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Haier HRF-660S Service Manual

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SERVICE MANUAL
Order No.Ref1001S008V0
Refrigerator
MODEL: HRF-660S
WARNING
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.
200 9 (HAIER ELECTRICAL APPLIANCES COR. LTD)
All right reserved. Unauthorized copying and distribution is a violation of law
Haier Group

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  • Page 1 200 9 (HAIER ELECTRICAL APPLIANCES COR. LTD) All right reserved. Unauthorized copying and distribution is a violation of law...

  • Page 2: Table Of Contents

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model: HRF-660S Contents Table of Contents ·········································································································· 2 1. General Information ·································································································· 4 1-1. General guideline ······························································································· 1-2. Important notice·································································································· 1-3. How to read this Service Manual········································································ 2. Product Feature ········································································································ 6 2-1. Specifications ·····································································································...
  • Page 3 SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 8-3-2. No Refrigerating ···················································································· 8-3-3. Sudden stops ························································································· 8-3-4. Compressor could not be start ································································ 8-3-5. Problem with ice making ······································································· 8-3-6. Electric leakage of refrigerator ································································ 8-3-7. Stronger vibration and loader noise...

  • Page 4: General Information

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S Chapter 1 General Information 1-1. General Guidelines When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or damaged by the short circuit. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly installed.

  • Page 5: How To Read This Service Manual

    Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 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.

  • Page 6: Product Feature

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S Chapter 2 Product Feature 2-1. SPECIFICATIONS REFRIGERATOR HRF-660S Model units Commercial brand Haier Product description Type of Appliance (FS= freestanding BI= built-in) Climate class (N= + 18-32 °C T=+ 18-43 °C) SN.N.ST Key features...
  • Page 7 SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S Number Type (gr=grill/g=glass/p=plastic) glass:8 Colour of shelves white Adjustable Drawers: Number n°. Crisper: Salad crisper(s) transparent / white transparent Equipment & Accessories Control Panel: Control panel interior / exterior Exterior Control lamps green / yellow / red...

  • Page 8: External Views

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 2-2. External views Refrigerator Freezer compartment Light Bottle cover Light Shelves Shelves Ice tray Bottle rack Bottle rack Veggie drawer cover Freezer drawers Veggie drawer Note...

  • Page 9: Installation, Adjustments And Maintenance

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S Chapter 3 Installation, adjustments and maintenance 3-1. Install Handle First, screw part2 into the threaded hole in the door (part1); there are two screws per door. Next, press part3 with its larger opening onto part2. Finally, pull part3 down in order to attach it firmly to the door.

  • Page 10: Adjustable Foot

    Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 3-3. Adjustable foot If the freezer compartment door is lower than that of the refrigerator compartment, insert the wrench in the groove of the left screw and turn it in the direction of the arrow until both doors are the same height.

  • Page 11: Disassembly

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S Chapter 4 Disassembly 4-1. Doors 1. Open the refrigerator and freezer doors, remove the moulding from the refrigerator. 2. Remove the freezer compartment door. 1) Unscrew the hinge covers. Disconnect all wires except for the grounding wire.

  • Page 12: Bulb

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 4-2.Bulb Replacing the bulb at the top of refrigerator compartment Bulb specifications: 220-240V/25W Socket: E27 (Do not use a replacement bulb of more than 25W.) Replacing the bulb Install the bulb. Unplug the power cord. Remove the screws under the cover. Lift the cover indirection (1), and then pull it out indirection (2).

  • Page 13: Control Principle And Display System

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S Chapter 5 Control principle and display system 5-1. Control and display panel 1. Keys and Display panel The screen becomes dark automatically 30 minutes after key operation. Press any key or open any door to restore the display.
  • Page 14 SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 2. Temperature setting of freezer compartment / refrigerator compartment Temperature Parameters Areas NOTCH 1 (weak) 5 (strong) Preset temperature of freezing (°C) Actual control temperature (°C) Preset temperature of cold storage (°C) Actual control temperature (°C) 2.1 How to select a temperature setting...
  • Page 15 SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 2.3 Controls 2.3.1 Temperature Control (1) Temperature control of freezer compartment /refrigerator compartment Compressor ON or air Compressor OFF or air Item Sensor damper ON damper OFF Freezer NOTCH+1.5°C NOTCH-1.5°C F SNR compartment Refrigerator NOTCH+1.5°C...
  • Page 16 SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 2.3.2 Compressor Control (1) ON/OFF conditions of compressor 1. After defrosting, F SNR is not higher than 1. Powered on for the first time or after defrosting (F shutdown point; SNR is higher than shutdown point) 2.
  • Page 17 SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 2.3.4 Control of cooling fan (1)A DC fan is adopted. (2)The fan is operating synchronously with compressor (3)Under DC control, the fan works at a constant speed of 1100RPM (11V). 2.3.5 Lighting control of refrigerator (1)The light is on if the door is opened;...
  • Page 18 Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S (6)Defrosting has a higher priority than fast freeze. The defrosting time is included in fast freeze time. The fast freeze display is on all the time during defrosting. End of fast freeze and end of automatic defrosting are controlled by respective conditions.
  • Page 19 Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S (8) After defrosting, if the compressor operates 4 hours continuously, the defrosting will begin again. (9)Fast freeze display is powered on in fast freeze state during defrosting while automatic defrosting goes on. At the end of automatic defrosting, fast freeze will begin again. The remaining time of defrosting is included in fast freeze time.
  • Page 20 SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 2.7 Functional tests MODE Action Description Remark 2.7.1 Additional information of TEST functions (1) Continuous operation in TEST 1 MODE. (2)TEST2 should be activated 0.1 second later from TEST1 to TEST2. (3)The keys on display panel are inactivated in TEST1 or TEST2 MODE.
  • Page 21 SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 2.8 Fault diagnostics 2.8.1 Description and display Indication Item Description F SET R SET Normal setting indication of preset Normal none temperature F SNR is normal F SNR short circuit or broken circuit...

  • Page 22: System Flow Principle

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S Chapter 6 System flow principle 6-1. Refrigeration flow scenograph The product adopts an air-cooled refrigeration system to ensure accurate refrigeration in freezer compartment and refrigeration compartment. System flow scenograph Compressor Condenser Hot connector pipe for freezer...

  • Page 23: Circuit Diagram

    SERVICE MANUAL Issue 201001 Rev. Model:HRF-660S Ref1001S008V0 Chapter 7 Circuit diagram 7-1. Brief principle diagram HRF-660S* is the forced air cooling refrigerator with two doors (side by side). The control panel directly controls the start and stop of compressor.

  • Page 24: Main Control Pcb Diagram

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 7-2. Main control PCB diagram...

  • Page 25: Trouble Shooting

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S Chapter 8 Trouble shooting 8-1. Normal phenomena In a domestic refrigerator, there is not only a complicated electric control system, but also a refrigerating system that is difficult to discern whether it is in a good working condition. Both the systems are related and affect each other.

  • Page 26: Common Troubles In Refrigerators And Their Remedies

    Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 8-2 Common Troubles in Refrigerators and Their Remedies Causes for troubles occurring in refrigerators are closely related to the quality of components and workmanship in assembling by manufacturers as whether refrigerators are properly used and maintained .The parameters generally used to express the working conditions of a refrigerator...
  • Page 27 Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S During the normal operation of compressor ,a slight and uniform hum sound due to undulation of electric current can be heard generally ,this is a normal phenomenon .However ,if it sounds like “tong ,tong …”,i.e., an impact sound inside the compressor ,this means that a large quantity of wet vapor of refrigerant or refrigerating oil has come into the compressor cylinder;...

  • Page 28: Analysis Of Troubles And Troubleshooting

    Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S make a hasty conclusion based on only one abnormal phenomenon .It is advisable to find out two or more abnormal phenomenon ,or conduct troubleshooting comprehensively with the aid of instruments or other ways ,because several kinds of troubles may share a common abnormal phenomenon ,and two or more abnormal phenomena may occur simultaneously due to a certain trouble .With this method ,you can reject some suspicious troubles and finally make a correct...
  • Page 29 Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S current of the compressor rises ,loose frost forms on the evaporator ,the refrigerator temperature drops slowly ,and frost appears on the gas return tube . b) In case excessive refrigerant has been charged, the liquid refrigerant that cannot evaporates in the evaporator will return to the compressor, and thus a phenomenon of “liquid striking”...
  • Page 30 Rev. Ref1001S008V0 Model:HRF-660S If a direct cooling refrigerator is to be used for a prolonged period of time ,be sure to defrost its evaporator regularly ;if you fail to do so ,the frost layer on the evaporator tubing will become thicker and thicker .Heat conduction will be severely affected when the whole tubing is wrapped with a...

  • Page 31: No Refrigerating

    Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 8-3-2 No Refrigerating The phenomenon that the compressor runs normally, but no frost (or only a little frost) appears on the evaporator, and the refrigerator temperature does not drop down is called “no refrigerating”. There are many causes for this trouble and it is relatively complicated, too.
  • Page 32 SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S abrupt gush is heard and the gas suction pressure rises as well ,it can be confirmed that the trouble is caused by ice clogging . Remedy If there is too much moisture in the refrigerating system, it is advisable to release the refrigerant, purge the tubing with nitrogen, and then charge the system with the filtered refrigerant.

  • Page 33: Sudden Stops

    Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S Method for making judgment It is quite difficult to differentiate this trouble from others because they often have similar symptoms. In repairing, firstly, hear attentively if there is some abnormal sound coming from the compressor...
  • Page 34 Rev. Ref1001S008V0 Model:HRF-660S Check up how the air has been left in the refrigerating system. Generally, there are two possibilities: one is that the air has been sucked into the system when repairing due to carelessness, or it has not been purged out totally when evacuating the system;...

  • Page 35: Compressor Could Not Be Start

    Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 8-3-4 Compressor could not be start In case the compressor cannot be started, you must find out the origins of this trouble through checkup step by step, because probably there are many causes, including those electrical and mechanical.

  • Page 36: Problem With Ice Making

    Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S sensing disc and then immerse it into warm water to see whether the contacts actuate, if not, it can be preliminarily determine that temperature sensing agent has leaked out, and it must be replaced with a new thermostat.

  • Page 37: Electric Leakage Of Refrigerator

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 4) No stoppage of compressor due to damaged heat-insulation layer inside case body and/or door seal Analysis of Trouble When the heat-insulation layer inside the case body deteriorates or the door seal is not closely touches the door frame, the temperature in the refrigerator will rise and makes the compressor running continuously.

  • Page 38: Stronger Vibration And Loader Noise

    SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S 8-3-7.Stronger vibration and loader noise 1) Refrigerator placed improperly a) Uneven ground Uneven ground will cause the refrigerator to be placed unsteadily ,causing stronger vibration and noise during its operation . b) Leveling screws not properly adjusted If the leveling screws on refrigerator legs have not been adjusted properly, vibration and noise will still occur even if the refrigerator has been placed on a level ground.
  • Page 39 SERVICE MANUAL Issue 201001 Rev. Ref1001S008V0 Model:HRF-660S Sincere forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com...

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