

Interior light W Yes

Ice maker Manual/ Automatic -

Adjustable feet front / rear n° 2 /FRONT

Castors front / rear - / yes

6 Product dimensions

Unit dimensions ( H / W / D) mm 1768/890/770

Net weight kg 120

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

Issue 2010-09-30

Rev. Ref1009S031V1