Haier HB21FWRSS Service Manual

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Installation and user manual (30 pages)

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Page 1 READ THIS MANUAL CAREFULLY TO 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...
Page 2: Table Of Contents
CONTENTS SAFETY PRECAUTIONS----------------------------------------------------------------1-2 SPECIFICATIONS--------------------------------------------------------------------------3-4 PARTS IDENTIFICATIONS--------------------------------------------------------------5 DISASSEMBLY------------------------------------------------------------------------------6-12 CONTROL AND DISPLAY SYSTEM--------------------------------------------------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 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...
Page 3: Safety Precautions
SAFTY RECAUTIONS 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.
Page 4 SAFTY RECAUTIONS 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.
Page 5: Specifications
SPECIFICATIONS Refrigerator Model HB21FWRSS Photo Commercial brand Haier REFRIGERATOR-FREEZER Product description Type of Appliance (FS= freestanding BI= built-in) Energy efficiency class Climate class (N= + 18-32 °C T=+ 18-43 °C) SN/N Freezer compartment / Star rating **** Key features Gross capacity...
Page 6 Number Type (gr=grill/g=glass/p=plastic) Colour of shelves Adjustable Drawers: Number n°. Crisper: Salad crisper(s) transparent / white transparent Equipment & Accessories Control Panel: Control panel interior / exterior Exterior Thermometer interior / exterior Ex terior Control lamps green / yellow / red Over temperature ALARM LED / acoustic acoustic...
Page 7: Parts Identifications
PARTS IDENTIFICATIONS Freezer Diary foChill-cold storage Liquid rack Slide rack Fruits and Gallon bottled seat Cooked- Ice-making drawer Deepfreeze refrigeration big drawer Deepfreeze Ice-maker fridge Ice spoon 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.
Page 8: Disassembly
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. Remove the door and place it in a proper Remove the middle hinge if necessary.
Page 9 DISASSEMBLY 3. Pipes connecting Install the 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.
Page 10 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.
Page 11 DISASSEMBLY 6. Check all the additional parts and 5. Dismantle all subassemblies materials with the machine. The foam base seat as well as the The articles in the box must be checked according adhesive ape as a fixed additional to the descriptions on the incasement list, and if part must bealso dismantled.
Page 12: Removing Crisper Cover
DISASSEMBLY Removing Crisper Cover Take out the crisper and put it away. Lift up the cover end (1) and remove it (2). 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.
Page 13 DISASSEMBLY Place the refrigerator without turning on the power. After the refrigerator is placed at a flat position and cleaned, don¡¯t turn on the power immediately, 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.
Page 14: Disassembly
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. Square Remove the front screw with a screwdriver. hole To remove the light shield, press the stopper at front out of the square hole.
Page 15: Control And Display System
CONTROL AND DISPLAY SYSTEM The door body vision controlling screen A …………Hour Button B …………Minute Button C………… Lock Button D……………Time Area Function adjustment and control principle 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...
Page 16 CONTROL AND DISPLAY SYSTEM 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;...
Page 17 CONTROL AND DISPLAY SYSTEM 3. Deepfreeze fridge temperature adjustment (Only 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) 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;...
Page 18 CONTROL AND DISPLAY SYSTEM 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;...
Page 19 CONTROL AND DISPLAY SYSTEM 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.
Page 20: Control And Display System
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.
Page 21: Refrigeration Principle
REFRIGERATION PRINCIPLE SYSTEM FLOW CHART ５４６３７２１ SYSTEM FLOW SCENOGRAPH...
Page 23: Brief Principle Diagram
CIRCUIT DIAGRA/SENSOR AND ERROR CODE Brief principle diagram SENSOR AND MALFUNCTION CODE Spare Parts Description Spare Parts Code Price ($) Error Code Refrigerator Sensor 0064000024 Environment Sensor 0064000024 Defrost Sensor 0064000025 Freezer Sensor 0064000025 Icemaker Sensor 0064000025...
Page 24: Introduce Of Sensor Parts
1. Introduction of Sensor Parts 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 Environment temperature RT SNR bottom of freezer hinge box sensor Icemaker sensor ICE SNR...
Page 25: Electrical Control Principle
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.
Page 26 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. CN6 is the socket connector to ice maker, parts from up to down are: 1-2 Connect to the icemaker sensor;...
Page 27: Air Escaper Controlling Pinciple
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.
Page 28: Refrigerator Test Model
The motor will rotate to start ice pushing, when the temperature of ice maker sensor drop to -12℃ 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 “<”...
Page 29: Fan Motor Control
button a new 3 seconds to enter into <FORCE DEFROST MODEL>, “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.
Page 30: Defrosting Control
Conditions for switch-on Conditions for switch-off 1780RPM 1500RPM 1300RPM 1.Duration from the product Auto defrost mode connected to the power forced-defrost mode; supply for the first time till Within 12 minutes after the air escaper is closed defrost; once; It’s 3.
Page 31 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.
Page 32: Troubleshooting
TROUBLESHOOTING Troubleshooting and Repair 1. Normal Phenomena—Not Troubles for Refrigerators 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.
Page 33 Causes for troubles occurring in refrigerators are closely related to the quality of components and workmanship in assembling by manufacturers 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.
Page 34 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).
Page 35: Analysis Of Troubles And Troubleshooting
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...
Page 36 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...
Page 37 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.
Page 38 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...
Page 39 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.
Page 40 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”...
Page 41 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.
Page 42 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.
Page 43 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. A megametre can be used in this inspection, too. If the insulation resistance is lower than 2 M , this means that the insulation layer is already breakdown.
Page 44 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.
Page 45 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.
Page 46 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.
Page 47: Water Way Operation Instruction
Water Way Operation Instruction ４５...
Page 48 ４６...

Haier HB21FWRSS Service Manual

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