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SERVICE MANUAL
.
Ref0907S005V0
Order NO
Refrigerator
MODEL: HRF10WNDWW
HRF12WNDWW
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.
◎2009(HAIER ELECTRICAL APPLIANCES COR. LTD)
All right reserved. Unauthorized copying and distribution is a violation of law.
Haier Group
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Summary of Contents for Haier HRF10WNDWW
- Page 1 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. ◎2009(HAIER ELECTRICAL APPLIANCES COR. LTD) All right reserved. Unauthorized copying and distribution is a violation of law.
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Page 2: Table Of Contents
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW Contents Table of Contents ················································································································ 2 1. General Information ······································································································ 3 1-1. General guideline ····································································································· 3 1-2. Insurance Test ········································································································· 3 1-3. How to read this Service Manual ·············································································· 4 2. Product Feature ············································································································ 5 2-1. -
Page 3: Chapter 1 General Information
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW 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 4: How To Read This Service Manual
Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW 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 our hand is wet, else we may be glued to the surface. -
Page 5: Product Feature
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW Chapter 2 Product Feature 2-1. SPECIFICATIONS Photo Model HRF-10WNDWW HRF-12WNDWW Commercial brand Haier Haier Product description Refrigerator Refrigerator Type of appliance (FS=free standing / BI= built-in) Climate class (N=16-32℃ ST=16-38℃ T=18-43℃) Key features... - Page 6 SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW White White Top cover White White Cabinet White White Door glass White White Door frame White White Fascia panel/handle Door F=Flat/R=Rounded/S=Streamline Hinge (r=right/l=left/reversible) r/reversible r/reversible Shelves Number Tape grill grill Colour White...
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Page 7: External Views
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW 2-2. External views A= freezer shelf B= thermostat C= shelf D= crisper cover E= crisper F= door shelf G= coke shelf H= butter tray 2-3. Function Schedule 1. Air-cooling and automatic defrosting 2. -
Page 8: Disassembly And Assembly
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW Chapter 3 Disassembly 3-1. Air passage disassembly Use the Cruciform screwdriver to remove the four screws which fixed the air passage cover. Hold the protruding part of the air passage cover with our hands, Shake it slightly to loose it, and then take off the air passage cover. -
Page 9: Thermostat Disassembly
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW 3-2. Thermostat disassembly Use the Cruciform screwdriver to take off the three screws which fixed the thermostat house. Pay an attention to cable connection part in disassembly process, disconnect the cable terminals and then we could take off the thermostat house. - Page 10 SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW The insert terminals of the Thermostat cable connect to the defrost timer and Purple cable connect to the lamp seat .It must be fixed the defrost timer to the thermostat house with screws.
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Page 11: 3-3.Door Disassembly
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW 3-3.Door disassembly Use the cruciform screwdriver to take off the screws which fixed the top hinge cover, and remove the hinge cover. Remove the screws which fixed the top hinge, And take off the top hinge. -
Page 12: System Flow Principle
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW Chapter 4 Disassembly 4-1. Refrigeration flow chart 1 Compressor 2Condenser 3Filter drier 4Capillary tube 5Evaporator 6Fan motor 4-2.Flow of cold air A=freezer door B=bottle shelf C=cold air suction hole D=egg box cover E=bottle shelf... -
Page 13: Chapter 5 Circuit Diagram
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW Chapter 5 Circuit diagram 5-1. Brief principle diagram A =plug B=switch C=lamp D=ice maker (preparative) E=valve (preparative) F=thermostat G=defrost timer H =thermostat I=defrost heater J= fuse K=fan motor L=fan motor M=overload protector... -
Page 14: Chapter 6 Trouble Shooting
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW Chapter 6 Trouble shooting 6-1. Poor cooling... -
Page 15: No Defrosting
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW 6-2. No defrosting... - Page 16 SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW...
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Page 17: Quick Check
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW Chapter 7 Quick check 7-1. 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 18: Common Troubles In Refrigerators And Their Remedies
2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW 4). For the direct cooling refrigerator ,a kind of irregular crack sound can be often heard when the compressor is running for a certain period of time or has just stopped its running .This sound is caused by the stress relief due to expansion and contraction when temperature changes ,and will not affect the normal application of refrigerator . - Page 19 Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW has formed on part of the evaporator or there is no frost attached to it. d) Pay attention to the speed of temperature drop inside freezer compartment .It is abnormal if the speed of temperature drop is obviously slower than the corresponding normal speed.
- Page 20 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW temperature of its upper part should be higher than that of its lower part (or its right part is hotter than its left part, depending on the type of condenser coil), this indicates that the refrigerant is circulating. If the condenser is not hot, this means the leakage of refrigerant .In case the condenser radiates heat for...
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Page 21: Analysis Of Troubles
SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW 7-3 Analysis of Troubles 7-3-1 Sudden stop of Compressor during Its running The cause of sudden stop of a compressor during its running is mostly that the gas suction pressure and/or discharge pressure... - Page 22 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW been purged out totally when evacuating the system; the other is that there are leak points at the low pressure end of the refrigerating system. Leak points appear mostly in those low temperature parts or assemblies, because the evaporation temperature is lower for such low temperature devices, especially at the low pressure end, it is easier for the air goes into the system.
- Page 23 SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW 3) Sudden stoppage due to other causes Normal Stoppage Start and stop of the compressor is generally controlled by a thermostat. When the temperature in the refrigerator reaches its desired value, the thermostat will shut down the compressor automatically.
- Page 24 Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW Measure the voltage with a voltmeter, if it is really too low, give directions to the user for buying a stabilizer so as to step up the voltage, thus normal operation can be achieved.
- Page 25 SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW Remedy Dismantle it to repair, or replace it with a new one. c) Poor electric contactor in thermostat Analysis of Trouble Burnout of contactor and leakage of temperature sensing agent may occur generally.
- Page 26 SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW “coldest”. 2) Thermostat is malfunctioning and makes the compressor running continuously Analysis of Trouble When the thermostat doesn’t work normally, it will make the compressor run continuously, and hence very low temperature will be achieved in the refrigerator. The fault is generally due to the fact that the contacts of the thermostat cannot be released.
- Page 27 SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW respectively. 5) Too much food is placed in the refrigerator, or is placed too densely, resulting in poor ventilation or poor conditions for temperature sensing, and hence no stoppage of the compressor.
- Page 28 SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW 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 29 SERVICE MANUAL Issue 2009-7-24 Rev. Ref0907S005V0 Model: HRF10WNDWW/HRF12WNDWW to suck and discharge the refrigerant. If the valve block is broken, the refrigerant can not be discharged, and hence no refrigerating can be achieved. Method for making judgment It is quite difficult to differentiate this trouble from others because they often have similar symptoms. In...
- Page 30 Sincere forever Haier Group Haier Industrial Park, No.1, Haier Road 266101, Qingdao, China http://www.haier.com...