Related Manuals for Haier RF-8888-193
Summary of Contents for Haier RF-8888-193
- Page 1 HAIER REFRIGERATOR Service Manual PART # RF-8888-193 HAIER AMERICA TRADING, LLC www.haieramerica.com...
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Page 2: Table Of Contents
Specification Safety precautions Refrigerating Principle Principle Of Electrical Control Troubleshooting And Repairs TABLE OF CONTENTS... -
Page 3: Specification
SPECIFICATION MODEL Capacity Power supply Rated power input Power consumption Net weight Gross weight Unit dimensions Package dimensions Container quantity Container quantity HBF05EABB (gallons) 47.5 V/Hz 115V / 60Hz k*W*h / 24hrs 0.60 (lbs) 83.7 (lbs) 93.6 (D x W x H) in 23.6 x 23.6 x (33 x 3.4) (D x W x H) in 26.3 x 25.9 x 36... -
Page 4: Safety Precautions
SAFETY PRECAUTIONS Read all the instructions before using the appliance. When using this appliance, always exercise basic safety precautions, including the following: 1. Use this appliance only for its intended purpose as described in this operation manual. 2. This appliance must be properly installed in accordance with the instruction before it is used. - Page 5 1. Always connect CO gas cylinder to a regulator. Failure to do so could result in an explosion with possible death or injury when the cylinder valve is opened. 2. Never connect CO gas cylinder directly to beer keg. 3. Always secure CO gas cylinder in an upright position.
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Page 6: Refrigerating Principle
The refrigerating system of direct cooling single-system refrigerators belongs to the category of dual temperature and single-control refrigerating system. The heat conducting area of the corresponding evaporator determines the refrigerating capacity of its refrigerator or freezer compartment. After being throttled by the capillary, the low-pressure refrigerant flows through the refrigerator compartment evaporator first and then the freezer compartment evaporator, thus, completing the whole process of refrigeration. -
Page 7: Principle Of Electrical Control
PRINCIPLE OF ELECTRIC CONTROL HBF05NABB RATED VOLTAGE 115V RATED CURRENT 1.3A RATED FREQUENCY 60Hz HIGH SIDE PRESSURE 280Psi LOW SIDE PRESSURE 130Psi REFRIGERANT R134a THERMOSTAT PLUG COMPRESSOR OVERLOAD PROTECTOR CAPACITOR... -
Page 8: Troubleshooting And Repairs
Rumbling Sounds When the compressor of a refrigerator stops running, a rumbling sound will be heard from the evaporator. This sound is caused by the flow of refrigerant in the evaporator tube. The refrigerant flows shortly after the compressor has stopped running. This sound, therefore, does not constitute a problem. - Page 9 Check the suction and exhaust pressure valves of the compressor to see whether they are normal. c) Pay attention to the rate at which the temperature decreases in both the refrigerator and freezer compartments. d) Check the environment to see whether it is suitable for the refrigerator.
- Page 10 Striking sounds from metal parts inside the compressor indicate that moving parts are loose. b) Listen to the gas flowing in the evaporator by opening the refrigerator door while the compressor is in operation. Normally, refrigerant circulating in the evaporator produces a gentle whistling accompanied by a sound similar to water flowing.
- Page 11 Poor Refrigerating Effect The “poor refrigerating effect “refers to when the refrigerator operates normally, but does not cool to the temperature indicated by the thermostat. Possible causes are discussed and analyzed below: 1) Refrigerant leaks Analysis of Trouble The refrigerant leaks will result in an insufficient refrigerating capacity. This will lead to lower gas suction and exhaust pressure as well as hotter exhaust gas.
- Page 12 5) Too thick frost layer formed on evaporator Analysis of trouble If a direct cooling refrigerator is to be used for a prolonged period, make sure that you defrost its evaporator regularly. If you fail to do so, the frost layer on the evaporator tubing will become thicker and thicker.
- Page 13 • No Refrigerating “No refrigerating” refers to a situation where the compressor runs normally, but the refrigerator’s temperature does not decrease. While servicing, careful attention will be required to find and correct the cause. The most common causes for this malfunction are analyzed below.
- Page 14 - Water accumulates and gradually clogs the narrow part of the capillary, - Frost to melt at the evaporator, there is no sound of gas flowing, - The gas suction pressure becomes a vacuum. Note that these phenomena will appear intermittently. In order to know whether the system is clogged with ice, heat the parts that are suspected with hot water.
- Page 15 Remedy It is quite difficult to differentiate this trouble from others because they have similar symptoms. When repairing, listen attentively for abnormal sounds coming from the compressor. Oftentimes, broken pieces of valve block strike against the cylinder. Check to see if the compressor casing is too hot. Secondly, measure the pressures at the high and low-pressure ports of the compressor with pressure gauges.
- Page 16 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 17 In case the compressor cannot be started, you must find out the origins of this trouble through systematic checkup, because probably there are many causes, including the electrical and mechanical parts. a) 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.
- Page 18 temperature sensor. Try to turn the adjusting stem of this value in the direction of the lower temperature graduation, and 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.
- Page 19 Compressor will not 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) Control system is probably out of order...
- Page 20 If the door has deformed or the door seal is not tightly sealed against the case body, repair them. e) Too much food is placed in the refrigerator, or is placed too densely, resulting in poor ventilation or poor conditions for temperature sensing hence no stoppage of the compressor.
- Page 21 Serious electric leakage Do not touch the case body of the refrigerator, its door handle or other metal parts with your hand. When you test the refrigerator with a test pencil, it will light up intensively.