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SERVICE MANUAL

Model: HRF10WNDWW/HRF12WNDWW

5

Issue   2009-7-24 

Rev.  Ref0907S005V0

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)

 

 FS 

FS 

Climate class (N=16-32

℃

 ST=16-38

℃

 

T=18-43

℃

) 

 

T 

T 

Key features 

 

 

 

 

Gross capacity 

L 

286 

343 

Total net capacity 

L 

283 

340 

Defrosting (Manual-Automatic) 

 

Automatic 

Automatic 

Defrosting water outlet 

 

Yes 

Yes 

Air circulating ventilator 

 

Yes 

Yes 

Kind of coolant (R134a/R600a) 

 

 R134a 

R134a 

Foaming components   

 

 

CP-IP 

CP-IP 

Technical data 

 

 

 

 

Voltage / frequency 

V/Hz 

115~ / 60 

115~ / 60 

Input power   

W /A 

60 

 

Length of cable / incl. plug 

cm 

200 

200 

Temperature range (from>to) 

°C 

4

～

 -18 

4

～

 10 

Aesthetics 

 

 

 

 

Colours 

 

 

 

 

Summary of Contents for HRF10WNDWW

Page 1: ...ir 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 infor...

Page 2: ... views 7 2 3 Function schedule 7 3 Disassembly and assembly 8 3 1 Air passage disassembly 8 3 2 thermostat disassembly 9 3 3 Door disassembly 11 4 System flow principle 12 4 1 Refrigeration flow chart 12 4 2 Flow of cold air 12 5 Circuit diagram 13 5 1 Brief principle diagram 13 6 Trouble shooting 14 6 1 Poor cooling 14 6 2 No defrosting 15 7 Quick check 17 7 1 Normal phenomena 17 7 2 Common Troub...

Page 3: ...ge and capacity before testing with any kinds of instruments 5 Watch if the upper door is open when we 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 when repair any parts of the evaporator so that scratches by the sharp fins can be avoided 8 If there is a breakdown ...

Page 4: ...this manual The illustration and photos used in this Manual may not base on the final design of products which may differ from the products in some way 1 3 How to read this Service Manual 1 3 1 Using Icons Icons are used to attract the attention to specific information The meaning of each icon is described in the table below Note A note provides information that is not indispensable Caution A caut...

Page 5: ...built in FS FS Climate class N 16 32 ST 16 38 T 18 43 T T Key features Gross capacity L 286 343 Total net capacity L 283 340 Defrosting Manual Automatic Automatic Automatic Defrosting water outlet Yes Yes Air circulating ventilator Yes Yes Kind of coolant R134a R600a R134a R134a Foaming components CP IP CP IP Technical data Voltage frequency V Hz 115 60 115 60 Input power W A 60 Length of cable in...

Page 6: ...hite White Adjustable Yes Yes Drawer numbers 1 1 Crisper Transparent Transparent Equipment accessories Control panel Control panel interior exterior interior interior Thermometer interior exterior interior interior Adjustable thermostat Yes Yes Interior light W 10 10 Adjust feet Front Front Castors Rear Rear Product net dimensions Unit dimensions H W D mm 1540 600 651 1540 600 726 Depth of open do...

Page 7: ...c defrosting 2 Round door design and fashion handles 3 Energy saving 4 Adjustable humidity crisper 5 Isolated food shelf 6 Crisper with adjustable moisture Moisture in the crisper can be adjusted for satisfaction of vegetables and fruits storage A freezer shelf B thermostat C shelf D crisper cover E crisper F door shelf G coke shelf H butter tray ...

Page 8: ... screws which fixed the air passage cover 2 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 3 In the disassembly process pay an attention to the cable behind the air passage cover disconnect the cable terminals and then we could disassemble the cover 4 We assemble it according to reverse order ...

Page 9: ...le connection part in disassembly process disconnect the cable terminals and then we could take off the thermostat house 3 Removed the original thermostat take the new thermostat probe to the zone for Feeling temperature of the thermostat house 4 Then use the Aluminum foil tape to seal the temperature probe 5 The connection of the thermostat C connect to brown cable L connect to red cable and gree...

Page 10: ...ls 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 7 Make sure to seal the sponge of the thermostat openings to prevent the cold air leaking 8 We assemble it according to reverse order ...

Page 11: ...rm screwdriver to take off the screws which fixed the top hinge cover and remove the hinge cover 2 Remove the screws which fixed the top hinge And take off the top hinge 3 Take off the screws which fixed the central hinge 4 Hold the REF and FRZ door with our hands and drag it slightly and then we could take off the door ...

Page 12: ... Flow of cold air 1 Compressor 2Condenser 3Filter drier 4Capillary tube 5Evaporator 6Fan motor A freezer door B bottle shelf C cold air suction hole D egg box cover E bottle shelf F bottle shelf G vegetable container H bottle shelf I Ref door J FRZ fan motor K wire L evaporator N Ref air passage O vegetable container cover P compressor ...

Page 13: ...pressor and hence the refrigerator temperature Low Temperature Compensation in the above schematic diagram When the ambient is below the set temperature the switch will be closed and the heating will work thus ensuring the normal start and operationofrefrigeratoratlowerambienttemperature insuchcase thefreezercompartmenttemperature can reach a good point A plug B switch C lamp D ice maker preparati...

Page 14: ... SERVICE MANUAL Model HRF10WNDWW HRF12WNDWW 14 Issue 2009 7 24 Rev Ref0907S005V0 Chapter 6 Trouble shooting 6 1 Poor cooling ...

Page 15: ... SERVICE MANUAL Model HRF10WNDWW HRF12WNDWW 15 Issue 2009 7 24 Rev Ref0907S005V0 6 2 No defrosting ...

Page 16: ... SERVICE MANUAL Model HRF10WNDWW HRF12WNDWW 16 Issue 2009 7 24 Rev Ref0907S005V0 ...

Page 17: ...pressor of a refrigerator has just stopped running a rumbling sound can be heard from inside its evaporator This is a sound caused by the flowing of refrigerant in the evaporator tubing Because the pressure difference is still greater after the compressor has just stopped running the refrigerant will flow for a certain time therefore this sound is a normal phenomenon 2 A click sound can often be h...

Page 18: ...les occurring within a union time is called its failure rate Making a comparison between the control circuit system of a refrigerator and its refrigerating system we can find that the failure rate of the former is higher and that of the thermostat is the highest In troubleshooting the first thing you must do is to determine where the trouble comes from the control system or the refrigerating syste...

Page 19: ...ectric 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 vapour of refrigerant or refrigerating oil has come into the compressor cylinder if it sounds like dang dang a striking sound of metal parts inside the compressor this means that some moving parts have loosened note ...

Page 20: ...n clogged resulting in an obstructed flowing of refrigerant thus causing a drop in temperature due to throttling d Feel the temperature of exhaust gas from the refrigerating system the exhaust gas should be very hot and this is the normal working state For those refrigerator with enclosed type of compressor refrigerating system no frost or dew drop will from on the gas suction tube otherwise there...

Page 21: ...menon of liquid striking may occur too Meanwhile dew or frost condensation may occur on the gas return tube and the gas discharge pressure will obviously rise when it reaches the threshold value the protective relay will actuate and shut off the power supply to the compressor Remedy Open the tubing re evacuate and then charge the system with a proper quantity of refrigerant b Air left in the syste...

Page 22: ... the temperature sensor s position until the compressor can be started and stopped normally If this cannot be achieved and the stoppage still occurs repeatedly it is most likely that the mechanical parts or contacts are out of order disassemble the thermostat make a thorough checkup and repair it b Overload of electric motor Analysis of Trouble Probably too many things have been put into the refri...

Page 23: ...alysis of these phenomena fine out its real cause and take correct measures to remove this trouble Remedy a Check the input power circuit to see whether where is voltage of the power supply namely the circuit which is connected to the knife switch This can be determined with an avometer or a test pencil If a blown fuse is found ascertain and remove its cause then replace it with a new one of the s...

Page 24: ... it can be preliminarily determine that temperature sensing agent has leaked out and it must be replaced with a new thermostat 4 Motor troubles and other electric faults a Motor windings have been burned or short circuited between turns Analysis of Trouble When motor windings have been burned or short circuited between turns the fuse will be blown repeatedly and the blowout occurs particularly at ...

Page 25: ...Judgment of seizing shaft and piston After the refrigerator has been powered on the compressor will not start and run but a slight hum sound can be heard and several seconds later thermal protective relay will actuate and make the contacts open this process will occur repeatedly but the compressor cannot be started 7 3 3 Compressor won t stop Sometimes the compressor will run continuously for seve...

Page 26: ...ated value the thermostat won t work and thus the compressor runs continuously When the evaporation temperature in the system is too high the temperature sensing agent in the temperature sensor is also hotter therefore the thermostat is unable to cut off the power supply to the compressor and stop it Remedy If it has been found that the refrigerant in the system is insufficient in quantity recharg...

Page 27: ...ith your hand When you test them with a test pencil its neon lamp will come on In that case the first thing you need to do is to determine whether the grounding is perfect If the grounding is no problem turn off the refrigerator immediately then check the insulation of electric circuits with an avometer b Serious electric leakage Never touch the case body of the refrigerator its door handle or oth...

Page 28: ...or vanishes If the refrigerator has not been levelly placed put a level meter on its top table and adjust the leveling screws on its legs In case noise occurs from the compressor strike different locations on the side surface of its case using a rubber hammer or hand hammer with a wood block in between so as to determine whether the suspended springs are out of balance or being seized 7 3 6 Cloggi...

Page 29: ...ike against the cylinder and feel the compressor casing with your hand to ascertain whether it is too hot this is also helpful to the troubleshooting secondly measure the pressures at the high and low pressure ports of the compressor with pressure gauges if the gas suction valve block is broken the suction pressure gauge pointer will swing violently and the suction pressure is very high whereas wh...

Page 30: ...Sincere forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com ...

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