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Haier DW-40L188 Service Manual

Other manuals for DW-40L188: Service Manual, Instruction Manual
Manual is about: Deep Freezer-upright

Summary of DW-40L188

  • 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: Content

    3 / 25 content 【designation】 .......................................................................................................................................................... 4 【safe caution】.......................................................................................................

  • Page 4: 【Designation】

    4 / 25 【designation】 regulations for type naming: note: rated volume can be the gross volume or effective volume; the manufacturer can decide it by him according to the actual situation. The effective volume value must be marked on the nameplate whether effective volume or gross volume is marked in ...

  • Page 5: 【Safe Caution】

    5 / 25 【safe caution】 1. The machine is using an ac 220v/50/60hz power. If the voltage used is lower than 198v or higher than 242v, an auto stabilizer above 1000w shall be equipped. Power line that required for lengthening shall be with a cross section no less than 1mm. 2. An independent private jac...

  • Page 6: 【Product Appearance】

    6 / 25 【product appearance】 remark: the press is located 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...

  • Page 7: Dimensions

    7 / 25 【 dimensions 】 dw-40l92.

  • Page 8: 【Product Specifications】

    8 / 25 【product specifications】 model dw-40l92 dw-40l188 dw-40l262 climate type n n n protection type against electric shock i i i effective volume (l) 92 188 262 rated voltage 220v/50hz/60hz 220v/50hz/60hz 220v/50hz/60hz input power (w) 220 290 340 net weight (kg) 46 63 84 compressor danfoss sc12cl...

  • Page 9

    9 / 25 【components and function modules】 1. Temperature control it is controlled by microcomputer with digital display for temperature while the inner temperature can be adjusted from -10℃～ -40 ; there is parameter setting for super low temperature alarming and break ℃ down memory. 2. Safety system ...

  • Page 10: Disass

    1. Replace since the o following to a. Unscrew b . Enlarge t c . Strain the d. Place two e. Align the f. Put a spri ement pro riginal hand be obeyed the tapping the screw ho e m6 rivet nu o ps spacer hole on han ng washer o 【 ocess for o dlebar of dw for handleba screw on th ole on door ut with hand...

  • Page 11

    G. Fix the ha 2. Matters the om forg 3. Self-ch whe whe whe 4. Disasse uns fetched. Atte andlebar on s needs at e rivet nut sh itting or lack get spring w ecking ite ether the riv ether two ps ether spring emble ste screw the fo ention: there to door body ttention du hall not be pu king ps spac wash...

  • Page 12

    12 / 25 the following is details for connection of computer board 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 accordi...

  • Page 13: 【Screen Control System】

    13 / 25 【screen control system】 1 external view of computer board 2 basic parameters for computer board rated frequency 50/60hz rated voltage 220 -240 a.C rated power 3w control current for press under normal operation shall be no more than 10a the 5 minutes start delay for the first energization of...

  • Page 14

    14 / 25 3 temperature display function the actual temperature displayed is integer. The measured value is rounded off to integer. In normal situation, the temperature shall not hop, with all temperature variable being ±1 /min; ℃ the display range is from +34 to ℃ -45 , with temperature higher than +...

  • Page 15

    15 / 25 note: a. Temperature range for hs and ls is 10~42℃。 b. When setting temperature for hs and ls, the hs value shall be higher 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 a...

  • Page 16

    16 / 25 【control system principle】 1 working principle for press on and off when inner temperature reaches set temperature, induct the temperature by sensor and change into electrical signal which is sent to control chip of computer board. By pre-set procedure, the chip then sends out stop order to ...

  • Page 17

    17 / 25 【system schematic diagram】 evaporator condenser dry filter heat return compressor capillary vent pipe.

  • Page 18: 【System Circuit Diagram】

    18 / 25 【system circuit diagram】 m1 – compressor m2 – cooling fan d – electronic temperature controller kh – starting relay b – sensor c1 – starting capacity xp – power plug 1 m ~ a k c 1 2 m ~ a k x p d 电 源 插 头 电 子 温 控 器 启 动 继 电 器 d b t n p e l 2 启 动 电 容 冷 却 风 机 传 感 器 压 缩 机 c 1 m b m 1 x p.

  • Page 19

    19 / 25 【inspection and maintenance process for typical error】 problem points reason analysis maintenance measures 1. The press can not start 1. The fuse is burned out. Change the fuse 2. Connecting parts of cabinet is damaged. Change socket connector. 3. The connecting line for electric cabinet is ...

  • Page 20: 【Faq&a】

    20 / 25 【faq&a】 question answers measures able to adopt 1. Inner temperature is too high or too low. Can be resolved by adjusting and control of temperature. See detailed operation in instruction manual. 2. Sides of the refrigerator is hot. There is anticoagulant near refrigerator open on side surfa...

  • Page 21: 【Troubleshooting】

    21 / 25 【troubleshooting】 fault analysis maintenance measures 1.High temperature level compressor fails to start 1. User’s fuse burns out change the fuse 2. Machine storehouse wiring connector plugs s are damaged change the connector plugs 3. Bas wire contact check contact and make in good condition...

  • Page 22

    22 / 25 【how to deal with poor cooling】 high-temperature stage fan is normal low-temperature stage fan is normal refrigerator temperature ≥ high temperature alarm set temperature (high temperature alarm set temperature ≥ run set temperature +5 ° c) check the power is normal check the fan and the con...

  • Page 23: 【Testing Date】

    【testing date】 cooling rate 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

    Temperature of the cooling system parts temperature 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 115...

  • Page 25: Qin

    R room 403 haier me 3d, brand we insp dical & la building, qin ebsite: ww ired liv aboratory haier indu gdao ch ww.Haierm ving products ustrial par ina medical.Co co., ltd. Rk, no.1 ha om aier road.