Haier DW-40L188, Service Manual

Page 1: ...Service D e Manua DW 40L al D D 92 eep Ref DW 40L92 D DW 4 frigerato DW 40L188 Haier M 40L188 or uprig DW 40L26 edical L 8 ht 62 Laboratory DW 40 FILE N y Product 0L262 No HMRSM ts Co Ltd M 002 03 ...

Page 2: ...2 25 Effective models This service manual is effective for following models Model name Product code Voltage V Frequency Hz Plug type DW 40L92 220 50 All DW 40L188 220 50 All DW 40L262 220 50 All ...

Page 3: ...mponents and Function Modules 9 Disassemble Steps 10 Screen Control System 13 Control System Principle 16 System Schematic Diagram 17 System Circuit Diagram 18 Inspection and Maintenance Process for Typical Error 19 FAQ A 20 Troubleshooting 21 How to deal with poor cooling 22 Testing Date 23 ...

Page 4: ... Deep temperature storage refrigerator with the temperature at characteristic temperature 40 horizontal and rated effective volume 262L DW XX X XXX X Design No is expressed with pinyin character sequence Rated volume value is shown with L Classification of low temperature cabinet W is horizontal and L is vertical It shows the temperature at the characteristic point inside cabinet without minus mar...

Page 5: ...anufacturer or be replaced by qualified personnel 3 Hazardous articles of inflammable explosive materials such as acid and alkali with strong corrosion are prohibited in the refrigerator 4 Please don t use flammable spray closely to avid fire 5 When there is inflammable gas such as coal gas leakage Shut the valve for leakage Open the door and window for ventilation Don t pull out or insert power p...

Page 6: ... in the cabin on rear bottom of the refrigerator with cabin cover The condenser is located at rear of the refrigerator The evaporimeter is located inside the refrigerator as rack DW 40L262 Electronic control assembly Drawer Door handle Display Door seal ...

Page 7: ...7 25 Dimensions DW 40L92 ...

Page 8: ...6 63 84 Compressor DANFOSS SC12CL DANFOSS SC12CL DANFOSS SC12CL Freezing agent R404A 160g R404A 220g R404A 220g Outer dimension WxDxH mm 597 610 860 597 610 1475 657 685 1665 Inner size WxDxH mm 435 410 635 380 410 1225 480 462 1430 Note when surrounding temperature is 25 the inner lowest temperature for empty refrigerator can be down to 40 when surrounding temperature is higher than 32 the inner ...

Page 9: ... red light alarming Starting up delay protection function 3 Refrigerating system Imported famous brand DANFOSS compressor is adopted Environment protection free refrigerant German famous brand EBM fan High density insulation layer with heat preservation The evaporimeter is used as rack directly for speed refrigeration 4 Humanity design Drawer design for convenient utilization LED digital temperatu...

Page 10: ...crew on th ole on door ut with hand rs on the do ndlebar with onto M6 bolt Disass old handle W 40L262 18 ar replacem he door body body with dr d riveter on d or and align that of rivet t 10 25 semble ebars 88 92 machi ent y with screw rill toΦ9 and door body n the hole on t nut T e Steps ine is easily wdriver and p d that on ha n spacer with M6 Rivet N Two PS spa s y loosen the put aside andlebar ...

Page 11: ...body ttention du hall not be pu king PS spac washer ems after r et nut is tigh S spacers ar washer is u ps for con ollowing scr are wires c S y with screw uring repla ulled tightly cers replaceme ht re used used ntrol board rews marke onnecting c pring washe 11 25 wdriver acement ent d d 1 and 2 ontrol panel er in following and refrige g figure the rator as sho Fix the with sc e control bo own in ...

Page 12: ...and ports Mark 1 in the above figure is connecting port for power line to connect power line mark 2 in the above figure is sensor port to connect sensor line 5 Installation steps for control board Installation shall be according to 4 4 disassembly steps oppositively ...

Page 13: ... less than 5 minutes if the time is over 5 minutes please take the actual time for operation On off temperature of press for each set grade 1 Set temperature 10 11 12 13 14 15 16 17 18 19 Start up temperature 8 9 10 11 12 13 14 15 16 17 Shut down temperature 10 11 12 13 14 15 16 17 18 19 Set temperature 20 21 22 23 24 25 26 27 28 29 Start up temperature 18 19 20 21 22 23 24 25 26 27 Shut down temp...

Page 14: ...g in failure if the refrigerator is in quick freeze status quit the corresponding light will be off 7 Break down memory function When the frozen food cabinet is broken down and electrified again the memory function can operate according to status set before breaking down Display control quick freeze normal control F1 display temperature display 8 Temperature adjustment principle and alignment This...

Page 15: ...er or equal to LS or it can not be set c Once the HS and LS are set press both temperature setting buttons simultaneously The set temperature shall be set within HS and LS including only d When both HS and LS are set 25 the set temperature shall be 25 Set temperature can not be adjusted and the quick freeze function fails ...

Page 16: ...en sends out stop order to compressor to shut it down When the inner temperature is returned 1 higher than set temperature the chip sends out stop order via the same procedure to shut the compressor down If temperature return in the refrigerator is too fast less than 5 minutes then take it as 5 minutes 2 Working principle for fan on and off The fan is in synchronous operation with the compressor P...

Page 17: ...17 25 System Schematic Diagram Evaporator Condenser Dry filter Heat return Compressor Capillary Vent pipe ...

Page 18: ... compressor M2 cooling fan D electronic temperature controller Kh starting relay B sensor C1 starting capacity XP power plug 1 M A K C1 2 M A K XP D 电 源 插 头 电 子 温 控 器 启 动 继 电 器 D B t N PE L 2 启 动 电 容 冷 却 风 机 传 感 器 压 缩 机 C1 M B M 1 XP ...

Page 19: ...1 The set temperature is high Reset 2 The freezing agent is leaking Find leaking point and weld Refill freezing agent 3 The temperature controller is damaged Change the temperature controller 4 The capillary or system is dirt and stopped Clean capillary or change filter 3 The screen doesn t display temperature It displays F1 1 The temperature sensing probe is in short or open circuit Inspect the t...

Page 20: ...eeds no resolution Why there is serious frosting in DW 40L262 188 Answer it may caused by loosen door or frequent opening the door or one of the small hole allowing condenser to enter the refrigerator is not plugged up This needs to be disposed by service persons Moreover regular defrosting is required to keep better effect normally once per 1 2 months Error of DW 40L series sensors and how does p...

Page 21: ... switch is damaged Change the pressure switch 3 High temperature level compressor has poor refrigeration Repair high temperature level refrigerating system 3 Fan does not rotate 1 Fan wiring is loose Checking the wiring 2 Fan blades are blocked by foreign matters Checking and clean them 3 Fan is damaged Change parts 4 High temperature in cabinet 1 The temperature setting of outage is too high Re s...

Page 22: ...uit Check the fan and the control circuit Check the compressor and control circuit Check whether there is a refrigerant leakage repair leakage High temperature alarm Lights flashing Check the display board LED lights and control circuit After 15 minutes flashing alarm sound alarm Check the control panel buzzer and control circuits Test Input voltage display is normal Check the compressor and contr...

Page 23: ...e SN Model Power supply Ambient temp Cooling time from ambient temp to 80 min 1 220 240V 50Hz 25 3 360 2 220 240V 50Hz 420 3 220 240V 50Hz 208 230V 60Hz 115V60Hz 420 Cooling Rate Ambient temp The third floor center temperature ...

Page 24: ...emperature of the parts sn model Power supply Ambient temp Cooling system temperature H IN H OUT L IN E IN E OUT 1 220 240V 50Hz 25 3 32 32 32 86 85 2 220 240V 50Hz 3 220 240V 50Hz 208 230V 60Hz 115V60Hz 4 220 240V 50Hz 208 230V 60Hz 115V60Hz ...

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