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Haier AFD626TGB, Service Manual

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SERVICE MANUAL

 

Model:AFD626TGW/R/B 

 

3

 

Issue  2010-10-25 

Rev.  Ref1010S025V0 

6. System Flow Principle ···························································································· 23 

  6-1. Refrigeration flow chart

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  6-2. Perspective of the refrigeration system

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  6-3. Air flow scenograph

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7. Circuit Diagram ······································································································· 26 

  7-1. Main control PCB diagram

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  7-2. Main control PCB connections

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8. Trouble Shooting ···································································································· 29 

  8-1. Common problems and solutions

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   8-1-1. No defrosting

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   8-1-2. Neither display nor start when powering on

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   8-1-3. Poor freezing effect accompanied by loud noise

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  8-2. Examination and solutions for other problems

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Summary of Contents for AFD626TGB

Page 1: ...ienced 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 se...

Page 2: ...partment drawer 11 3 2 Remove the display panel 11 3 3 Remove the rolling shelf 11 3 4 Remove the air duct 12 3 4 1 Removal of fridge air duct 12 3 4 2 Removal of freezing air duct 12 4 Control and Display System 14 4 1 Control and display panel 14 4 2 Error code display and sensor positions 18 4 2 1 Error code display 18 4 2 2 Graphic display of the sensor location 19 4 3 TEST MODE 20 5 Control P...

Page 3: ... system 23 6 3 Air flow scenograph 25 7 Circuit Diagram 26 7 1 Main control PCB diagram 26 7 2 Main control PCB connections 27 8 Trouble Shooting 29 8 1 Common problems and solutions 29 8 1 1 No defrosting 29 8 1 2 Neither display nor start when powering on 29 8 1 3 Poor freezing effect accompanied by loud noise 29 8 2 Examination and solutions for other problems 30 ...

Page 4: ...e 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 220V with a frequency of 50Hz 10 A big fluctuation of voltage exceed the range 187 230V ma...

Page 5: ...ed in the table below Note A note provides information that is not indispensable but may nevertheless be valuable to the reader such as tips and tricks Caution A caution is used when there is danger through incorrect manipulation may damage equipment loose data get an unexpected result or has to restart part of a procedure Warning A warning is used when there is danger of personal injury Reference...

Page 6: ...254 Net capacity refrigerator compartment L 160 160 160 Net muti use compartment L 34 34 34 Net capacity freezer compartment ice compartment L 60 60 60 Freezing capacity kg 12kg 12kg 12kg Energy consumption year kWh 259 259 259 Max storage time at breakdown Freezer Min 820 820 820 Defrosting M manual A automatic A A A Frost free system yes yes yes Defrost water outlet yes yes yes Air circulating v...

Page 7: ...eezer 3 3 3 Type gr grill g glass p plastic g g g Color w white b blue t transparent t t t Adjustable Y yes N not N N N Foldable Shelf yes yes yes Bottle Rack yes yes yes Drawers Plastic drawers fully freezing comp n 3 3 3 Muti use comp n 2 2 2 Colour of drawer w white t transp g green t t t Crisper Chiller Meat salad crisper transparent white Chiller t Chiller t Chiller t Vegetable crisper s tran...

Page 8: ...g 78 78 78 7 Packing dimensions load ability Packing dimensions H W D cm 185 5 74 7 71 4 185 5 74 7 71 4 185 5 74 7 71 4 Gross weight kg 92 92 92 40 Container load pcs 54 54 54 40 HC Container load pcs 72 72 72 8 Recycling symbols Packing materials Recycling symbols RS RS RS RS RS Carton weight in gr 6270 6270 6270 Polystyrene weight in gr 06 2570 2570 2570 Polyethylene foil weight in gr 04 210 21...

Page 9: ... Refrigerator structure Fridge storage compartment LED light Shelf Rolling Shelf Shelf Fruit and vegetable drawer Drawer in variable temperature compartment Freezing drawer Power plug Cover for medium bottle rac Rack for medium bottles Sealing box Rack for small bottles Rack for big bottles ...

Page 10: ...TGW R B 10 Issue 2010 10 25 Rev Ref1010S025V0 2 4 Product dimensions Refrigerator Dimensions Refrigerator height H 1805mm Refrigerator width W 630mm Refrigerator depth D 640mm Cabinet depth D1 560mm Door depth D2 70mm D W H D1 D2 ...

Page 11: ... the drawer fig 3 Pull out 2 drawers from the cabinet fig 3 2 Remove the display panel 1 Detach 2 screws fixing on the top cover of the fridge door fig 2 Remove the top cover of the fridge door fig 3 Detach 2 screws fixing on the display panel box fig 4 Pull out the shelf of display panel and disconnect the connector of the display panel fig 5 Detach 2 screws fixing on the display panel shelf fig ...

Page 12: ...g shelves Fruit and vegetable drawer Tilt 2 lamp covers in the lower of the air duct fig 2 Detach the duct cover in the upper part of the air duct and detach 4 screws in the upper and lower part of the air duct fig 3 Tilt the refrigeration air duct forward entirely around its upper side until you can see the connector on its upper side Pull out the connector and you can remove the refrigeration ai...

Page 13: ...w of the duct cover and remove it fig 6 Pull out the connectors and disconnect them fig 7 Remove 4 small duct cover and detach 4 screws in the freezing air duct onto the freezer chamber fig 8 Tilt the freezing air duct forward from top to bottom and disconnect the connectors of the freezing air duct then you can remove the air duct fig 9 Take out the freezing air duct and the fin evaporator is jus...

Page 14: ...SERVICE MANUAL Model AFD626TGW R B 14 Issue 2010 10 25 Rev Ref1010S025V0 Chapter 4 Control and display system 4 1 Control and display panel ...

Page 15: ...icial intelligence mode press button E Setting and the symbol I will disappear indicating that the artificial intelligence mode has now stopped Lock Unlock If symbol N is displayed the panel is locked Press and hold button E Setting for 3 seconds symbol N shall disappear and the panel is unlocked Hold button E Setting again for 3 seconds symbol N is displayed and the panel is locked again Holiday ...

Page 16: ... temperature is 1 to 4 Regulation of variable temperature compartment between 5 and 18 and ON OFF control when in unlocked mode Pressing button B to adjust the temperature and symbol G will start flashing Each press of button B the temperature selection will increase by 1 between OFF and 5 to 18 At the OFF selection the variable temperature compartment will be at ambient temperature After the temp...

Page 17: ...ing can be selected and symbol K begins flashing press button E Setting symbol K shall be displayed and stop flashing indicating the rapid freezing function of the freezing chamber is started After 56 hours it shall stop the rapid freezing state Under rapid freezing press button D select symbol K and press button E and symbol K will disappear indicating that the rapid freezing function has stopped...

Page 18: ...is more than 3 the temperature of the freezer storage compartment that displayed on the display panel will flashing 4 2 Error code display and sensor positions 4 2 1 Error code display Malfunction description Sign Display Display position Malfunction of the fridge evaporator sensor RE SNR F1 Display panel Malfunction of the ambient temperature sensor AT SNR F2 Display panel Malfunction of the frid...

Page 19: ...SERVICE MANUAL Model AFD626TGW R B 19 Issue 2010 10 25 Rev Ref1010S025V0 4 2 2 Graphic display of the sensor location Freezer Compartment ...

Page 20: ...he same time for 3 seconds to enter the T2 MODE the door display panel displays T2 T2 T2 and the refrigerator enters Forced Defrosting Mode 1 The compressor and the fans and the damper are closed 2 The defrosting heater is forced operated This can be used to test the defrosting system TEST3 In the T2 MODE press and hold the button A B C on the door display panel at the same time for 3 seconds to e...

Page 21: ...l displays T4 T4 T4 and the refrigerator enters a Special Mode freezer fan motor shall be forced operated 2 The damper is open 3 The defrosting heater wire is disconnected 4 The fridge compartment operates normally EXIT In the T4 MODE press and hold the button A B C on the door display panel at the same time for 3 seconds to Exit TEST MODE The door display panel will resume normal display ...

Page 22: ...FF condition of the freezer fan motor is controlled with the Freezer storage temperature sensor F SNR 2 ON OFF condition of the freezer fan motor is same with the Compressor 5 3 Control principle of the fridge fan motor The fridge fan motor is controlled by the control panel according to the following conditions The DC fan s rotation speed is regulated with the input Voltage and the AC fan operate...

Page 23: ...igeration cycle The refrigerant is compressed in the compressor from there it enters the condenser the de dewing tube and the dry filter and goes into the valve from there it enters fridge and freeze evaporator after being throttled and decompressed in the capillary tube Finally it returns to the compressor through the air return tube Principle diagram of the refrigeration cycle ...

Page 24: ...0S025V0 6 2 Perspective of the refrigeration system 1 compressor 2 evaporator tube 3 condenser4 de dewing tube 5 dry filter 6 valve 7 fridge capillary tube 8 fridge evaporator 9 freeze capillary tube 10 freeze evaporator 11 air return tube 12 air return connect tube ...

Page 25: ... AFD626TGW R B 25 Issue 2010 10 25 Rev Ref1010S025V0 6 3 Air Flow Chart Schematic drawing and description of air circulation in the refrigerator air duct Fridge compartment air flow chart Freezer compartment air flow chart ...

Page 26: ...SERVICE MANUAL Model AFD626TGW R B 26 Issue 2010 10 25 Rev Ref1010S025V0 Chapter 7 Circuit diagram 7 1 Main control PCB diagram ...

Page 27: ... GND 8 Pin8 and pin7 connect to the fridge storage sensor Resistance test is the same as the fridge evaporator sensor 9 Pin9 and pin7 connect to the defrosting sensor Resistance test is the same as the variable temperature compartment sensor 10 GND 11 Pin11 and pin10 connect to the freezer sensor Resistance test is the same as the variable temperature compartment sensor 12 PWM CN2 is the connector...

Page 28: ...ers and valve Its pins are 1 N 2 L 3 Null 4 Defrosting heater The resistance between it and the N is 345Ω 10 5 Valve 6 Clapboard heater and cover board heater The resistance between it and the N is 4033Ω 10 CN5 is the connector for the fridge fan motor Its pins are 1 2 Null 3 Fridge fan motor GND 4 Fridge fan motor 15V MAX ...

Page 29: ...ol panel resolder it with an electrical iron 2 If any connector is not connected properly replug it firmly 8 1 3 Symptom poor freezing effect accompanied by loud noise Check 1 Check if there is apparent abnormal sound in the freezer storage compartment Remove the fan cover plate please first eliminate the possibility of improper installation 2 If the freezer fan does not run remove it and check if...

Page 30: ...rk The fridge storage compartment is turned off Check if the air door cable is not connected properly and install it correctly if not so Verify that the air door acts normally with the Fridge ON OFF key on the display panel The fan does not work while the refrigeration air door is open Please check if the door on off behind the front decoration strip is installed properly Reinstall it correctly if...

Page 31: ...the temperature in the freezer storage compartment is OK The temperature is set too high Set the fridge temperature lower It takes 24 hours for the temperature of the refrigerator to become stable Bad odors in the refrigerator The inside of the refrigerator is dirty The inside of the refrigerator needs cleaning Food with strong odor is stored in the refrigerator Clean the internal of the refrigera...

Page 32: ...Sincere forever Haier Group Haier Industrial Park No 1 Haier Road 266101 Qingdao China http www haier com ...

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