SERVICE MANUAL
Contents
1. STEP 7 After examination first connect the fan connector then push the cover of air passage to fix it well SERVICE MANUAL Model HB21FSSAA HB21FG Chapter 4 Control and Display System 4 1 Control and display board A Function selection H Holiday icon B Function confirmation I Fuzzy icon C Freezer temperature control button J Super cooling icon D Fridge temperature control button K Super freezing icon E Freezer temperature display icon L Lock icon F Fridge temperature display icon 4 2 Holiday function In the unlocked status press Function Select Button A select the Holiday function at this time the Holiday Icon is blinking press down the Function Confirmation Button B the Holiday Icon displays and enter the Holiday function If you want to exit the Holiday function press the Function Confirmation Button B and select the Holiday function and the Holiday Icon is still in blinking press down the Function Confirmation Button B the Holiday Icon will be off and the Holiday function is exited Caution 1 Before activating the Holiday function should empty the refrigerating chamber to avoid food spoilage 2 In the Holiday status fuzzy and super cooling the refrigerating temperature control is not available 4 3 Fuzzy function In Fuzzy status refrigerator will adjust the temperature setting automatically according to the ambient temperatu2. 7 Hold the side of fridge door using one hand hold 8 Take off the anti friction ring the white ring in the bottom of fridge door using another hand then following picture keep the door and the cabinet in 90 degree angle that is in vertical direction must assure this point Then raise the fridge door off the middle hinge and put the door horizontally on the protective pad 9 Please note to put all parts in order and ensure not lost any part especially the white anti friction ring 3 3 2 Disassemble the automatic door closers of fridge door 1 Take off fridge door according to above operation 2 Reverse the fridge door to keep the bottom to steps take down bottle holders and upper hinge from upward then detach the three fixing screws as then fridge door then remove fridge door from the shown refrigerator Issue 2010 12 SERVICE MANUAL Rev Ref1012S008V0 Model HB21FSSAA HB21FG 3 Take down the door stopper 4 Draw out the automatic door closer from the fridge door Caution in operation 1 Must ensure the fridge door and cabinet in 90 degree when disassemble or install the door 2 When reinstall the automatic door closer operator must according to the following requirement Keep the flat surface of shaft green line in vertical direction with the red line shown in the following picture The fridge door will can t be reinstall in right position if not comply wi
3. Damp climate The refrigerator door is not closed tightly This causes mixing of the cold air in the refrigerator with the warm air outside it The refrigerator is in defrosting cycle The refrigerator is not plugged into a power outlet The refrigerator is in OFF state The air door cable is not connected properly The fan does not work The fridge storage compartment is turned off The indoor or outdoor temperature is high The refrigerator has been powered off for a period of time The automatic icemaker is operating The door is opened too frequently or for long periods The door of the fridge freezer storage compartment is not tightly closed The temperature setting for the freezer storage compartment is too low The door gasket of the It is normal in damp climate The moisture will decrease when the humidity drops Make sure the refrigerator is level and there is no food or container interfering with the door It is normal for an automatic defrosting refrigerator Verify the plug is plugged in the socket firmly Press the Power button for 3 second or more to restart the refrigerator or turn the knob from OFF to temperature selection position 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 c
4. Model HB21FSSAA HB21FG MODE OPERATION WORKING CONDITION REMARK TEST1 For testing the cooling capability TEST2 For testing the defrost system TEST3 For testing assistant heater BACK TO NORMAL Under LOCK status finish the following operation within 5 seconds press four keys one by one Function A REF TEMP D OK B FRZ TEMP C and then press key Function A to enter Test1 mode the products will enter forced starting mode Press key Function A under Test1 mode for 3 seconds to enter Test2 mode then the product will enter forced defrosting mode Press key Function A under Test2 mode for 3 seconds to enter Test3 mode then the product will enter assistant heater inspection mode Press key Function A under Test3 mode for 3 seconds to enter Test4 mode Under TEST4 mode press key Function A for 3 seconds the refrigerator will quit Test mode and back to normal 2010 12 Ref1012S008V0 1 compressor start working 2 freezer fan motor start working 4 defrost heater closed 3 cooling fan motor start working 5 air damper open 90 6 show T1 T1 at refrigerator freezer setting of display board 1 compressor shutdown 2 freezer cooling fan motor shutdown 3 defrost heater start working 4 vertical girder heater shutdown 5 air damper and it s heater shutdown 6 freezer refrigerator setting display T2 T2 at display board 1 compres
5. 17 3 6 Assemble the handle 18 3 7 Defrosting system disassembly and inspection 18 4 Control and Display System 22 4 1 Control and display board 22 4 2 Holiday function 22 4 3 Fuzzy function 22 4 4 Super cooling function 23 4 5 Super freezing function 23 4 6 Lock Unlock 23 4 7 Freezing temperature setting 24 SERVICE MANUAL 4 8 Fridge temperature setting 24 4 9 Open door alarm function 24 4 10 Energy saving display control function 24 4 11 Power outage memory function 25 4 12 Power outage memory function 25 5 Electrical Control Principles 26 5 1 Overview 26 5 2 Fridge electric air damper control 26 5 3 Fan control 26 5 4 Vertical girder hater control 27 5 5 Defrost control 27 6 Cooling System Principles nier 28 6 1 Cooling system flow scenograph 28 6 2 Cooling system flow chart 28 T Cireuit D Ada E oe ee ee eee ee 29 7 1 Main control PCB diagram diagram 29 7 2 Brief principle diagram 30 8 Sensor Error Code and Self test Function 31 8 1 Sensor position 31 8 2 Error codes list 31 8 3 How to display error code 32 8 4 Self test function 32 9 Trouble 43 SERVICE MANUAL IX Model HB21FSSAA HB21FG Rev Ref1012S008V0 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 sho
6. 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 UG A reference guides to find additional information on a specific topic SERVICE MANUAL Model HB21FSSAA HB21FG Rev Ref1012S008VO Chapter 2 Product Feature 2 1 Specifications Sketch Z lt Z Product description Refrigerator Freezer Refrigerator Refrigerator Refrigerator Refrigerator TI Type of appliance FS freestanding Bl built in 2 Type of cooling system NF no frost S static Climate class SN N ST T SN N ST T SN N ST T SN N ST T Freezer compartment Star rating Refrigerator _ of appliance FS freestanding Bl builtin Type of cooling system NF no frost S static ON Climate elass __ SNNSTT SNNSIT Freezer compartment Star rating Kind of coolant R134a R600a R600a 75g R600a 75g R600a 75g R600a 75g 220 240 V 50Hz 220 240 V 50Hz 220 240 V 50Hz 220 240 V Voltage frequenc 9 1 y 50Hz Protection calss 150 W 1 5A 180 W 150 W 1 5A 180 W 8 W Refrigerator 2 10 C 2 10 C 2 10 C 2 10 C Refrigerating capacity 10kg 24h 10kg 24h 10kg 24h 10kg 24h Features 150 W 1 5A 180 W 8 W 150 W 1 5A 180 W Input power Rated current Defrost watt Max power of lamp Temperature r
7. the locked status is exited Caution In locked status the functional controls of refrigerating temperature freezing temperature Holiday Fuzzy Super Cooling and Super Freezing are not available 4 7 Freezing temperature setting In the unlocked status press Freezing Temperature Control Button C the original freezing chamber setting temperature start to blink Enter freezing chamber temperature setting status since then for each single press of this button the freezing chamber setting temperature is displayed in cyclic form by 14 C 15 C 16 C 17 18 C 19 C 20 C 21 C 22 C if no button pressing operation is initialed over 5 seconds the blinking will stop and confirm the current temperature setting value 4 8 Fridge temperature setting In the unlocked status press Fridge Temperature Control Button D the original freezing chamber setting temperature start to blink Enter fridge chamber temperature setting status since then for each single press of this button the fridge chamber setting temperature is displayed in cyclic form by 09 C 08C 07 C 06 C 05 C 04 C 03 C 02 C 01 C if no button pressing operation is initialed over 5 seconds the blinking will stop and confirm the current temperature setting value 4 9 Open door alarm function When any door is left open for more than 60 seconds or not closed tightly the refrigerator will sound alarm buzzer at an interval 30 seconds to remind user to clo
8. 2 A Power Plug B Freezer fan Cooling fan Damper Display board SW1 Fridge lamp switch 1 SW2 Fridge lamp switch 2 SWS Freezer lamp switch 1 SW4 Freezer lamp switch 2 SNR1 Fridge sensor SNR2 Freezer sensor SNR3 Defrost sensor SNR4 Ambient sensor SNR5 Humidity sensor L1 Fridge lamp 1 L2 Fridge lamp 2 L3 Fridge lamp 3 L4 Freezer lamp 1 L5 Freezer lamp 2 F Inverter board G Compressor Fuse 1 J Control board K Fuse 2 H1 Vertical girder heater H2 Defrost heater SERVICE MANUAL Model HB21FSSAA HB21FG Chapter 8 Sensor Error Code and Self test Function 8 1 Sensor position Iz R SNR 8 2 Error codes list Error code and Error description display area Code meaning RT SNR Ambient temperature sensor R SNR Fridge sensor failure F SNR Freezer sensor failure RT SNR short circuit or open circuit R SNR short circuit or open circuit 4 F SNR short circuit or open circuit D SNR short circuit or open circuit MEE H SNR short circuit or open circuit D SNR Defrost sensor failure 5 H SNR Humidity sensor failure LS Poor communication h 7 E1 Cooling fan E2 Defrost system failure Ed 2 minute communication disconnection Freezing fan is unavailable Cooling fan is unavailable The temperature feeling by defrost sensor cannot reach 7 Cwithin two hours SERVICE MANUAL Issue Model HB21FSSAA HB21FG Rey 8 3 How to display error code W
9. Halef SERVICE MANUAL Order No Ref1012S008VO Refrigerator MODEL HB21FSSAA HB21FGRAA HB21FGBAA HB21FGWAA N WARNING This service information is designed for experienced repair tecnnicians is not designed for use by the general public It does 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 2010 HAIER ELECTRICAL APPLIANCES COR LTD All rights reserved Unauthorized copying and distribution is a violation of law Haier Group SERVICE MANUAL Contents ot CONS a ee nn 2 1 General Information eee 4 1 1 General guideline 4 1 2 important notice 4 1 3 How to read this service manual 5 5 Product Feature OOo TOT OTT 6 2 1 Specifications 6 2 2 Main features 8 2 3 External views 9 3 Disassembly and Installation 10 3 1 Disassemble the lamp of fridge chamber 10 3 2 Disassemble the air duct of fridge chamber 11 3 3 Disassemble the fridge door 12 3 3 1 Disassemble the fridge door 12 3 3 2 Disassemble the automatic door closers of fridge door 13 3 4 Disassemble the freezing door 13 3 5 Disassemble the display panel of left fridge door
10. and there is no food or container tightly interfering with the door The condenser is dirty Clean the condenser The temperature in the The temperature is set Set the freezer temperature lower It freezer storage too high takes 24 hours for the temperature of the compartment is too high refrigerator to become stable while the temperature in the fridge storage compartment is OK The temperature in the The temperature is set Set the fridge temperature lower It takes fridge storage too high 24 hours for the temperature of the compartment 15 too high refrigerator to become stable while the temperature in the freezer storage compartment is OK Bad odors in the refrigerator The inside of the The inside of the Clean the internal of the refrigerator refrigerator is dirty refrigerator needs cleaning Wrap the food tightly Food with strong odor is stored in the refrigerator If you hear Beeps The fridge storage Close the door or silence the alarm compartment door is manually open The temperature in the The alarm is normal when it ts first started freezer storage due to relatively higher temperature compartment is too high Abnormal sound The refrigerator is not Adjust the feet to level the refrigerator located on a level surface Remove objects around it The refrigerator touches some object around it that of flowing water refrigerating system de dewing normal phenomenon Sincere forever Haier Group Hai
11. ange from to Issue 2010 12 Rev Ref1012S008VO SERVICE MANUAL Model HB21FSSAA HB21FG Stainless Steel G G G G G G G G Colors Wzwhite Gzsilver gray B Obsidian SS stainless steel Fascia panel Handle w c w Hinged r right left reversible Shelves o RED BLACK WHITE NO 2 lt CO T NO gt lt I gt lt I gt lt I gt lt L lt D o D o Foldable Shelf Bottle Rack Plastic drawers fully freezing comp 3 Colour of drawer w white t transp g green t Chiller Meat salad crisper transparent white Chiller t Chiller t Chiller t Chiller t Vegetable crisper s transparent white Control panel Interior exterior Exterior Exterior Thermometer interior exterior Interior Interior Display type LCD w Control lamps green yellow white Over temperature alarm LED acoustic acoustic acoustic Adjustable thermostat Fast freeze switch function yes yes s CD 2 lt CD 2 3 t yes n 5 o 2 o 2 o Exterior Exterior Interior LCD Interior LCD acoustic acoustic yes yes yes yes Deodorizing yes yes yes yes yes Interior light yes LED light Full Freeze pack s yes yes Full Full 5 ice maker Manual Automatic M M Ice cube tray s 1n Butter holder yes ye
12. dge door open the damper will close but the freezer fan motor will operate according to the compressor function 2 he freezer fan motor will not operate if the freezer door is open 3 The freezer fan will not stop running if any one of the fridge chamber and freezer chamber can not reach the setting temperatuer 4 When the freezer sensor failure freezer fan will work according to fixed cycle ON 15 minutes then OFF 15 minutes Condenser cooling fan motor s controlling The cooling fan works with the compressor synchronously If the running speed of evaporator Condenser fan motor is lower than 300RPM or stop running and or longer than 30 seconds during the run cycle the appliance will display error code E1 E2 It will come back to normal display if fan motor resume normal condition or else it keep display error code SERVICE MANUAL m pU Model HB21FSSAA HB21FG Rev Ret10125008V0 5 4 Vertical girder heater control According to different ambient temperature and different humidity the working time of vertical girder heater are also different For example If the ambient temperature is between 30 C to 35 humidity is between 60 to 709 the vertical vertical girder heater work 25 seconds per minute 5 5 Defrost control The refrigerator control the defrost start based on different compressor accumulated working time and door open times When the defrost sensor reaches 7 C refrigerator stop defrost If
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14. everse order SERVICE MANUAL m poem Model HB21FSSAA HB21FG Rev Ref1012S008VO 3 2 Disassemble the air duct of fridge chamber 1 Remove the top lamp cover and top lamp panel firstly according to above steps 2 Remove the four fixing screws of lamp panel 3 After the top lamp panel support is removed support then remove the lamp panel support Detach two screws fixing back air duct of fridge chamber nr iri Mi wil 4 Pull out the air duct assembly of fridge 5 Disconnect the lower wire terminals of the chamber air duct then detach the fridge air duct 6 During installation carry out the operation in the reverse order SERVICE MANUAL ud 7 Model HB21FSSAA HB21FG 3 3 Disassemble the fridge door 3 3 1 Disassemble the fridge door Take the left fridge door for example in the following steps introduction Disassemble the right fridge door can refer to the following similar operation Fridge door installation can be operated in the reverse order 1 Remove the fixing screws of upper hinge cover 2 Disconnect cable connectors a b and then remove the upper hinge cover humidity sensor terminal c 5 Open the fridge door to 90 angle now the 6 When the locating block off the upper hinge door is vertical to the cabinet then pull the door stop pulling the door outward then lift the door out in the arrow direction upward to remove it from refrigerator SERVICE MANUAL
15. heck if the door on off behind the front decoration strip is installed properly Reinstall it correctly if not so Turn on the fridge storage compartment manually In this case it is normal for the refrigerator to run longer Normally it takes 8 to 12 hours for the refrigerator to totally cool down Icemaking process makes the refrigerator to run longer Warm air enters the refrigerator and causes it to start frequently Please do not open the door so frequently Make sure the refrigerator is level place and there is no food or container interfering with the door Set the temperature higher until satisfactory refrigerator temperature is obtained It takes 24 hours for the refrigerator temperature to become stable Clean replace the door gasket SERVICE MANUAL L Rev Reftor2so0svo fridge freezer storage Leakage gap of door gasket can cause compartment is dirty longer running time of the refrigerator in worn cracked or order to maintain desired temperature mismatched The condenser is dirty Clean the condenser Too high temperature Too high temperature in The door is opened too Warm air will enter the refrigerator the fridge freezer frequently or for too whenever the door is opened Try to open storage compartment long periods of time the door as infrequently as possible Temperature is set too Reset the temperature high Make sure the refrigerator is on a level The door is not closed surface
16. hen this refrigerator is in malfunction the appliance can not display error code automatically Under Lock status press Function button A and REF TEMP button D at the same time for 3 seconds after the buzzer sounds the error code is displayed If there are several error codes displayed at a time the error code of high priority will be displayed priority Press the key Function A to display next error code and repeat the operation for circulating display Press Function button A and REF TEMP button D at the same time for 3 seconds again to exit the error code display 8 4 Self test function 1 Under LOCK status finish the following operation within 5 seconds press four keys one by one Function A REF TEMP D OK B FRZ TEMP and then press key Function A to enter Test mode the products will enter compulsive starting mode 2 Press key Function A under Testi mode for 3 seconds to enter Test2 mode then the product will enter forced defrosting mode 3 Press key Function A under Test2 mode for 3 seconds to enter Test3 mode then the product will enter assistant heater inspection mode 4 Press key Function A under Test3 mode for 3 seconds to enter Test4 mode For future use no function define 5 Under TEST4 mode press key Function A for 3 seconds the refrigerator will quit Test mode and back to normal The following table is the detail about refrigerator self test function SERVICE MANUAL
17. ir cooling design The fridge chamber temperature is controlled by the fridge sensor controlling the switch of the air damper The freezer chamber temperature is controlled by the freezer sensor controlling the operating of the compressor 5 2 Fridge electric air damper control 1 The air damper is controlled with the fridge temperature sensor R SNR 2 The air damper is closed from the beginning of defrosting until 15 minutes after the defrosting is finished 3 Upon initial powering on or resetting of the control panel the air damper conducts a close and open cycle before acting according to the control conditions in item 1 4 The air damper will be forced to conduct an open and close cycle if it has been closed for 1 hour After that its closing opening will be controlled by R SNR The air damper will automaticlly close when REF door has been opend over 2 minutes 9 6 When the fridge sensor failure air damper will work according to fixed cycle ON 10 minutes then OFF 15 minutes Operation can be used in check air damper Press refrigerator temperature setting button for 3 seconds under lock status then the fridge room is closed and temperature and setting display board go out fridge air damper is closed 5 3 Fan control Control principal of the freezer fan motor 1 When a fridge food door is opened the freezer fan motor will operate at high speed and the damper will be full open After 2 minutes with the fri
18. left fridge door and the right fridge door are not level If exist the phenomenon that the left fridge door and the right fridge door are not level first check the install status between the door and middle hinge according to above instruction 4 C If the installation operation is OK the door the anti friction ring and middle hinge are not fitted rightly but the two fridge door are still not level can level the doors by adding adjusting pad there are three 1mm adjusting pad with the refrigerator Operation method SERVICE MANUAL Rev Reft0128008V0 Part used for adjustment use Operation adjusting pad for middle hinge 1 Open and lift the fridge door can be used to adjust the fridge 2 Clip the adjusting pad using a pincers to insert it into the shaft of door level middle hinge The pad should between the white anti friction ring and the middle hinge In the following demo picture the pad are not insert into middle hinge wholly After above adjustment check again to ensure door can be opened and closed normally 3 4 Disassemble the freezing door Take the operation of big freezing drawer door for example Disassemble the small freezing door can refer to the following similar operation 1 Pull out the big freezing drawer door lift the 2 Detach two screws fixing slideway support plastic drawer front part gently a meanwhile bracket passes forward the plastic drawer b makes an effort upwardly behi
19. n is exited 4 5 Super freezing function Super Freezing function is designed to maintain the nutritional value of food inside the freezing chamber it will completely freeze the food in a short time In the unlocked status press Function Select Button A select the Super Freezing function at this time the Super Freezing Icon is blinking press down the Function Confirmation Button the Super Freezing icon K displays and enter the Super Freezing function lf you want to exit the Super Freezing function press the Function Confirmation Button B and select the Super Freezing function and the Super Freezing Icon is still in blinking press down the Function Confirmation Button B the Super Freezing Icon K will off and the Super Freezing function is exited Caution Select Super Cooling or Super Freezing functions in Fuzzy status the Fuzzy status will exit automatically Additionally if select Fuzzy function in Super Cooling or Super Freezing status the Super Cooling or Super Freezing status will exit automatically 4 6 Lock Unlock In unlocked status press Function Select Button A select the Lock function the Lock Icon L blinks press down the Function Confirmation Button B the Lock Icon displays and enter the locked status In the locked status press down the Function Confirmation Button B for 3 seconds the Lock Icon SERVICE MANUAL Model HB21FSSAA HB21FG Function L will be off and
20. nd the plastic drawer c take down the plastic drawer 3 Hold the drawer door and lift it upward take down 4 After removing drawer door push slideways the door from the slideway into the cabinet SERVICE MANUAL Operation for HB21FSAA Use sucker to suck the display board at location 1 and 2 to remove it from fridge door Operation for HB21FGRAA HB21FGBAA HB21FGWAA 1 Use screwdriver to detach the screws at 2 Use screwdriver to detach the screws at location 1 and 2 Then remove the cover 3 location 4 and 5 3 Pull out the panel bracket 6 upward then 4 During installation carry out operation in the can take down the display panel reverse order Note connector when operation SERVICE MANUAL a Emm Model HB21FSSAA HB21FG Rev Ref1012S008V0 3 6 Assemble the handle 1 Assemble the fridge door handle Firstly insert the handle connectors into the hole of fridge door Fig 1 Then take out the fridge handle align the hole of handle head to the connector install the handle to the connector Use inner hexagon to fix the side fixing screws on the handle head tightly Fig 2 The handle can be dismantled by reverse steps Fig 1 2 Assemble the freezing door handle Firstly insert the handle connectors into the hole of freezing door Fig 3 Then take out the freezing handle align the hole of handle head to the connector install the handle to the connector Use i
21. nner hexagon to fix the side fixing screws on the handle head tightly Fig 4 The handle can be dismantled by reverse steps Fig 3 Fig 4 3 7 Defrosting system disassembly and inspection STEP 1 After take out all drawers lift the air passage of freezer take down the cover of freezer air passage Please pay attention to not break the wire of fan motor and then disconnect the fan connector SERVICE MANUAL ZING _ Rev Reftor2so0svo OEEO disconnect the fanconnector ae Connector A A ConnectorB ka CE LEE HL Nager en Pre PETER E HEAD o LJ ign Ss LL adem d mad jitter Aa E LL aa ium ps p PENA RA P RAREMENT nnn a eu STEP 3 Test the resistance of connector A and B the normal value is 1940 if the heater if failed please change a new one STEP 4 Lift up the evaporator to take the fixing clips out Attention Don t break the pipes of evaporator and avoid being hurt by evaporator STEP 5 After changing new heater fix the heater onto evaporator by clips then fix evaporator onto cabinet Es 66 STEP 6 Disassembly the fixing clip of defrost sensor then push the sensor according to the marked direction to take down the sensor Cut the fixing clip of fuse and check whether the fuse is well if it is failed please change a new one
22. oor alarm touch sensitive button large screen LCD display 9 Drawers have track way It can be pushed and pulled smoothly SERVICE MANUAL Model HB21FSSAA HB21FG 2 3 External views Refrigerating Chamber Refr Light Gallon Bottle Diary Box Seat Refr Shelf LJ Wine Rack Gallon Bottle Seat Crisper Full Wid Drawer Cover Full Wid Drawer Manual Ice Maker Freezer Small Drawer Drawer Shelf Board Handle Freezer Large Drawer Decoration Strip SERVICE MANUAL Model HB21FSSAA HB21FG Rev Ref1012S008VO Chapter 3 Disassembly and Installation 3 1 Disassemble the lamp of fridge chamber The fridge lamp is LED type with low energy consumption and long operation life The replacement steps are as follows A Replace the top lamp panel of fridge chamber 1 Remove two fixing screws of top lamp cover 2 Remove the top lamp cover 3 Disconnect the connecting terminal then 4 During installation carry out the operation in remove the four fixing crews of lamp panel the reverse order B Replace the back lamp of fridge chamber 1 Remove the top lamp cover firstly then remove 2 Remove the lamp panels There are two back the back lamp cover back light cover is mounted lamp panel Each lamp panel is fixed by fixing on the back by clip hook structure screw and clip hook structure 3 During installation carry out the operation in the r
23. pressor or an abnormal sound from the compressor in operation In this condition an automatic voltage regulator over 750W should be added lake 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 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 Don t touch the refrigeration surface of the freezing compartment when the refrigerator is in operation especially when your hand is wet else you may be glued to the surface Pull out the plug of power supply during clearance 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 SERVICE MANUAL a Emm Model HB21FSSAA HB21FG Rev Ret10125008V0 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 your products in some way 1 3 How to read this Service Manual 1 3 1 Using Icons The meaning of each icon is described in the table below we M A note provides information that is not indispensable Caution N A caution is used when there is danger through incorrect manipulation may
24. re and the temperature within the refrigerator No manual control is required In the unlocked status press Function Select Button A select the Fuzzy function then Fuzzy Icon I will blink press down the Function Confirmation Button B the Fuzzy Icon will display and enter the Fuzzy function If you want to exit the Fuzzy function press the Function Select Button A select the Fuzzy function the Fuzzy Icon 1 is still blinking press down the Function Confirmation Button B the Fuzzy Icon I will off and the Fuzzy function is exited SERVICE MANUAL Model HB21FSSAA HB21FG Function 4 4 Super cooling function Super cooling function is to meet the setting temperature rapidly for refrigerating chamber food storage it can contribute to a long term preservation for food If user put too much food in the refrigerating chamber at a time user can select to use it In the unlocked status press Function Select Button A select the Super Cooling function at this time the Super Cooling Icon J is blinking press down the Function Confirmation Button B the Super Cooling Icon J displays and enter the Super Cooling function lf you want to exit the Super Cooling function press the Function Confirmation Button B and select the Super Cooling function and the Super Cooling Icon J is still in blinking press down the Function Confirmation Button B the Super Cooling Icon will be off and the Super Cooling functio
25. rt 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 N gt Ur p c e Check if there is any leak of current Cut out the power supply before the repair to avoid an electrical shock hazard In the case of a live line test insulating gloves should be worn to avoid potential electrical shock Confirm the rated current voltage and capacity before testing with any kinds of instruments Watch if the upper door is open when you check something at a lower position Take out every part in the cabinet before moving the machine especially things like panels e g glass shelf Please wear intact cotton gloves when repair any parts of the evaporator so that scratches by the sharp fins can be avoided 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 The refrigerator use AC of 220V with a frequency of 50 60Hz A big fluctuation of voltage exceed the range 187 242V may cause a start failure of the refrigerator a burn out of the control panel and com
26. s yes Egg trays 2 Adjustable feet front rear Length of cable incl plug 200cm Condenser Back wall Integrated EE 200cm 200cm EN 2 2 Issue 2010 12 SERVICE MANUAL Rev Ref1012S008V0 Model HB21FSSAA HB21FG Unit dimensions H W Dmm 1780 910 770 1780 910 770 1780 910 770 1780 910 770 Packing dimensions H W Dmm 1860 980 760 1860 980 760 1860 980 760 1860 980 760 2 2 Main features 1 Ice making function Manual ice maker can satisfy user s different need for ice 2 Full width shelf design more convenience for storing and taking food 3 Fuzzy Function The refrigerator can be automatically adjusted to the best refrigerating condition according to the chamber temperature and ambient temperature without human intervention 4 Super large and super luxurious design The refrigerator has super large capacity super large refrigerating and freezing chamber as well as super luxurious inter design 5 Fluoride free frostless complete air cooling refrigeration deep cooling and rapid freezing 6 Defrost and pre refrigeration The refrigerator will make judgment on the temperature in the refrigerator before defrosting and the compressor will automatically and rapidly refrigerate after defrosting 7 Equipped with condensing unit heat dissipation by blower better refrigeration effect and long service life of compressor 8 Open d
27. se the door 4 10 Energy saving display control function 30 seconds after button pressing operation display screen backlight and button light will be off automatically this is in order to save power consumption When pressing any key or opening any door it will resume display screen backlight The corresponding press button light will activate from button pressing operation SERVICE MANUAL Model HB21FSSAA HB21FG HOWIDAY FRZ i FRZ E C FRZ TEMP 4 11 Power outage memory function When refrigerator has a power outage the instantaneous working status during the outage is memorized After the power is on the refrigerator will still run according to the setting tags and function states before the power outage Caution The Lock function is not memorable The refrigerator is at unlocked status after power recovery 4 12 Demo mode Under locked status press the function confirmation button OK B and freezer temperature control button FRZ TEMP C at the same time for 3 seconds to active demo mode Demo mode can be used for demonstrating refrigerator in market or showroom Under demo mode compressor fan and heater are all not work the lamp can work normally Same above operation under locked status can exit the demo mode SERVICE MANUAL aper Model HB21FSSAA HB21FG Rev Ret10125008V0 Chapter 5 Electrical Control Principle 5 1 Overview The refrigerator belongs to whole no frost a
28. sor shutdown 2 freezer cooling fan motor shutdown 3 defrost heater shutdown 4 vertical girder heater start working 5 air damper heater start working 6 freezer refrigerator setting display T3 T3 at display board Mode TEST1 continues until exit manual When temperature around defrost sensor above 7 degree appliance will exit Forced defrosting model exit the inspection program after 30 minutes and back to normal No define function in Test4 it is for considering future use Function back to normal compressor start to work 7 minutes later EZ Issue 2010 12 Model HB21FSSAA HB21FG Rev Ref1012S008V0 Chapter 9 Trouble shooting Problem Cause U UUUUUUOUOS Water moisture frost in the refrigerator Moisture accumulates e Hot and moist climate on the refrigerators The door is not closed inner walls tightly The door is opened too Accumulation of frost and moisture accelerate in such climate e Make sure the refrigerator is level and there is no food or container interfering frequently or for too long time with the door Do not open the door so frequentl Water moisture frost on outside surface of the refrigerator Moisture accumulates on the refrigerator s outside surface or between two doors The compressor does not work The fridge storage compartment does not work The refrigerator runs frequently or runs for too long period
29. th any one of above operation requirement 3 Put the fridge door horizontally slightly in order to prevent damaging the automatic door closer which under the bottom of door 4 When install the fridge door to middle hinge please ensure the following items a Firstly note that put the white anti friction ring into middle hinge shaft before putting the fridge door above the middle hinge SERVICE MANUAL Issue 2010 12 Model HB21FSSAA HB21FG Rev Ref1012S008VO b Secondly let the shaft of automatic door closer aim at the shaft of middle hinge when putting the fridge door above the middle hinge c Thirdly must keep the fridge door and cabinet in vertical 90 degree when putting the fridge door above the middle hinge in order to ensure the door be installed in right position with the middle hinge Check the installation after finished operation Right Operation Wrong Operation When install the fridge door keep the door in 90 When install the fridge door no keep the door in angle with the cabinet The door the anti friction 90 angle with the cabinet The door the anti frictio ring and middle hinge are fitted rightly ring and middle hinge are not fitted rightly there is gap between them that cause the door is not installed in position wholly 5 After finishing door installation check the following items a Power on the refrigerator it can be start b Can open and close fridge door smoothly c Check if the
30. the defrost heater working time has reach 120 minutes but defrost sensor failing to reach 7 refrigerator will stop defrost and error code ED will be displayed in display area When the defrost sensor failure defrost heater will work 60 minutes and then stop work in every defrost cycle SERVICE MANUAL Chapter 6 Cooling System Principle 6 1 Cooling system flow scenograph 1 Compressor 2 Connector pipe 3 Condenser 4 Anti dew tube Drier filter Capillary Evaporator ouction pipe Connector pipe Condenser cooling fan Freezing fan Defrost heater 1 2 3 4 S 6 7 8 9 10 11 12 8 9 1 1 1 1 Compressor 2 Condenser 3 Drier filter 4 Capillary 5 Evaporator 6 Freezing fan 2010 12 1 t 2 z lt TT S gt or TT Ref1012S008V0 X LL Len N co I lt t Oo o LL Len N aa I Chapter 7 Circuit Diagram 7 1 Main control PCB diagram oun Un BNU J ik 11 Bill 900 JEA m 1 3 hU 3 11 e UU Lu Buypoaesuepuo Burzaal J gt Ash due 5upea due E AGL renak ET piso ugsa Jom T T SERVICE MANUAL 7 2 Brief principle diagram go PES pub tW med Ein SNR il SNR ui Mr Nh 5
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