Table of Contents
Related Manuals for Haier HRF- 329AA
Summary of Contents for Haier HRF- 329AA
- Page 1 REFRIGERATOR Service Manual Features l A energy l Automatic controlling temperature l Three-cooling system l Bright VFD display Serial number: ER03SM0415-01 HRF-369AA Models: HRF- 329AA HRF- 349AA HRF- 369AA Haier Group Version number: 00.00 Edition: 2003-04-15...
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Page 2: Table Of Contents
CONTENT 1. Content………………………………………………………… 1 2. Product code illumination and Series Introduction…… 2 3. Specifications……………………….……..…………………. 3 4. Safety precautions……………………………………….….. 4 5. Parts and Functions…………………………………………. 7 6. Function Schedule……………………………...…….…… 8 7. System Flow Chart……………..………………………...…. 9 8. Program Diagram…………………………..………………. 10 9. Maintenance Service and Trouble Shooting…….…... 11 CONTENT... -
Page 3: Product Code Illumination And Series Introduction
Product code illumination and Series Introduction H R F — 369 AA series Gross capacity (according to export country standard) Freezer Refrigerator Haier product... -
Page 4: Specifications
Specifications Models Net capacity (L) Color Power Supply (V/Hz) Rated Input Power (W) Power Consumption (kW.·h/24h) Net Weight (kg) Gross Weight (kg) Unit Dimension (D*W*H) (mm) Packing Dimension (D*W*H) (mm) Container Quantity 40’(PCS) Container Quantity 40’HC(PCS) HRF-329AA HRF-349AA Silver Silver 220-240~/50 220-240~/50 0.62... -
Page 5: Safety Precautions
Safety precautions Safety precautions... - Page 6 Safety precautions...
- Page 7 Safety precautions...
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Page 8: Parts And Functions
Parts and Functions Parts and Functions... -
Page 9: Function Schedule
Function Schedule 1. Three cooling system There are three separate cooling parts in the refrigerator — refrigerator、 freezer and soft freezer.seperately 2. Automatic temperature control Automatic temperature control under varied ambient temperature conditions for an optimized cooling achievement 3. Application of inverter technology The advanced inverter technology is applied for integration of noise reduction and super freezing. -
Page 10: System Flow Chart
1->2->3->4->5->6->7->9 1->2->3->4->5->9. When the refrigerator is just powered on, the refrigerant flows through adjust temperature compartment evaporators compartment evaporators. After the adjust temperature compartment temperature has reached the required value, the solenoid valve is energized, thus cause the refrigerant to flow through the Refrigerator Compartment evaporators、... -
Page 11: Program Diagram
Program Diagram Start Read T T>Ts Stop Read T T>Ts Ts+Td>t>Ts Ts+Td>t>Ts Ts+Td+t>T>Ts+Td Ts+Td+2t>T>Ts+Td+t Ts+Td+2t>T>Ts+Td+t Ts+Td+mt>T>Ts+Td+(m-1)t N=Nmax T ---- Factual Temperature Ts ----- Enactment Temperature Td----- No~Off Extent t ------ Temperature Increment N----- Compressor Rotate Speed < ……..< N < N <... -
Page 12: Maintenance Service And Trouble Shooting
Maintenance Service and Trouble Shooting 1 No cooling No cooling If compressor can run after it stop to run five minutes and give power. If compressor can run naturally and temperature raising of condenser is very low Block by ice or dirty things,change filter and change refrigerant again. - Page 13 1 The thermostat was set at the coldest position. 2 The ambient temperature is very high or the refrigerator is near by heat resource. 3 The door was opened too many times or there are more fresh food inside.
- Page 14 Maintenance Service and Trouble Shooting 3 Cooling capacity is insufficient Cooling capacity is insufficient Is the ambient temperature low than Check the therostat is 16℃ correct? Does the refrigerant Adjust and instruct leak siowly?. consumer how to use. Repair...
- Page 15 Maintenance Service and Trouble Shooting 4 The compressor doesn’t work The compressor doesn't work. Does the refrigerated room lamp illuminate when the door is opened? Is the ambient temperature low than 16℃ Does the control panel has 220V power output? Does the compressor has 220V power output?
- Page 16 ,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 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...
- Page 17 ,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...
- Page 18 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...
- Page 19 ,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...
- Page 20 Maintenance Service and Trouble Shooting There many 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...
- Page 21 Turn the refrigerator off ,and make preparations for defrosting ,open the refrigerator door to let the air come in ,or use a fan to speed up air flowing so as to shorten the time needed for defrosting .Never strike the frost layer with any iron tools or wood stick in order to avoid damage to the evaporator tubing .
- Page 22 :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 ,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 ;...
- Page 23 ,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 compartment works...
- Page 24 Total clogging of a filter is rarely to occur. This trouble is mostly caused by the paste-like matter formed from the substances filled into the system 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 feel that it is cooler compared with its temperature in the normal state.
- Page 25 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.
- Page 26 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 27 Maintenance Service and Trouble Shooting a) Check the input power circuit to see whether where is voltage of the power supply, 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.
- Page 28 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;...
- Page 29 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.
- Page 30 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 (0Ω);...
- Page 31 4) 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...