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Haier PBFS21EDAB, Service Manual

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Haier PBFS21EDAB Service Manual Download Page 1

CAUTION

READ THIS MANUAL CAREFULLY TO
DIAGNOSE TROUBLE CORRECTLY
BEFORE OFFERING SERVICE

.

Refrigerator

SERVICE MANUAL 

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

Haier Group

6.Vitamin C technology for fresh food storage

7.Ice making

8.Intelligent operation for automatic operation
9.Dispenser for cold drinks 

MODEL:

PBFS21EDAW/B/P/S/E

RBFS21TIAW/B/P/S/E

                                                                             RBFS21SIAW/B/P/S/E 

                                                                                      PRFS25EDAP/S/E

Summary of Contents for PBFS21EDAB

Page 1: ... access 3 Optimized condensing system 4 Pre cooling for defrosting for freshness storage 5 Automatic problem detecting and warning system door cooling warning system Haier Group 6 Vitamin C technology for fresh food storage 7 Ice making 8 Intelligent operation for automatic operation 9 Dispenser for cold drinks MODEL PBFS21EDAW B P S E RBFS21TIAW B P S E RBFS21SIAW B P S E PRFS25EDAP S E ...

Page 2: ...4 REFRIGERATION PRINCIPLE 9 System flow chart 9 4 CIRCUIT DIAGRAM 10 11 4 1 Schematic 10 4 2 Connect diagram 11 5 Sensor and Error code 12 6 TROUBLESHOOTING 13 30 6 1 Common Troubles in Refrigerators and Remedies 13 24 6 2 Instruction of replacing mullion heater and sensor 25 30 7 Other Icemaker and defrost details 31 CONTENTS ...

Page 3: ...PRODUCT CODE and SERIES INTRODUCTION Model Designations Bottom Mount 21 25 cu ft Refrigerator Freezer Details ...

Page 4: ...R Gallon bottled seat Cooked IRRG ER Ice making drawer Deepfreeze refrigeration big drawer Deepfreeze fridge Ice spoon Ice maker Ice meeting drawer Drawer clapboard Deepfreeze fridge big drawer 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 Note ...

Page 5: ...nge by means of hexagonal screwdriver and then remove the hinge ĹRemove the door and place it in a proper position ĺ Remove the middle hinge if necessary 2 Removing and replacing the left door of refrigerator compartment ķUnscrew the upper left hinge cover by means of screwdriver and then remove the hinge cover ĸUnscrew the upper left hinge by means of hexagonal screwdriver and then remove the hin...

Page 6: ...ck Button D Time Area E K L M N K M N E Quick refrigerant button F G Deepfreeze fridge temperature adjusting button H deepfreeze fridge temperature indicating area I Chill cold storage temperature indicating area J K chill cold storage temperature adjusting button L Chill cold storage quick deepfreeze fridge 0 DWHU OWHU UHVHW EXWWRQ 1 DWHU OWHU LQGLFDWLQJ ODPS F G H I J F G H I J ...

Page 7: ... WHPSHUDWXUH DGMXVWPHQW Press Button J or Button K the chill cold storage 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...

Page 8: ... apply for the models with the function of taking out cold drinks Only apply for the models without the function of taking out cold drinks F G H F G H RRU ERG YLVLRQ WLPH DGMXVWPHQW MXVW IRU 3 6 35 6 VHULHV 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...

Page 9: ...e out of the refrigerant quick deepfreeze refrigeration state KLOO FROG VWRUDJH TXLFN GHHSIUHH H UHIULJHUDWLRQ VHWWLQJ 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 qui...

Page 10: ...l cold storage function is turn on again HOVLXV DKUHQKHLW VZLWFKLQJ IXQFWLRQ 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 ...

Page 11: ...epairing department to have the refrigerator repaired in order to test the optimizing controlling of the refrigerator 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 10 The function of showing and ...

Page 12: ...REFRIGERATION PRINCIPLE 1 Compressor 2 Mullion Heater 3 Dry Filter 4 condenser 5 Mullion Heater 6 Evaporator 7 Capillary tube SYSTEM FLOW CHART SYSTEM FLOW SCENOGRAPH ...

Page 13: ...CIRCUIT DIAGRAM 1 Schematic ...

Page 14: ...2 Connect diagram for PRFS25EDA series ...

Page 15: ...0 ice maker motor CN 6 Ice Maker CN9 Dispenser 1 neutral 1 2 damper heater CN 7 Drawer 9 10 light switch 7 8 temp sensor 5 dispenser arm switch 4 dispenser lamp 3 dispenser heater 2 Ice dispenser door solenoid 1 freezer lamp 2 auger motor 3 ice crusher solenoid 5 defrost heater fuse 6 neutral 7 10 Damper mtr 5 6 damper htr 1 2 temp sensor CN 10 1 drawer lamp 4 ice maker water valve 3 main water 5 ...

Page 16: ...GH ZDOO RI UHH HU FRPSDUWPHQW PELHQW VHQVRU URXQGHG 8QGHU XSSHU KLQJH OHIW FRYHU HIURVW VHQVRU 7RS ULJKW FRUQHU HYDSRUDWRU FHPDNHU VHQVRU FHPDNHU IOH WUD K XPLGLW VHQVRU FXELF 8QGHU XSSHU KLQJH OHIW FRYHU HQWLJUDGH ć 5 VHQVRU PELHQW VHQVRU 5 VHQVRU FHPDNHU VHQVRU HIURVW VHQVRU DKUHQKHLW ć ć ć ć ć ć ć ć ć ć ć ć ć ...

Page 17: ...ial 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 ...

Page 18: ... 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 hig...

Page 19: ...aring 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 ...

Page 20: ...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 a...

Page 21: ...e 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 ...

Page 22: ...iod 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 pressur...

Page 23: ...ts 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 this trouble through checkup step by step because probably there are many causes including those ele...

Page 24: ...ermal 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 grad...

Page 25: ...e 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 increase...

Page 26: ...ue 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 r...

Page 27: ... 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 you need to do ...

Page 28: ...d 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 fin...

Page 29: ...ix the earth wire 1 1 Install top axis of mullion through the heater 2 Paste the heater onto mullion 2 4 4 Install the reinforce metal and foam on the bottom cover 5 Fix the bottom cover on the mullion then fix the spring bottom axis foam airproof 5 6 6 Fix the top axis and top cover 7 Fix the 5 screws Preinstall mullion is OK TROUBLESHOOTING ...

Page 30: ... and bottom cover 5 Remove the screw fixing earth wire 6 6 Tear off the heater and replace a new one Then Install it according to the steps above 5 3 Remove the screws on mullion 1 Remove the screws on mullion 2 Disconnect the earth wire and connector 1 2 3 4 2 After reassembly mullion run 5 10 minutes feel surface of the mullion If it s not warm check the connection and reconnect if necessary ...

Page 31: ... will cause gap between the airproof and horizontal mullion 1 1 Remove the screws fixing horizontal mullion 2 2 Dismantle the horizontal mullion and foam airproof 3 3 Disconnect the linking clip and mullion heater 4 4 Remove the screw fixing earth wire of heater then tear off the heater 5 Install the horizontal mullion according to the above steps ...

Page 32: ...ice Place the sensor in middle of the clips Install the FRZ sensor according to the above steps 1 1 Remove the FRZ airpassage cover 2 2 Remove the rear gasket of FRZ airpassage cover then you can see the FRZ sensor 3 3 Take off the sensor from the clip 4 FRZ sensor wire ...

Page 33: ...0mm two thread and with electric iron plating soldering tin 4 connection port 4 connection electric iron pyr oconde nsation pipe Make pyrocondensation tube cover the two thread and with electric iron jointing two ports old sensor port and new sensor port pay attention to not causing burr 5 seal electric iron seal glue After jointing together make pyrocondensation located connection jointing point ...

Page 34: ...ction of signal input terminal on Inverter PCB is right Notice right of signal input terminal is while the left is multimeter If it s wrong connection reconnect them 7 Test the output of control signal on main control PCB Measure the voltage of two black wires and the red wire signal control wire of Inverter PCB Notice The multimeter must be on DC generally speaking the voltage is 2 5V multimeter ...

Page 35: ...ertain time proportion if the humidity is heavy or more door openings 5 The Center mullion heater will stop working under proper humidity or less door openings 6 And it s 25W 529 There are the technical datas in connect diagram in service manual 7 The icemaker will stop when drawer is opened even in harvest time 8 You can manually start the icemaker according to pressing FRZ and REF temp adjust ke...

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