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SERVICE MANUAL

1. CONTROL AND DISPLAY SYSTEM The door body vision controlling screen Hour Button B ns Minute Button E Qiie Lock Button D EA Time Area Function adjustment and control principle E FG H l JK L M N still 08 F G H M N Bessie seins Quick refrigerant button F Gr ese Deepfreeze fridge temperature adjusting button Pisses deepfreeze fridge temperature indicating area 1 Chill cold storage temperature indicating area TK chill cold storage temperature adjusting button L M Chill cold storage quick deepfreeze fridge sedan enisedannobacen naan Water filter reset button N Water filter indicating lamp CONTROL AND DISPLAY SYSTEM 1 Lock and Unlock C Press Button C after the first sound of the buzzer fix the indicating lamp to be lighted and the clock setting of the door body vision cannot be operated and the function of taking out cold drinks is locked press Button C again after the first sound of the buzzer fix the indicating lamp to be out and the clock setting of the door body vision operation is recovered 2 Chill cold storage temperature adjustment PTIT PEER JK Only apply for the models with the function of taking out cold drinks TILL alate sett SO JK Only apply for the models without the function of taking out cold drinks Press Button J or Button K the chill cold stor
2. 45 46 SAFTY RECAUTIONS mmm a Power supply 220V 50HZ This refrigerator use Alternating Current of 220V 50Hz If the range of the voltage fluctuates too significantly it is possibly will make the refrigerator not start and will burn down the master board and the compressor or will make the sound of the compressor be out of the way When this does happen an automatic manostat must be installed b The appliance must be plugged into a dedicated outlet that is securely grounded An independent special electrical outlet must be used and reliable earthing must be done on the electrical outlet This refrigerator is equipped with three electrical source lines earthing lines and the connector plugs are in accordance with the normal three lined earthing electrical outlet WARNING The plug should be securely connected to the socket or otherwise fire hazard may arise c Be careful not to damage the power cord 1 Don t let the refrigerator body press the power line or let the man caused stamping of the power line happen 2 When moving the refrigerator from the wall please be careful not to press or roll or damage the power line 3 Don t pull out the connector plugs of the refrigerator in the way of pulling out the power line d When the power cord is damaged When the power line is damaged or frayed you must go to the servicing station specified by the manufacturer to ask for a new one e When there is a gas leakage 1 Shut off th
3. Analysis of trouble If the circuit voltage is obviously lower than its rated value it will be difficult to start the motor and a hum sound can be heard from it Remedy Measures the voltage with a voltmeter if it is really too low give directions to the user for buying a stabilizer so as to step up the voltage thus normal operation can be achieved 3 Check the thermal relay to see whether its contacts are closed Analysis of Trouble The contacts of thermal relay sometimes may be open due to the leakage of temperature sensing agent from the temperature sensor Remedy Remove the relay cover to check up its contacts if they are open this means that the original setting is not properly set or temperature sensing agent has leaked out of the temperature sensor Try to turn the adjusting stem of this value in the direction of the lower temperature graduation then check the contacts to see whether they are closed If they are still not closed dismantle the temperature sensing disc and then immerse it into warm water to see whether the contacts actuate if not it can be preliminarily determine that temperature sensing agent has leaked out and it must be replaced with a new thermostat 4 Motor troubles and other electric faults a Motor windings have been burned or short circuited between turns Analysis of Trouble When motor windings have been burned or short circuited between turns the fuse will be blown repeatedly and the blowout
4. C If the product is set to enter into fast freezer or fast fridge the icon of fast freezer or fast fridge will light but the defrosting process will go on fast freezer or fast fridge mode will not execute until finishing this defrosting cycle The surplus defrosting time is not reckoned in the time of fast freezer or fast fridge After one defrosting cycle and the compressor and fan motor have stopped running more than 7 minutes if the freezer sensor temperature is over the stopping point the compressor will start running immediately Then the cooling fan motor will start running after the compressor has worked 5 minutes the air escaper ON OFF will control according to the temperature If the freezer sensor temperature is lower than stopping point it will wait until the temperature come back to the top of stopping point Then the cooling fan motor will start running after the compressor has worked 5 minutes the air escaper ON OFF will control according to the temperature Advance Cooling before Defrosting In order to assure the lowest temperature rise of the freezer room and fridge room the compressor and cooling fan motor will start running until the freezer sensor temperature reach to the off point 3 C then start defrosting If the product can t reach off point 3 C more than 30 minutes the forced defrosting mode will start TROUBLESHOOTING Troubleshooting and Repair 1 Normal Phenomena Not Troubles for Refrigerators
5. In a domestic refrigerator there is not only a complicated electric control system but also a refrigerating system that is difficult to discern whether it is in a good working condition Both the systems are related and affect each other If a certain part of a refrigerator works abnormally Its refrigerating efficiency will decrease operation properties will become unstable or even it cannot be used normally for those serious cases Refrigerators are generally of larger volume once troubles appear to send them to a service department is really a tough thing if such is the case the user will always be in suspense sometimes normal phenomena will be erroneously regarded as troubles Therefore before we deal with the topics of frequently occurring troubles of refrigerators and their remedies we should firstly give a brief account of some normal phenomena which are not troubles In case any one of such phenomena occurs there is no need to worry about it and the user can use it at total ease 1 When the compressor of a refrigerator has just stopped running a rumbling sound can be heard from inside its evaporator This is a sound caused by the flowing of refrigerant in the evaporator tubing Because the pressure difference is still greater after the compressor has just stopped running the refrigerant will flow for a certain time therefore this sound is a normal phenomenon 2 A click sound can often be heard from the refrigerator This
6. bottled seat Cooked food box Ice making drawer Fe Deepfreeze refrigeration big drawer Ice maker Ice meeting drawer Deepfreeze fridge Ice spoon Drawer clapboard Deepfreeze fridge big drawer A For the application of this brochure to different models the characteristics of the refrigerator you are using may be different from the descriptions in this brochure 6 Note DISASSEMBLY 1 Removing and replacing the right door of refrigerator compartment Unscrew the upper right hinge cover by Unscrew the upper right hinge by means of means of screwdriver and then remove hexagonal screwdriver and then remove the hinge the hinge cover 7 Remove the door and place it in a proper Remove the middle hinge if necessary position x 2 Removing and replacing the left door of refrigerator compartment Unscrew the upper left hinge cover by Unscrew the upper left hinge by means of means of screwdriver and then remove the hexagonal screwdriver and then remove the hinge cover hinge DISASSEMBLY 3 Pipes connecting Install th
7. ice pushing 2 Main Control Board of HB21FW There are 13 socket connectors on the main control board of HB21FW First let s look at the socket connector CN is the socket connector for the fridge parts from left to right are 1 2 Connect to fridge sensor We can check the resistance of fridge sensor by tests these two wires The resistance range of fridge sensor should be 6 35 3 88KQ if it works right correspond to 0 C 10 C The resistance range should be 2 45 1 58 KQ at regular temperature correspond to 20 C 30 C 3 4 Connect to the fridge door switch They are connected when the door is open and disconnected when it is shut 5 6 Heater of fridge air escaper Measurement of the two wires gives the output voltage DC 12V and the resistance 1440 10 of the heater 7 10 Connect to air escaper motor CN2 CN3 are the socket connecting cabinet display panel CN4 Parts from left to right are 1 2 Connect to Freezer sensor We can check the resistance of freezer sensor by tests these two wires The resistance range of freezer sensor should be 10 9 25 19KQ if it works right correspond to 10 C 25C The resistance range should be 2 49 1 61 KQ at regular temperature correspond to 20 C 30 C 3 4 Connect to the defrost sensor Measurement is same as freezer sensor 5 6 Connect to the freezer door switch They are connected when the door is open and disconnected when it is shut 7 9 Connect to cooling fan motor Measurement o
8. To replace the shelf with shelf front raised slightly engage the lugs in tracks Then lower shelf front until it locks into position f Lift and remove f l a RSS up Engaged the lugs J ITN To replace To remove DISASSEMBLY 10 Removing Crisper Cover Take out the crisper and put it away Lift up the cover end 1 and remove it 2 11 Cleaning door bin Lift the bin up 1 and pull it towards you 2 Replace the bin in the reverse sequence of removal after cleaning O 12 The Installment of the Cover in Front of the Cooked food Box Take out the front cover of the cooked food box put the circling shaft on both sides of the front cover of the cooked food box into the supporting blocking tank of the cooked food box and circle down the front cover of the cooked food box Note the angle between the front cover of the cooked food box and the slide way support must be about 90 degrees 13 It is recommended that before being used the refrigerator should be cleaned first Before putting food into the refrigerator please clean the inside and outside of the refrigerator completely using the baking soda diluted by water by the ratio of 4L water to a spoon of baking soda DISASSEMBLY 14 Place the refrigerator without turning on the power After the refrigerator is placed at a flat position and cleaned donj t turn on the power immediately
9. alarm When any door body is opened for over 60 seconds the door opening alarming function of the refrigerator will be started and the refrigerator will produce buzzers at the intervals of 30 seconds which shows to the user that there is a door body is open 13 Over voltage protection Press Button F and Button G and Button J on the vision board at the same time for three seconds the Celsius will be used after the first sound of the buzzer Press Button F and Button G and Button J on the vision board at the same time for three seconds again the Fahrenheit will be used after the first sound of the buzzer 14 Power breaking memorizing function When the refrigerator is cut off the state of the refrigerator before the power breaking is memorized and then the refrigerator will be operating with the default values before power breaking REFRIGERATION PRINCIPLE SYSTEM FLOW CHART 1 Compressor 2 Dew proof Pipe 3 Condenser 4 Dry Filter 5 Capillary 6 Evaporator 7 Connector pipe SYSTEM FLOW SCENOGRAPH D LOL LA CIRCUIT DIAGRA SENSOR AND ERROR CODE 2 Brief principle diagram Haier REFRIGERATOR FREEZER HB21FWRSS A POWER PLUG B FREEZER FAN MOTOR C ICE MAKER D REFRIGERATOR DAMPER ETOP DISPLAY PANEL F DOOR DISPLAY PANEL G1 REFRIGERATOR DOOR SWITCH 1 G2 REFRIGERATOR DOOR SWITCH 2 G3 FREEZER DOOR SWITCH 1 G4 FREEZER DOOR SWITCH2 H CONTROLPANEL I COOLINGFAN MOTOR J1 DEFROST SENSOR J2 FREEZER S
10. changes to 7 0 seconds then increase from this point When the inlet time is set to 8 0 seconds press freezer temperature control button once again the inlet time changes to 4 0 seconds Please refer to the following table Water Inlet quantity Series Inlet Time Second 1 4 0 5 0 5 5 6 0 6 5 7 0 7 5 8 0 COIN DM oO AJOJN Inlet time is execute the time before adjustment If the inlet time is adjusted under the water inlet condition New inlet time will execute next time 5 Refrigerator Test Model TEST1 For testing the capability of cooling press and hold the freezer temperature control button lt and the freezer temperature control button gt on the cabinet display panel for 3 seconds simultaneously to enter into lt PULL DOWN MODEL gt T1T1 will show on the display screen and force appliance to cool down immediately during this time the compressor run normally fan motor run at a high speed and defrost heater is switched off TEST2 Under TEST1 MODE hold the freezer temperature control button lt gt and REST D button a new 3 seconds to enter into lt FORCE DEFROST MODEL gt T2T2 will show on the display screen and force appliance to defrost immediately during this time the compressor and fan motor are switching off defrost heater is switching on Power of the defrost heater should be 250 15W here When temperature around defrost sensor above 7
11. ice pushing when the temperature of ice maker sensor drop to 12 C and the time interval of two ice making cycle arrive at 60 minutes The ice maker will rotate every 100 minutes if the ice make sensor is error Under the condition that the freezer light switch is closed press and hold the freezer temperature control button lt and the fridge temperature control button gt simultaneously for 3 seconds then start icemaker self testing Press and hold the freezer temperature control button lt and the fridge temperature control button gt simultaneously for 3 seconds EXPRESS FRZ blinking on the cabinet display panel then the icemaker stops operating Press and hold the freezer temperature control button lt and the fridge temperature control button gt simultaneously for 3 seconds again then the icemaker restarts 4 2 Water Inlet Control Principle of Icemaker Water Inlet Control Water inlet quantity can be controlled through button on the display control panel Press and hold freezer temperature control button for 3 seconds under the locked condition the buzzer beeps once then enter into inlet quantity adjustment and inlet time is displayed on the display area of freezer temperature For an example It will display 6 0 on the display area of freezer temperature if the inlet time is 6 0 seconds Inlet time is set to 6 5 seconds initially press freezer temperature control button once the inlet time
12. is turned on all time trouble of water valve or display panel may be caused Sincere Forever Haier Group Tel 86 532 88938356 Web site http www haier com
13. it or replace it with a new one C Sudden stop of Compressor during Its Running The cause of sudden stop of a compressor during its running is mostly that the gas suction pressure and or discharge pressure exceed their respective prescribed ranges thus making a pressure operated protective relay shut off the power to the compressor and stop it In the following we discuss mainly the reasons for causing excessively high gas discharge pressure and low suction pressure 1 Stoppage due to excessively high gas discharge pressure D A Too much refrigerant charged into the system Analysis of Trouble The phenomenon such as loose frosting and poor refrigerating effect may occur if excessive refrigerant has been charged into the system Superfluous refrigerant will occupy a certain space of the evaporator thus reduce its heat dissipating area and the phenomenon of liquid striking may occur too Meanwhile dew or frost condensation may occur on the gas return tube and the gas discharge pressure will obviously rise when it reaches the threshold value the protective relay will actuate and shut off the power supply to the compressor Remedy Open the tubing re evacuate and then charge the system with a proper quantity of refrigerant b Air left in the system Analysis of Trouble The residual air in the system will circulate together with the refrigerant in the system The major symptoms caused by this residual air is higher gas dis
14. lower gas suction pressure and exhaust pressure as well as higher exhaust gas temperature The exhaust tube feels rather hot and a continuous gas flowing sound louder than usual can be heard at the outlet of the capillary and no frost or a smaller quantity of loose frost appears on the evaporator After shut down the balance pressure in the system is usually lower than the saturation pressure corresponding to the same ambient temperature Remedy In case there is leakage of refrigerant from the system do not hurry to recharge it with refrigerant manage to find out leak points immediately and make a note of from where it leaks welding points and parts After having them repaired recharge refrigerant There are so many joints and sealed surfaces in a refrigerator accordingly quite a lot potential leak points do exist in the system In troubleshooting pay attention to those parts that are liable to leak check main connection points for oil seepage and tubing for cracks If there is no severer leak point charge the system with nitrogen and detect leak points with the commonly adopted method repair them evacuate charge the system with refrigerant and then turn on the refrigerator to make a test run 2 Too much refrigerant charged into the system Analysis of Trouble a In case the amount of refrigerant charged into the system exceeds its nominal capacity the superfluous refrigerant will of course take some space of the evaporator t
15. of cable incl plug cm 350 Temperature range from gt to Fridge Freez C 21 7 Top cover Black Cabinet Black Door Black Door Frame Black Fascia panel Handle Black Inside door drawers w white t transpar Door F Flat R Rounded S Streamline S Hinged r right I left reversible both side Lock no Shelves Control Panel Number 4 Type gr grill g glass p plastic g Colour of shelves Adjustable YES Drawers Number n 2 Crisper 2 Salad crisper s transparent white transparent Control panel interior exterior Exterior Thermometer interior exterior Ex terior Control lamps green yellow red Over temperature ALARM LED acoustic acoustic Adjustable thermostat NO Fast freeze switch YES Interior light W 25 Adjustable feet front rear n front Castors front rear rear Packing dimensions H W D Unit dimensions H W D mm 1771 908 759 Depth with open door mm Net weight kg 145 1960 974 863 Gross weight Carton Users instruction weight in g languages kg kg 160 English 10 Others PARTS IDENTIFICATIONS Chill cold storage floodlight Freezer a Diary food box Diary foChill cold storage rackod box Ly Liquid rack T T Slide rack Fruits and Vegetables box ae Gallon
16. or in the course of its operation we have found that the refrigerator is gradually becoming not so cold and finally no refrigerating cab be achieved ii fast leakage in that case all the refrigerant will escape swiftly due to abrupt rupture of system tubing Symptoms of total leakage of refrigerant are mainly as follows the compressor can be started easily if there is no damage to the compressor parts and its operating current becomes low its gas suction pressure is high and discharge pressure is lower the gas discharge tube feels rather cold no sound of gas eruption from the liquid in the evaporator can be heard and no will gush out of the process tube if you cut it open after shutdown D Remedy Check the whole machine particularly those locations which are liable to leak After leak points have been found repair them or replace them with new parts according to specific circumstances then evacuate the system and finally charge refrigerant 2 Refrigerating system has been clogged a Clogged with Ice Analysis of Trouble The dryness treatment for the major parts in the refrigerating system has been performed improperly the effect of air purging for the whole system is not good or the water content in the refrigerant is out of standard all these will cause the expansion valve to be clogged with ice The symptom for this trouble are as follows the refrigerator sometimes can refrigerate and sometimes cannot the refrigerator com
17. press Button B one minute will be increased till 23 minutes is reached then press Button B again 00 will be shown CONTROL AND DISPLAY SYSTEM 5 Refrigerant quick deepfreeze refrigeration setting The function of quick deepfreeze refrigeration is to refrigerate the food completely in the shortest time Press Button E the refrigerant quick deepfreeze refrigeration button indicating lamp will be lighted and the refrigerator will be in the refrigerant quick deepfreeze refrigeration state and the refrigerator will be out of the refrigerant quick deepfreeze refrigeration state after it enters the refrigerant quick deepfreeze refrigeration state for 4 hours if you want the refrigerator to be out of the refrigerant quick deepfreeze refrigeration state forcefully after it enters the refrigerant quick deepfreeze refrigeration state for three hours you can press Button E again and the refrigerant quick deepfreeze refrigeration button indicating lamp will be out and the refrigerator will be out of the refrigerant quick deepfreeze refrigeration state 6 Chill cold storage quick deepfreeze refrigeration setting Ltt 99 Press Button L the chill cold storage quick deepfreeze refrigeration button indicating lamp will be lighted and the refrigerator will be in the chill cold storage chill cold storage quick deepfreeze refrigeration state and the refrigerator will be out of the chill cold storage quick deepfreeze refrigeration st
18. settle down and clog it In case considerable dirt accumulates there the whole filter screen may be blocked totally making the refrigerant unable to go through Clogging with dirt exhibits the same symptoms as that with ice namely higher gas suction pressure lower temperature of discharged gas and no gas flowing sound from the evaporator The difference between the both is as follows if the clogging is caused by dirt tapping the suspicious clogged point generally in the capillary or the connection joint of the filter may cause the refrigerant to flow through partially resulting in some corresponding change whereas in that case if you heat it with a hot towel no reaction will happen no flowing sound can be heard moreover there is no periodic change After rejecting the possibility of ice clogging it can be generally considered as the clogging due to dirt D Remedy Dismantle the system remove the dry filter from it purge the tubing with nitrogen install a new filter then evacuate it and finally charge it with refrigerant C Clogging in filter Analysis of Trouble Total clogging of a filter is rarely to occur The paste like matter formed from the substances filled into the system mostly causes this trouble or other dust after the refrigerator has been used for a longer time or by the dirt accumulated gradually inside the filter Sometimes tapping the filter nay cause a passage for flowing Touching it with your hand you will
19. you need to do is to determine whether the grounding is perfect If the grounding is no problem turn off the refrigerator immediately then check the insulation of electric circuits with an avometer b Serious electric leakage Never touch the case body of the refrigerator its door handle or other metal parts with your hand Test the refrigerator with a test pencil it will light up intensively measure the resistance between the power cord plug and the case body with an avometer the reading will be zero 0Q in the worst case the fuse will be blown Check the 3 prong outlet to see whether the live wire and the null line are inversely connected this makes the ground protection lead out from the power cord plug being connected to the live wire Another possibility is that the live wire and null line of the outdoor power supply circuit have been inversely connected accordingly this makes the null line become a live wire G Stronger vibration and loader noise 1 Refrigerator placed improperly a Uneven ground Uneven ground will cause the refrigerator to be placed unsteadily causing stronger vibration and noise during its operation b Leveling screws not properly adjusted If the leveling screws on refrigerator legs have not been adjusted properly vibration and noise will still occur even if the refrigerator has been placed on a level ground 2 Abnormal noise from compressor Three suspended spring inside the compressor ca
20. Brief Principle Diagram 20 Connect Diagram 20 SENSOR AND MALFUNCTION CODE 21 Introduce of Sensor Parts 22 Malfunction Codes Problems 22 ELECTRICAL CONTROL PRINCIPLE 23 OV IVi W n nonane nnn nnn nnn nn nnn nnn nnn nnn nnn 23 Main Control Board of HB211 23 Air Escaper Controlling Pinciple 25 Ice Maker Control Principle 25 Refrigerator Test Model 26 Fan motor Control 27 Defrosting Control 28 TROUBLE SHOOTING 30 43 Normal Phenomena not troubles for refrigerators 30 Troubles in Refrigerators and Their Remedies 30 32 Analysis of Troubles and Troubleshooting 33 44 Water Way Operation Instruction
21. CAUTION READ THIS MANUAL CAREFULLY TO g i DIAGNOSE TROUBLE CORRECTLY BEFORE OFFERING SERVICE Refrigerator SERVICE MANUAL MODEL HB21FWRSS Features 1 Chill drawer for delicatessen 2 Slide out shelf for easy food access 3 Optimized condensing system 4 Pre cooling for defrosting for freshness storage 5 Automatic problem detecting and warning system door cooling warning system 6 Vitamin C technology for fresh food storage 7 Ice making 8 Intelligent operation for automatic operation 9 Dispenser for cold drinks Haier Group EDITION 2008 03 24 CONTENTS SAFETY PRECAUTIONS 1 2 SPECIFICATIONS 222 2 3 4 PARTS IDENTIFICATIONS 5 DISASSEMBLY 29 22 non nn nnn nnn enna nnn nnn 6 12 CONTROL AND DISPLAY SYSTEDM 13 18 Control and Display Panel 13 Function Adjustment and Control Principle 14 18 REFRIGERATION PRINCIPLE 19 System Flow Chart 19 System Flow Scenograph 19 CIRCUIT DIAGRAM 20
22. CN9 Parts from left to right are 1 Connect to the horizontal girder heater Measurement of this point and null line gives the resistance 1936 1000 jof the horizontal girder heater and the operating voltage AC 220V 2 is spare CN10 parts from left to right are 1 is spare 2 Connects to live line of the compressor 3 Connects water valve Measurement of this point and null line gives the operating voltage AC 220V of the water valve 4 Connects to water valve of icemaker Measurement of this point and null line gives the operating voltage AC 220V of the water valve of icemaker 5 Connects to water valve of dispenser Measurement of this point and null line gives the operating voltage AC 220V of the water valve of dispenser 6 is null line CN11 parts from left to right are 1 Connects to L of the power filter board 2 4 Connects to fridge door switch Measurement of this point and null line gives the operation voltage DC 220V of fridge lighting 3 Connects to N of the power filter board CN12 is the power supply for the power filter board Parts from up to right are 1 2 Connect to ground line 3 4 supply DC 12V voltage 5 6 supply DC 16V voltage CN13 Connects to the live line of power cable CN14 Connects to the null line of power cable 3 Air Escaper Controlling Pinciple 1 Air escaper s open and close is controlled by fridge sensor R SNR 2 Air escaper is closed from the start of defrosting cycle to 15 minut
23. ENSOR J3 REFRIGERATOR SENSOR J4 SENSOR AMBIENT K1 FREEZER LAMP K2 REFRIGERATOR LAMP 1 K3 REFRIGERATOR LAMP 2 L1 BEAMHEATER L2 UPRIGHT BEAM HEATER L3 WATER TUBE HEATER M DISPENSER VALVE N DISPENSER SWITCH 01 THE FIRST WATER VALVE 02 ICE MAKER VALVE P DEFROST HEATER Q FUSE R OVERLOAD PROTECTOR S COMPRESSOR T PTC U RUNNING CAPACITOR R SCE NO Spare Parts Description Spare Parts Code Price Error Code 1 Refrigerator Sensor 0064000024 0 5 F1 2 Environment Sensor 0064000024 0 5 F3 3 Defrost Sensor 0064000025 0 5 F5 4 Freezer Sensor 0064000025 0 5 F2 5 Icemaker Sensor 0064000025 0 5 F6 1 Introduction of Sensor Parts 2 Malfunction Codes Problems It won t display malfunction codes when the machine is in malfunction Press freezer The name and position of sensor Name Marker Position Freezer sensor F SNR right side wall of freezer room Refrigerator sensor R SNR right side wall of fridge room ee onmen Poper RT SNR bottom of freezer hinge box sensor Icemaker sensor ICE SNR bottom of ice maker Defrost sensor D SNR top of freezer evaporator temperature control button gt and fridge temperature control button lt gt these three button simultaneously for 3 seconds malfunction codes will displayed on cabinet display panel then press these three button a new 3 seconds machine come back to natural display Machin
24. RPM or stop running and this condition last for more than 30 seconds please check the malfunction display of freezer fan motor It will come back to normal display if motor in normal condition or else display freezer fan motor malfunction still 6 2 Cooling fan motor control 1 The cooling fan motor runs at the same time with the compressor 2 How to judge the cooling fan motor is in LOCK condition If the speed of fan motor no more than 300RPM or stop running and this condition last for more than 30 seconds please check the malfunction display of cooling fan motor It will come back to normal display if motor in normal condition or else display freezer fan motor malfunction still 3 The cooling fan motor is always working at invariableness speed 1100RPM 12V Conditions for switch on Conditions for switch off 1780RPM 1500RPM 1300RPM 1 Duration from the product 1 Auto defrost mode or connected to the power forced defrost mode supply for the first time till 2 Within 12 minutes after the air escaper is closed defrost once It s the 3 The compressor stops and 2 The Product is set to general Punet the fridge air escaper is shut Fast freezing condition and Power consume mode is 3 The product is in forced the condition ae excluded starting mode of high speed 4 Freezer door is open 4 The product is in fast freezer is excluded 5 TEST MODE3 Cheater test mode 5 TEST MODE1 6
25. The fridge door is open for 2 minutes 14V 11 5V 7 Defrosting Control The product will start defrosting after compressor has running more than accumulative total 7 hours and will stop defrosting when the defrost sensor temperature rise up 7 centigrade The compressor is stop and fridge air escaper is close when defrosting The first defrosting cycle start after compressor has running more than accumulative total 4 hours if the product is powered initially or reset the control board After defrosting if the compressor has running more than accumulative total 4 hours product will controlled according to a Fridge sensor temperature is more than 10 C start defrosting immediately b Freezer sensor temperature is more than 5 C start defrosting immediately c Fridge door and freezer door has opened more than 5 times start defrosting immediately d No above instance the product will start defrosting after compressor has running more than accumulative total 7 hours The product can enter into defrosting mode and exit defrosting mode after the defrosting time is more than 120 minutes when the defrosting sensor malfunction short circuit or open circuit If defrosting time is more than 120 minutes and the defrosting sensor temperature can t reach 7 C the product will disconnect defrosting heater and display ED on fridge display area under malfunction mode until in some defrosting cycle the defrost sensor temperature reache 7
26. W series water way operation instruction 2 Outlet pipe for water filter thin connect to inlet pipe for water D E jug thick by ae Inlet pipe for 7 quick connector F water jug thick i P Inlet pipe for dispenser thick connect to green connector of water valve 4 Outlet pipe for water jug N thin B 6 1 Inlet pipe for water filter gray connect to white thick connector of water valve 6 Inlet pipe for ice maker thin connect to orange connector of water valve 1 5 Inlet pipe for dispenser thick connect to green connector of water valve 4 Outlet pipe for water jug thin HB21FW series alarm problem check If there are jingle alarm please check by following method 1 Press freezer adjust button gt and fridge adjust button lt together for 3 seconds on display panel to enter trouble displaying status estimate the trouble according to error codes Then press freezer adjust button gt and fridge adjust button lt together again to exit the trouble displaying status display panel work normally Details please see the service manual 2 Check whether the switch of freezer and fridge department lights can close normally if the switches can t close normally refrigerator will alarm continuously and not stop after 5 minutes 3 Check whether the beverage button is turned on all the time if it
27. achieved and the stoppage still occurs repeatedly it is most likely that the mechanical parts or contacts are out of order disassemble the thermostat make a thorough checkup and repair it D b Overload of electric motor Analysis of Trouble Probably too many things have been put into the refrigerator and hence the thermal load exceeds its refrigerating capacity or in case the power supply voltage drops considerably the current flowing through the motor will increase drastically making the thermal protector actuate and the fuse blown and hence the motor stops running If the motor is still running continuously in such a case its windings will be burned out Remedy Reduce the thermal load pay attention to the variation in voltage of the power supply c Abnormal thermal protection Analysis of Trouble The compressor current is within its normal range but the thermal protector actuates repeatedly Remedy Replace the thermal protector with a new one 3 Sudden stoppage due to other causes Normal Stoppage A thermostat generally controls start and stop of the compressor When the temperature in the refrigerator reaches its desired value the thermostat will shut down the compressor automatically Never take this normal operation as a trouble care should be taken to differentiate it from other real troubles in servicing D Compressor won t start In case the compressor cannot be started you must find out the origins of thi
28. age temperature vision area will flicker and when the chill cold storage temperature is set the range of the chill cold storage temperature is 34 degrees to 46 degrees and each time you press Button K the chill cold storage temperature will increase a level till the highest Level Seven is reached each time you press Button J the chill cold storage temperature will decrease a level till the lowest Level One is reached CONTROL AND DISPLAY SYSTEM 3 Deepfreeze fridge temperature adjustment Only apply for the models without the function of taking out cold drinks Press Button G or Button H the deepfreeze fridge temperature vision area H will flicker and when the deepfreeze fridge temperature is set the range of the deepfreeze fridge temperature is 7 degrees to 8 degrees and each time you press Button G the deepfreeze fridge temperature will increase a level till the highest Level Seven is reached each time you press Button F the deepfreeze fridge temperature will decrease a level till the lowest Level One is reached 4 Door body vision time adjustment When pressing Button A and Button B at the same time for three seconds the time sign D will begin to flicker after the first sound of the buzzer Press Button A to adjust the hours each time you press Button A one hour will be increased till 23 hours is reached then press Button A again 00 will be shown Press Button B to adjust the minutes each time you
29. at degree and let the pipe line go through the hole Assure the pipe has an enough margin area about 8 inches 2 4 meters and make it be three circles with the diameter of each circle about 10inches 25 centimeters and after this installment is done the refrigerator can be moved away from the wall Pipes connecting 7 Connect the pipe to the valve Put the Tightened nuts and the copper shaft on the end side of the pipe and connect the pipe to the stopping valve Make sure that the pipe is cut into the valve completely Tighten and press the nut Follow the descriptions specified in 248CMR of Massachusetts Federal Piping Standard Saddle backed is unlawful in Massachusetts and is forbidden Please consult the plumber s mate with working license 8 Clean the Pipe Power the main water supply till the water in the pipe becomes clean Turn off the water valve after having used water of about 1v 9 Connect the pipe to the refrigerator A Before connecting the pipe to the refrigerator make sure that the power line is not cut into the electric plug on the wall Note 1 Tighten the water pipe on the water valve and take the nut off the water pipe 2 And then as shown in the figure connect the end side of the water pipe to the water valve tighten the water pipe using tightening nuts 4 Operation of the Chill cold storage Vertical Girder The chill cold storage vertical girder goes around the vertica
30. ate if the chill cold storage temperature is 2 F lower than its designed temperature if you want the refrigerator to be out of the chill cold storage quick deepfreeze refrigeration state you can press Button L and the chill cold storage quick deepfreeze refrigeration button indicating lamp will be out and the refrigerator will be out of the chill cold storage quick deepfreeze refrigeration state chill cold storage quick deepfreeze refrigeration state within the set time the process of When the refrigerator is in the refrigerant quick deepfreeze refrigeration state and in the Note refrigerating remain constant without turning off the machine O CONTROL AND DISPLAY SYSTEM 7 Turn on or turn off the chill cold storage function J K When pressing chill cold storage adjustment Button J and chill cold storage adjustment Button K at the same time for three seconds the chill cold storage sign I will be out after the first sound of the buzzer an the chill cold storage function is turn off when pressing chill cold storage adjustment Button J and chill cold storage adjustment Button K at the same time for three seconds again the chill cold storage sign I will be on after the first sound of the buzzer and the chill cold storage function is turn on again 8 Celsius Fahrenheit switching function Press Button F and Button G and Button J on the vision board at the same time for three seconds the Celsius will be used after
31. ation of compressor a slight and uniform hum sound due to undulation of electric current can be heard generally this is a normal phenomenon However D if it sounds like tong tong i e an impact sound inside the compressor this means that a large quantity of wet vapor of refrigerant or refrigerating oil has come into the compressor cylinder if it sounds like dang dang a striking sound of metal parts inside the compressor this means that some moving parts have loosened note to differentiate this sound from those formed during starting or stopping the compressor b Listen to the sound caused by the flowing of gas in the evaporator Open the refrigerator door while the compressor is in operation incline your ear and listen attentively the gas flow sound inside the evaporator If it sounds like gentle whistling accompanied by a sound similar to water flowing this is the sound produced by the normal circulation of refrigerant within the evaporator In case only the gas flowing sound can be heard and there is no water flowing sound this indicates that the refrigerant has already percolated If neither the flowing sound nor the gas sounds from the evaporator can be heard this means that the filter or capillary has been clogged 3 Touch and Feel a Feel the compressor when running its temperature should be generally less than 90 C in the normal state it may exceed 90 C in case of running for a longer period of tim
32. charge pressure higher discharged gas temperature the gas discharge tubing is considerably hot when you feel it with your hand and poorer refrigerating effect Furthermore the gas discharge pressure will exceed its normal value when the compressor has run for a period not too long thus making the protective relay actuate and bring to a stoppage Remedy Check up how the air has been left in the refrigerating system Generally there are two possibilities one is that the air has been sucked into the system when repairing due to carelessness or it has not been purged out totally when evacuating the system the other is that there are leak points at the low pressure end of the refrigerating system Leak points appear mostly in those low temperature parts or assemblies because the evaporation temperature is lower for such low temperature devices especially at the low pressure end it is easier for the air goes into the system Once it has been ascertained that air does exist in the system you have to open the tubing re evacuate it and then charge it with refrigerant 2 Stoppage due to electric troubles a Thermostat is out of control Analysis of Trouble In case the thermostat does not work in its good order or its temperature sensor has not been installed properly frequent stoppage is also likely to occur Remedy Try to adjust the temperature sensor s position until the compressor can be started and stopped normally If this cannot be
33. degree appliance will exit lt FORCE DEFROST MODEL gt after heater working 1 minute When temperature around defrost sensor below 7 degree heater will work continually until reach 7 degree appliance then exit lt Force defrost MODEL gt TEST3 Under TEST2 MODE hold the freezer temperature control lt gt and REST button another 3 seconds to enter into lt Assist heater MODEL gt T3T3 will show on the display screen and force heater of upright girder heater of Freezer horizontal girder heater of water enter pipe for ice maker and heater of fridge damper to switch on during this time the lamps in fridge and freezer room are all off and display screen Power of test should be 50 4W here 6 Fan motor control 6 1 Freezer fan motor control The freezer fan motor is controlled by main control panel according to these following conditions The speed of DC fan motor is adjusted adopting PWM mode AC fan motor run directly 1 Conditions for switch on and switch off The fowling table is the control mode of DC Fan motor AC fan motor run under conditions for switch on and stop under conditions for switch off 2 When the fridge door is opened freezer fan motor start running and fridge air escaper open then fridge air escaper will shut after 2 minutes 3 Freezer fan motor stop running when the freezer door is opened 4 How to judge the freezer fan motor is in LOCK condition If the speed of fan motor no more than 300
34. e b After the compressor has operated normally for 5 10 minutes touch and feel the condenser the temperature of its upper part should be higher than that of its lower part or its right part is hotter than its left part depending on the type of condenser coil this indicates that the refrigerant is circulating If the condenser is not hot this means the leakage of refrigerant In case the condenser radiates heat for only several minutes and then cools down this means that the filter and capillary have been clogged As for the forced air cooling condenser hot air will be blown out of it this means that the system is out of order c Feel the filter s temperature During the normal operation of refrigerating system the temperature on the filter s surface should be a little higher than the ambient temperature if you touch it with your hand you will have a sense of slight heat In case dew condensation appears due to the fact that its temperature is obviously lower than the ambient temperature this means that most meshes of its screen has been clogged resulting in an obstructed flowing of refrigerant thus causing a drop in temperature due to throttling d Feel the temperature of exhaust gas from the refrigerating system the exhaust gas should be very hot and this is the normal working state For those refrigerator with enclosed type of compressor refrigerating system no frost or dew drop will from on the gas suction tube otherwise
35. e gas valve 2 Open the doors and windows for ventilation 3 Do not plug or unplug the refrigerator or other electric appliances f Always remember to unplug the appliance in the following cases 1 Unplug the appliance before cleaning and reparation 2 Unplug the appliance before replacing the old light bulb to prevent electric shock g Never store inflammable or explosive items and strong corrosive acids or alkalis in the appliance h This appliance is a household refrigerator which is produced in accordance with the specification of national standard It is intended for food storage only not for storage of blood medicine and biological products i To prevent risk of fire keep the appliance away from gasoline or any other inflammables SAFTY RECAUTIONS mmm Jy To prevent risk of electromagnetic interference or other accidents do not place any patch panel voltage stabilizer and microwave oven on top of the refrigerator or use any electric appliance unless recommended by the manufacturer inside the refrigerator Children are not allowed to play with the door or the bottle racks Serious injury may occur The internal surface of freezer compartment is very cold when the appliance is running Do not touch the surface especially when hands are wet The gap between the doors and the gap between the doors and the cabinet are very small Make sure figures do not get stuck Always keep children away when a door is opened o
36. e stopping valve on the drinking pipe that is frequently used recently 1 Turn off the main water supplying pipe routine Turn on the nearest tap till the water pipe is cleaned completely 2 Choose the position of the valve Choose a position for the valve that is easy to be approached It is recommended that the valve is connected to the side of a vertical water pipe and if it is really needed to connect the valve to a level water pipe connect it to the upside of the water pipe not the downside in case the sediment may flow out from the water pipe 3 The hole of the drill valve Drill a hole of 1 4 inches on the water pipe using a sharp drill even using an automatic valve Clean the burr left on the water pipe by the drill Not let the water flow into the drill 4 Tighten the stopping valve Tighten the stopping valve on the cold water pipe using a pipe nip Follow the rules specified in the 248CMR of Massachusetts Federal Piping Standard Saddle backed is unlawful in Massachusetts and is forbidden Please consult the plumber s mate with working license 5 Tighten the pipe tip Tighten the bolts of the pipe tip till the closing circle begins to expand Don t let the bolts of the pipe tip be too tight otherwise the water pipe is pressed flat 6 The deposing line of the pipe The deposing line between the cold water pipe and the refrigerator Drill a hole on the wall or on the floor that is near the wall to a gre
37. e will exit automatically if no manual operation Malfunction Codes Table NO Item Malfunction Code Meanings of Code 1 Normal Display Setting Temperature No F SNR short circuit or open 2 Freezer sensor malfunction F2 St P circuit 3 Environment Temperature F3 RT SNR short circuit or open Sensor malfunction circuit F1 R1 SNR short circuit or open 4 Refrigerator sensor malfunction P circuit F5 D SNR short circuit or open 5 Defrost sensor malfunction ee p circuit F6 ICE SNR short circuit or open 6 Icemaker sensor malfunction PRN circuit No single send out more than 7 Freezer sensor malfunction E1 30 seconds No single send out more than 8 Cooling fan motor malfunction E2 J 30 seconds Defrost sensor temperature cant reach to 7 centigrade 9 Defrost Heating System error Ed 3 after temperature rise more than 2 hours f Can t detect on off single when 10 Icemaker system malfunction Er icemaker rotate Electrical Control Principle 1 Overview HB21FW refrigerator electrical control principle Whole wind cooling design with controlling of fixed frequency compressor Temperature in the fridge is controlled by the fridge sensor R controlling the switch of the air escaper Temperature in the freezer is controlled by the freezer sensor F controlling the operating of the compressor Ice making operates by icemaker sensor and main control board which control the cycle of
38. ease its viscosity and cause the shaft to be seized Copper plating may also result in seizing of shaft b Seizing of piston This is caused by too small fit clearance between the piston and cylinder or expansion due to heat Judgement of seizing shaft and piston After the refrigerator has been powered on the compressor will not start and run but a slight hum sound can be heard and several seconds later thermal protective relay will actuate and make the contacts open this process will occur repeatedly but the compressor cannot be started E Compressor won t stop Sometimes the compressor will run continuously for several hours or run without end If the food placed in the refrigerator is not too much there may be the following two situations I the refrigerator very low this means that the control system is probably out of order ii the control system works normally and there are troubles in the refrigerating system or other parts 1 Temperature is set improperly a The temperature control knob is set to the coldest position This position is to be used for fast freezing or continuous running its temperature for power off is too low therefore the compressor won t stop and the temperature in the refrigerator becomes lower and lowers b Inspection method check the temperature control knob to see whether it is set in the position coldest 2 Thermostat is malfunctioning and makes the compressor r
39. es before the end of defrosting cycle 3 Air escaper is closed firstly and then opened once then open or close of air escaper is controlled according condition 1 4 If air escaper is closed more than an hour it will be opened at a time Then open or close of air escaper is controlled according fridge sensor R SNR 5 The heater of air escaper is controlled along with compressor The heater of air escaper is connected when the compressor is running and disconnected when compressor is shut 6 When the air escaper is open or close in 10 minutes if the temperature is still rising or fall the air escaper will open or close once more 4 Ice Maker Control Principle 4 10peration Process of the Icemaker Initial Control When it is powered the ice tray is set horizontally When the ice making operates the water in the tray Ice making control is cooled down The motor rotates to different directions to confirm Ice Pushing Control Mae Mera ee gt if there is ice in icebank ice testing If the ice is not full it performs the ice pushing Ice pushing will stop and ice tray will reset adjustment horizontally if freezer door is opened when ice pushing Ice testing will start again and start a new ice making cycle after freezer Water Inlet Control Test door is closed After ice pushing it performs water inlet control Then it returns to ice making control 29 The motor will rotate to start
40. f the 8 9 two wires gives the output voltage DC 11 13V of the cooling fan motor 10 12 Connect to freezer motor Measurement of the 11 12 two wires gives the output voltage DC 11 15V of the freezer motor CN5 is the socket connector for the display panel on the door parts from left to right are 1 2 are spare 3 6 Connect to the display panel on the door Measurement of the 3 4 two wires gives the output voltage DC 12V 7 8 Connect to the environment temperature sensor CNG is the socket connector to ice maker parts from up to down are 1 2 Connect to the icemaker sensor Measurement is same as freezer sensor 3 4 are spare 7 8 Connect to ice maker stop switch 9 10 Connect to Icemaker motor CN8 Connects to the electromagnetic subassembly of distributor Parts from left to right are 1 Connects to freezer door switch Measurement of this point and null line gives the operation voltage DC 220V of freezer lighting 2 Connect to the inlet pipe heater Measurement of this point and null line gives the resistance 14 1KQ of the inlet pipe heater and the operating voltage AC 220V 3 Connect to the upright girder heater Measurement of this point and null line gives the resistance 2420 130Q of the upright girder heater and the operating voltage AC 220V 4 is spare 5 6 Connect to the defrost heater Measurement of these two point gives the resistance 194 100 of the defrost sensor and the operating voltage AC 220V
41. feel that it is cooler compared with its temperature in the normal state Remedy The same as described in the capillary clogging with dirt 3 Troubles of Compressor a Breakage of gas suction and discharge valve blocks Analysis of Trouble The compressor works by means of the opening and closing of gas suction valve and discharge valve to suck and discharge the refrigerant If the valve block is broken the refrigerant can not be discharged and hence no refrigerating can be achieved Method for making judgement It is quite difficult to differentiate this trouble from others because they often have similar symptoms In repairing firstly hear attentively if there is some abnormal sound coming from the compressor sometimes the broken pieces of valve block may strike against the cylinder and feel the compressor casing with your hand to ascertain whether it is too hot this is also helpful to the troubleshooting secondly measure the pressures at the high and low pressure ports of the compressor with pressure gauges if the gas suction valve block is broken the suction pressure gauge pointer will swing violently and the suction pressure is very high whereas when the gas discharge valve block is broken the discharge pressure gauge pointer will swing drastically and the discharge pressure is very high In the both cases stop the compressor at once and if technique is available open the cylinder cover and check up the valve block repair
42. hus reducing its heat dissipation area and hence the refrigerating efficiency of the system The abnormal phenomena caused by this reason are as follows the gas suction and exhaust pressures are generally higher than their respective normal values the temperature of its condenser is higher and the electric current of the compressor rises loose frost forms on the evaporator the refrigerator temperature drops slowly and frost appears on the gas return tube b In case excessive refrigerant has been charged the liquid refrigerant that can not evaporates in the evaporator will return to the compressor and thus a phenomenon of liquid striking will occur The liquid refrigerant evaporates and effervesces as soon as it flows into the refrigerating oil at the bottom of compressor If the condition is severe foams will fill all over inside the compressor housing and be sucked by the piston causing damage to the components of compressor Remedy According to the operating procedures it is mandatory to turn the machine off and several minutes later open the refrigerant charging tube and let the refrigerant escape from it replace the dry filter recharge refrigerant after evacuating and then seal the charging port 3 There is air left in the refrigerating system Analysis of Trouble Residual air in the refrigerating system will reduce its refrigerating efficiency The prominent phenomena are the increase in its gas suction and exhaust
43. irt accumulated in the filter after using it for a certain time of period thus resulting in a decrease in flow rate and hence a poorer refrigerating effect The abnormal phenomena caused by this kind of slight clogging in the system are as follows the gas discharge pressure is lower the temperature of discharged gas drops down the position clogged has a temperature lower than that in normal conditions and for a severe clogging even dew condensation as frosting may appear Remedy Purge the tubing and after replacing the dry filter with a new one or clearing it thoroughly recharge the system with refrigerant and seal the charging port B No Refrigerating The phenomenon that the compressor runs normally but no frost or only a little frost appears on the evaporator and the refrigerator temperature does not drop down is called no refrigerating There are many causes for this trouble and it is relatively complicated too In servicing special attention to finding direct causes for this phenomenon Three main potential causes for this trouble are analyzed below 1 All refrigerant in the system has leaked out Analysis of Trouble Leak points in the refrigerating system have not been found and repaired timely thus resulting in the total escape of refrigerant There are two kinds of leakage I slow leakage for instance when we want to use a refrigerator that has been put out of quite a long time we find the leakage of refrigerant
44. is a normal sound produced by the pull in or release of the armature of a current deadweight start relay when starting the compressor The compressor motor will produce a slight and uniform sound while it is running This sound is not easy to be heard in the daytime but of course it can be heard distinctly at night 3 The compressor consists of an electric motor and a compressing apparatus During its normal operation the motor s stator core and windings will rise to a temperature in the range of 100 C 110C and the temperature of the piston and cylinder of the compressing mechanism can also reach as above 100 C due to the heat produced when compressing refrigerant Most of the heat radiates to the air through the compressor casing therefore its casing is generally at a temperature between 85 C 90 C it is very hot particularly in summer when the ambient temperature is higher All these are normal phenomena 4 For the forced air cooling refrigerator a kind of irregular crack sound can be often heard when the compressor is running for a certain period of time or has just stopped its running The stress relief due to expansion and contraction causes this sound when temperature changes and will not affect the normal application of refrigerator 2 Common Troubles in Refrigerators and Their Remedies D Causes for troubles occurring in refrigerators are closely related to the quality of components and workmanship in assembling by manufact
45. l girder orientation shaft when the chill cold storage left door body is opened After the chill cold storage left door body is opened don t circle the chill cold storage vertical girder with your hands in case the door may not be closed DISASSEMBLY 5 Dismantle all subassemblies 6 Check all the additional parts and The foam base seat as well as the materials with the machine adhesive ape as a fixed additional The articles in the box must be checked according part must bealso dismantled to the descriptions on the incasement list and if there is any difference between the description on the incasement list and the actual case please consult the seller shop for information 7 Place the refrigerator at a proper position See the previous j Position Environmentj 8 The installment of the decorating articles at the base Open the door of the refrigerant room and from the refrigerant room take out the decorating articles and install them at the proper positions and drill the bolts A For the convenience of searching information the number of the refrigerator and the number of manufacturing should be copied on the guarantee issue Note 9 Height adjustable Shelf The height of shelf can be adjusted to meet your storage needs To adjust the shelf height remove the shelf first The steps are as follows tilt the shelf up at front and lift it up and out of tracks
46. occurs particularly at the instant when you close the knife switch Remedy Check the terminals and the outer casing to see whether they are short circuited and measure the resistance of each phase with an avometer If short circuit occurs or the resistance of a certain phase is low this means that short circuit does exist in the windings and or between turns and insulation layers have been burned or deteriorated megametre can be used in this inspection too If the insulation resistance is lower than 2 MQ this means that the insulation layer is already breakdown If the motor has been burned repair it or replaced it with a new one b Fault of control relay Analysis of Trouble Overheat burnout or wear of control relay contacts may occur generally All these will cause poor contact in electricity Remedy Dismantle it to repair or replace it with a new one c Poor electric contractor in thermostat Analysis of Trouble Burnout of contractor and leakage of temperature sensing agent may occur generally Remedy Replace the old with a new one d Check the terminals for loose connection and electric circuits for other abnormal phenomena 5 Mechanical faults of compressor a Seizing of shaft This phenomenon is caused mostly by poor lubrication such as insufficient quantity of lubricant clogging in the lubricant oil line or intermittent lubricant oil supply Dirt and other impurities in the lubricant oil will incr
47. on layer inside case body and or door seal Analysis of Trouble When the heat insulation layer inside the case body deteriorates or the door seal is not closely touches the doorframe the temperature in the refrigerator will rise and makes the compressor running continuously Remedy Check the heat insulation layer for its damaged parts repair it to improve its heat insulation property If the door has deformed or the door seal is not tightly sealed against the case body repair them respectively 5 Too much food is placed in the refrigerator or is placed too densely resulting in poor ventilation or poor conditions for temperature sensing and hence no stoppage of the compressor 6 Too high ambient temperature poorer ventilation and heat dissipation makes the compressor running without stop F Electric leakage of refrigerator 1 Slight electric leakage Electric insulation has deteriorated due to being affected with damp thus resulting in slight electric leakage 2 Serious electric leakage Refrigerator case has become live due to faults occurred in some electric devices or the erroneous wiring in installing power cord plug or outlet by the user This is very dangerous 3 Electric leakage test a Slight electric leakage A tingle sense will be experienced as soon as you touch the metal parts of the refrigerator with your hand When you test them with a test pencil its neon lamp will come on In that case the first thing
48. our finger if you just apply a little effort 5 Refrigerating oil left in evaporator tubing Analysis of Trouble During the process of refrigerating cycles a little refrigerating oil may remain in the evaporator tubing and after a longer time of operation if there is considerable refrigerating oil left in the evaporator the heat conduction effect will be severely affected thus causing a poor refrigerating effect Remedy It is quite difficult to determine whether this trouble is caused by the refrigerating oil left in the evaporator tubing because this kind of phenomenon and other several trouble are tends to be D confused Generally speaking you can make a judgment based on the frost formed on the evaporator If the frost does not cover the evaporator and moreover it is loosely formed you can make a judgment that the deterioration of refrigerating effect is due to the accumulation of refrigerating oil left in the evaporator tubing in case no other troubles have been found To clear off refrigerating oil left in the evaporator dismantle the evaporator purge it thoroughly and then dry it In case it is difficult to dismantle it charge refrigerant from the evaporator inlet to wash it several times then purge and dry it with nitrogen 6 Flowing obstructed in refrigerating system Analysis of Trouble Because the refrigerating system was originally not purged thoroughly some of the filter screen meshes have been clogged by d
49. partment works normally at the beginning but after working for a certain period of time frosting begins at the clogged position evaporation temperature reaches below 0 C water will accumulate at the narrow part of the capillary and clog it gradually then frost begins to melt at the evaporator no gas flowing sound can be heard and the gas suction pressure assumes a state of vacuum Note that these phenomena will appear intermittently sometimes the refrigerator works well and sometimes not well In order to determine whether it is clogged with ice heat the suspicious points with hot water to make ice melt and after a while if a gas flowing sound resulting from an abrupt gush is heard and the gas suction pressure rises as well it can be confirmed that the trouble is caused by ice clogging Remedy If there is too much moisture in the refrigerating system it is advisable to release the refrigerant purge the tubing with nitrogen and then charge the system with the filtered refrigerant However the commonly adopted method is to connect a filter with moisture absorbers such as silica gel anhydrous calcium chloride to the refrigerating system so as to filter out the moisture from the system then replace the filter evacuate it again and finally charge the system with refrigerant b Clogged with dirt in capillary Analysis of Trouble The capillary inlet is a place where coarse grained dirt or refrigerant oil in the system will tend to
50. pressures however the gas exhaust pressure will not exceed its rated value obvious increase in temperature in the segment from the compressor outlet to the condenser inlet Because there is air in the system both the gas exhaust pressure and temperature will rise and moreover the gas flowing sound is intermittent and obviously louder Remedy After shut down for several minutes open the tubing evacuate it and then recharge the system with refrigerant 4 Low efficiency of compressor Analysis of Trouble Low efficiency of a refrigerating compressor refers to the actual reduction of gas discharge capacity and hence the corresponding reduction of refrigerating capacity under the condition that the refrigerant in the system is unchanged This phenomenon occurs mostly when the compressor has been used for quite a long time its moving parts have worn to a considerable degree fit clearance between various parts have increased and sealing property of its gas valve has deteriorated resulting in an decrease in its actual gas discharge capacity Methods of Judgment Measure the high and low pressures with pressure gauges to see whether they are normal If an abnormal sound comes from the compressor or the temperature of its causing is too high cut the discharge port open and operate the compressor feel it if there is pressure at the discharge port with your finger For a normal compressor its discharge port is difficult to be blocked with y
51. r closed Do not splash water onto the refrigerator Keep off places of high humidity that may have adverse effect on the electric insulation performance No dismantlement or modification can be made without authorization Damage to refrigeration system is strictly prohibited Reparation must be carried out by authorized personnel Bottled beer or beverage should not be stored in the freezer compartment risk of explosion Unplug the appliance in the event of power interruption or cleaning The appliance can be plugged again only after an interval of at least 5 minutes to prevent damage to the compressor caused by frequent startups Please remove the door door seal and shelves before disposal of the old appliance and put them away in a safe place to prevent children from being entrapped SPECIFICATIONS Refrigerator Photo pu SSS Commercial brand Haier Product description REFRIGERATOR FREEZER Type of Appliance FS freestanding BI built in FS Energy efficiency class A Climate class N 18 32 C T 18 43 C SN N Freezer compartment Star rating kkk Gross capacity L 586 Total net capacity L 557 Defrosting H manual A automatic Fridge Freez A Defrost water outlet Yes Air circulating ventilator Yes Kind of coolant R134a R600a R600a Foaming components HFC 245fa Colours see L Voltage frequency V Hz 220 240 V 50Hz Input power W 120 Length
52. r cracks and various welding points for leaks if leakage occurs an oil stain can be seen definitely b Check the suction and exhaust pressure values high pressure and low pressure of compressor to see whether they are normal c Check the conditions of frost attached to its evaporator and gas return tube It is abnormal if frost has formed on part of the evaporator or there is no frost attached to it This criterion is not applicable to the evaporator of refrigerator compartment d Pay attention to the speed of temperature drop inside both the refrigerator compartment and freezer compartment It is abnormal if the speed of temperature drop is obviously slower than the corresponding normal speed e Check the environment to see whether it is suitable for placing a refrigerator f Check refrigerator door seal case and table surface and heat insulation layer 2 Listen a Listen to the noises produced when the compressor is running Hums from a fully enclosed aggregate unit is the sound caused by overload indicating that the motor cannot be started normally meanwhile a clattering sound can be heard from inside the start relay which is produced because the start contacts cannot be released normally whistling sound is caused by the high pressure gas flowing out of the crack of the pressure tube inside the compressor and clucks are the sound of striking after the suspended spring inside the compressor has broken During the normal oper
53. rather you should place the refrigerator for about 6 hours without turning on the power After at least 6 hours turn on the power so that the refrigerator can operate well 15 Replacing the Light Bulb refrigerator Bulb specifications 220V 25W Socket E14 DO NOT use a bulb over 25W Square hole Unplug the appliance 5 N amp To remove the light shield press the stopper at rear out of the square hole Sue 2 Pull the shield backward until the retainer is 5 lightsocket separated from the square hole 2 E L J Retainer Turn the bulb anticlockwise and out Replace a bulb of the same specifications in the reverse se aS gt Stopper sequence of removal W Ta Light bulb To replace the light shield Engaged the retainer into the square hole and then press the shield rear forward until the stopper is locked in the square hole DISASSEMBLY 16 Replacing the Light Bulb Bulb specifications 220V 25W Socket E14 DO NOT use a bulb over 25W To replace the light bulb Screw hole 1 Unplug the appliance Remove the front screw with a screwdriver To remove the light shield press the stopper at front out of the square hole Pull the shield forward until the retainer is separated from the square hole 2 Turn the bulb anticlockwise and out Replace a bulb of the same specifica
54. s trouble through checkup step by step because probably there are many causes including those electrical and mechanical 1 Inspect the power supply to see whether it is connected to the compressor circuit Analysis of Trouble In case the compressor cannot be started this will generally exhibit in the power supply circuit for instance power failure poor contact of switch and blown fuse Make a comprehensive analysis of these phenomena find out its real cause and take correct measures to remove this trouble Remedy a Check the input power circuit to see whether where is voltage of the power supplies namely the circuit which is connected to the knife switch This can be determined with an avometer or a test pencil If a blown fuse is found ascertain and remove its cause then replace it with a new one of the same specifications 39 b Check the compressor accessories including its thermal protector and relay In case the thermal protector is damaged the compressor cannot be powered on If the relay is out of order the motor will not run and hum sound can be heard from it after the compressor is turned on in that case shut it down immediately otherwise the motor windings will be burned out in case this condition lasts longer c Check the relay contacts and plugs to see if they are perfect and work reliably Poor contact may cause the motor not running or humming 2 Check the circuit voltage to see whether it is normal
55. se are out of balance and strike against the case moreover the wear of compressor parts may cause noise sometimes 3 Resonance of tubing and loosening of parts Improper and compact laying of tubes or the loosening of parts may cause vibration and noise 4 Large noise of the fan a The fan motor is loose b Noise is produced by normal operation of the fan c The impellers are not tightly fixed or eccentrically assembled Remedy For reason a Fasten the fan motor For reason b or c Replace the fan motor or impellers 5 inspection method To find the sources of noise press the vibration spot with your hand while the refrigerator is in operation and listen attentively whether the vibration becomes weaker or vanishes If the refrigerator has not been levelly placed put a level meter on its top table and adjust the leveling screws on its legs In case noise occurs from the compressor strike different locations on the side surface of its case using a rubber hammer or hand hammer with a wood block in between so as to determine whether the suspended springs are out of balance or being seized Water Way Operation Instruction HB21FW series water way operation instruction 1 Inlet pipe for water filter 2 Outlet pipe for water filter 3 Inlet pipe for water jug 4 Outlet pipe for water jug 5 Inlet pipe for outside dispenser 6 Inlet pipe for ice maker Orange Water valve O Green GO O White f 6 HB21F
56. the first sound of the buzzer Press Button F and Button G and Button J on the vision board at the same time for three seconds again the Fahrenheit will be used after the first sound of the buzzer 9 The indicated meaning of the water filter aill 887 j M N Only apply for the models with the function of taking out cold drinks alll 887 ttl 88 M N Only apply for the models without the function of taking out cold drinks When the indicating light of the water filter is lighted it means the water filter should be changed And after the water filter is changed please press the water filter reset button M and the indicating light of the water filter N is out CONTROL AND DISPLAY SYSTEM 10 The function of showing and controlling 30 seconds after Operating the refrigerator by pressing the button the vision screen is out automatically and if you press any button or open any door or take out the cold drink the vision screen will be shown to be on 11 Exceptions Indicating When exceptions on the main controlling function of the refrigerator happen the exceptions signs will appear on the vision areas of the chill cold storage or refrigerant temperature and the exceptions signs are F1 F2 F3 F5 F6 Ed ER EO El E2 If this case really happens please consult the sold repairing department to have the refrigerator repaired in order to test the optimizing controlling of the refrigerator 12 Door opening
57. there is something wrong in the system Frosting and dew condensation may appear for a very short time period when just starting the machine this is a normal phenomenon Because a refrigerator is a combination of several components they are related and have influence on each other In case an abnormal phenomenon has been found through the above mentioned checkups you need not to make a hasty conclusion based on only one abnormal phenomenon It is advisable to find out two or more abnormal phenomenon or conduct troubleshooting comprehensively with the aid of instruments or other ways because several kinds of troubles may share a common abnormal phenomenon and two or more abnormal phenomena may occur simultaneously due to a certain trouble With this method you can reject some suspicious troubles and finally make a correct judgment 3 Analysis of Troubles and Troubleshooting A Poor Refrigerating Effect The so called poor refrigerating effect refers to the fact that the refrigerator can operate and refrigerator normally but the temperature in the refrigerator cannot drop to the prescribed value under the stipulated working conditions In view of there are many causes for this phenomenon we are going to discuss and analyze it in the following 7 aspects 1 Leakage of refrigerant Analysis of Trouble The leakage of refrigerant in the system will result in an insufficient refrigerating capacity the resulting phenomena are its
58. tions in the reverse sequence of removal 3 To replace the light shield Engaged the retainer into the square hole and then press the shield front backward until the stopper is locked in the square hole Replace and tighten the screw yeyoos juBI 1979814 Stopper Retainer Freezer light bulb 17 How to User the Crisper The appliance is equipped with a crisper for vegetable and fruit storage You can set the humidity to meet your storage needs 1 Turn the humidity regulator located at the upper right Humidity regulator corner of the crisper up to get a higher humidity suitable for storage of cucumber grape kiwifruit and persimmon etc D 2 Turn the humidity regulator located at the upper right corner of the crisper down to get a lower humidity suitable for storage of strawberry orange bean garlic watermelon plum and tomato etc 18 How to Use the Delicatessen Drawer Air control knob The appliance is equipped with a delicatessen drawer with a temperature range from 2 C 3 C The temperature can be adjusted by the air control knob to meet your storage needs 1 Turn the air control knob leftwards weak to reduce the cooled air moving in the delicatessen drawer and maintain a higher diode see se temperature 1 2 Turn the air control knob rightwards strong to increase the cooled air moving in the delicatessen drawer and maintain a a 22508 2 0 cr lower temperature
59. unning continuously Analysis of Trouble When the thermostat doesn t work normally it will make the compressor run continuously and hence very low temperature will be achieved in the refrigerator The fault is generally due to the fact that the contacts of the thermostat cannot be released Remedy Dismantle the thermostat and make a through checkup if it is totally out of functioning replace it with a new one 3 evaporation temperature is too high in refrigerating system resulting in lower refrigerating capacity and hence continuous running of compressor Analysis of Trouble Leakage of refrigerant and clogging in a refrigerating system will directly affect its refrigerating capacity Due to the reduction in its refrigerating capacity the refrigerator temperature cannot reach its rated value the thermostat won t work and thus the compressor runs continuously When the evaporation temperature in the system is too high the temperature sensing agent in the temperature sensor is also hotter therefore the thermostat is unable to cut off the power supply to the compressor and stop it Remedy If it has been found that the refrigerant in the system is insufficient in quantity recharge it with refrigerant In case clogging occurs disassemble the part where it is blocked If the evaporation temperature is too high settle this problem with an appropriate quantity of refrigerant 4 No stoppage of compressor due to damaged heat insulati
60. urers as whether refrigerators are properly used and maintained The parameters generally used to express the working conditions of a refrigerator include the temperature inside the refrigerator operation rate electric power consumption noise level and other functional indexes If any one of these parameters is beyond its permissible range this indicates that there is a fault or trouble in the refrigerator During the whole service life of a refrigerator the probability of troubles occurring within a union time is called its failure rate Making a comparison between the control circuit system of a refrigerator and its refrigerating system we can find that the failure rate of the former is higher and that of the thermostat is the highest In troubleshooting the first thing you must do is to determine where the trouble comes from the control system or the refrigerating system There is general no trouble indicating instrument mounted on the domestic refrigerator locations and natures of troubles should be determined according to their respective features therefore experience in servicing is very important to troubleshooting Service technicians with rich experience can correctly locate them and take reasonable remedy measures based on their comprehensive analysis of trouble characteristics as well as operating conditions for various kinds of refrigerators Three Essentials for Checkup 1 Look a Check the tubing of refrigerating system fo

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