SERVICE MANUAL
Contents
1. aier SERVICE MANUAL Order NO Ref1409S001V0 Refrigerator MODEL HA10TG31SW HA10TG31SB HA10TG31SS A 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 2014 HAIER ELECTRICAL APPLIANCES COR LTD All right reserved Unauthorized copying and distribution is a violation of law Haier Group SERVICE MANUAL la Model HA10TG20SW S B eee Contents Chapter 1 General Information ooocccccccnccccnnconnnnnonnnccnononnnnconnnnonnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnns 3 OAE EET aE c E E E E EE EE E A E E E E A ol sants sender 3 MZ MR SU e e EE 3 1 3 How to read this Service Manual E 4 Enabler2 Product EE 5 Ee Ee 5 2 2 Compressor Parameter EE 6 E E A o o e PP en 7 2 4 Defrosting Heater Parameter 7 2 D AL En 8 eo AAA O Ro O E A 8 Chapters o AAA A 9 3 1 FRZ Air duct disassembly a RENE 9 3 2 REF air duct assembly disassembly RENE 10 Ba o o A IU CEE Egea 12 Chapter 4 System f2. B door rack C Ref door D door rack E can shelf F door rack G crisper H fan motor I fan cover J freezer shelf K evaporator L defrost heater M air tower N LED O ref shelf P compressor SERVICE MANUAL Chapter 5 Circuit diagram 5 1 Brief principle diagram A POWER PLUG B TEMPERATURE PANEL C DOOR SWITCH D LED LAMP E CONTROL PANEL F FAN MOTOR G1 DEFROST SENSOR G2 SENSOR ENVIRONMENT G3REFRIGERATOR SENSOR H1FUSE 1 H2FUSE 2 DEFROST HEATER J OVERLOAD PROTECTOR K COMPRESSOR L PTC M RUNNING CAPACTOR Brief Description of Control Principle The refrigerator is controlled by control PCB REF sensor controls the operation of compressor also fridge temperature When ambinet is too low ambinet sensor on control PCB will adjust the operation ON OFF point to ensure fridge temperature SERVICE MANUAL 5 2 Control PCB diagram SERVICE MANUAL Model HA10TG20SW S B 5 3 Defrosting Principle 1 A defrost cycle will start after an accumulated compressor run time of 4 hours Automatic Defrost 2 1 It could enter defrost after an accumulated compressor run time of 3 48 hours according to ambinet temperature door open close 2 2 It will stop defrosting when defrost sensor temperature reach 12 Cor the defrost time is up to 50 munutes 2 3 If the defrost time does not reach 50 minutes but the temperature reaches 12 C the defrost will be stopped immediately 3 Rated defrost heater power 1
3. broken Check if the voltage of heater N on PCB ed gt Eer in the freezer room if yes change the fuse is normal Normal is 115V Check the resistance of heateron PCB Normal resistance is 930 5 Change PCB If defrost time is too long and cause temperature too high it needs to check defrost sensor SERVICE MANUAL Issue 2009 7 24 ev Ref0907S005V0 Model HA10TG20SW S B Sincere forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com
4. 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 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 115V with a frequency of 60Hz 10 A big fluctuation of voltage exceed the range 100 120V may cause a start failure of the refrigerator a burn out of the control panel and compressor or an abnormal sound from the compressor in operation SERVICE MANUAL ET Rev Ref0907S005V0 Model HA10TG20SW S B ef09 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 our hand is wet else we may be glued to the surface 14 Pull out the plug of power supply during clearan
5. 50W Note It must be in rated voltage 115V 60Hz above parameters is practical 5 4 Sensor location Defrsot SS REF Sensor SERVICE MANUAL Model HA10TG20SW S B e Sensor resistance TEMPERATURE FRZ Resistance K TEMPERATURE REF Resistance as e Ian EE SERVICE MANUAL Model HA10TG20SW S B e 6 817 6 680 1 6 162 6 038 AL D BI 556 E 544 e e sa Som Sa 480 pl A 2891 ll aa e aen am DL 4 BL wm OO DO A A gt A E up up N NO vi LA iN O1 P N N SERVICE MANUAL Rev Model HA10TG20SW S B 9 5 PCB Test 1 The products will enter compulsive starting mode if press the key one time on the control PCB In this mode the compressor and the fan motor start working 2 The same operation like step 1 again under compulsive starting mode The products will enter forcing defrosting mode Under this mode the compressor and fan motor stop working Defrost heater starts working 3 The same operation like step 1 under forcing defrosting mode it will back to normal SERVICE MANUAL Model HA10TG20SW S B Issue 2009 7 24 Ref0907S005 VO Chapter 6 Trouble shooti 6 1 Poor cooling Poor cooling Check if the voltage of home power NO supply is normal If door is open frequently and the ambient YES temperature is too high Whether user has put much food in the refrigerator or foods block the air outlet Y
6. ES Whether the refrigerator near heat source NO YES Check door gasket if exist gap between gt the door and cabinet Temperature rise is very small although compressor running all along Whether the volume of evaporator frosting YES is evenly YES NO If the REF Knob setting is reasonable Adjust temperature setting YES ng Connect to power supply Decrease the opening frequence 1 Don t put too much food into the refrigerator once 2 Inner compartment should keep some gap so that the air flows and do not block the aire outlet 3 Hot food should be cooled prior to being stored Don t put refrigerator near hot source or sunshiny place Other objects around it should be maintained 10 20cm distance Adjust or replace door sealing gasket Refrigerant leakage EE Test system and repair cooling Refrigerant leakage or then recharge cooling system blocked refrigerant Check every sensor is normal or Reconnect the connector or if sensor is failure please change connector is connect well sensor YES NO Check PCB is normal Change PCB YES D D NO Check if compressor accessories and ___ Change compressor accessories or compressor compressor is normal SERVICE MANUAL SES Model HA10TG20SW S B Ref0907S005 VO 6 2 No defrosting No defrosting Check the voltage of Land N on PCB Check the power supply heck th i YES Check if the fuse is
7. ce or power outage Wait at least five minutes to resume the power supply in order to prevent damage to the compressor caused by continuous restart D Photo used in 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 we D A note provides information that is not indispensable gt Caution A caution is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get an unexpected result or has to restart part of a procedure Warning A A warning is used when there is danger of personal injury Reference UR A reference guides to find additional information on a specific topic SERVICE MANUAL TT Ref0907S005V0 Model HA10TG20SW S B Rev ef0 Chapter 2 Product Feature 2 1 Specifications o Type of appliance FS free standing Bl built in meim FS Climate class N 16 32 C ST 16 38 C T 18 43 o Unit dimensions H W D mm Packing dimensions H W D mm reueg SERVICE MANUAL Model HA10TG20SW S B 2 2 Compressor Parameter Check Method and Criterion Measure the resistance with a tester Ambient temperatu
8. low principle ooccccocncoccnncoccnnnoconnncnnnncnnnnononnnonnnnnnnnnnnnnnnnnnnnnonannnonnnnnnonnnnnnnnnenanenes 13 4 1 Refrigeration flow chat 13 oo ce AAPP E APP o USE o 14 chapter SCHC ANN teens e ae 15 Moe Aa 15 02 CONTO PCB OI PAR au on a aaah 16 5 3 Derosting PCN e E 17 SISO WS AUN ONG O eN o e OE O A te 17 DEE ZU Chapter 6 Trouble shooting sise 21 Gel EE 21 OZ INO OS oi in 22 SERVICE MANUAL E Rev Ref0907S005V0 Model HA10TG20SW S B ef09 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 After 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
9. re Room temperature 25 C ATH50U6 Abnormal Open 0 or Short Circuited 0 Q Measure the resistance with a tester Ambient temperature Room temperature 25 C PTC Starter Model QP3 4 7A G1 Abnormal Open 0 or Short Circuited 00 Measure the resistance with a tester Ambient temperature Room temperature 25 C Overload Model BT 8 120 Protector Normal Less than 1 O Abnormal Open 0 or Short Circuited OQ Measure the resistance with a tester Ambient temperature Room temperature 25 C Running Model CBB65A 2 Capacitor Normal Open ceQ Abnormal Short Circuited 00 SERVICE MANUAL E Rev Ref Model HA10TG20SW S B ef0907S005V0 2 3 Fan Parameter Characteristic 5 atea mequeney am 6 votagerange mme 2 4 Defrosting Heater Parameter SERVICE MANUAL Model HA10TG20SW S B Issue 2009 7 24 Ref0907S005V0 2 5 External views A freezer shelf B control panel F door shelf G coke shelf 2 6 Function Schedule 1 Air cooling and automatic defrosting 2 Round door design and fashion handles 3 Energy saving 4 Adjustable humidity crisper 5 Isolated food shelf 6 Crisper with adjustable moisture C shelf H butter tray D crisper cover I door rack E crisper SERVICE MANUAL SECH Rev Ref0907S005V0 Model HA10TG20SW S B e Chapter 3 Disassembly 3 1 FRZ Air duct disassembly Remove four screws which fixed
10. the air passage cover with screwdriver Hold the protruding part of the air passage cover as picture disconnect the fan motor cable connectors and then take off the air passage cover 3 We assemble it according to reverse order SERVICE MANUAL SSES Rev Ref0907S005 VO Model HA10TG20SW S B ev Ref09 3 2 REF air duct assembly disassembly Remove three screws which fixed the thermostat house with screwdriver Disconnect all the cable connectors take out the assembly 3 Take off the tape 4 Take off the sensor 5 Remove the LED cover SERVICE MANUAL Model HA10TG20SW S B Take off the LED Take off the knob Take off the foam assembly We assemble it according to reverse order SERVICE MANUAL SECH Rev Ref0907S005V0 Model HA10TG20SW S B ef09 3 3 Door disassembly Take off the screws which fixed the top hinge box and remove the hinge box 2 Remove the screws which fixed the top hinge take it off Take off the screws which fixed the central hinge Hold the REF and FRZ door with our hands and drag it slightly and then we could take off the door SERVICE MANUAL Chapter 4 System flow principle 4 1 Refrigeration flow chart 1 Compressor 2 Condenser 3 Filter drier 4 Capillary tube 5 Evaporator 6 Fan motor SERVICE MANUAL 4 2 Flow of cold air Ee ir V AE ee E Mor AL pos A freezer door
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