Haier RF-8888-193 Service Manual Download Page 3

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SPECIFICATION

MODEL HBF05EABB

Capacity (gallons)

47.5

Power supply V/Hz

115V / 60Hz

Rated power input W

100

Power consumption k*W*h / 24hrs 0.60
Net weight (lbs)

83.7

Gross weight (lbs)

93.6

Unit dimensions (D x W x H) in

23.6 x 23.6 x (33 x 3.4)

Package dimensions (D x W x H) in

26.3 x 25.9 x 36

Container quantity 40’

146

Container quantity 40’ HC

146

Summary of Contents for RF-8888-193

Page 1: ...1 HAIER REFRIGERATOR Service Manual PART RF 8888 193 HAIER AMERICA TRADING LLC www haieramerica com ...

Page 2: ...2 TABLE OF CONTENTS Specification Safety precautions Refrigerating Principle Principle Of Electrical Control Troubleshooting And Repairs 3 4 6 7 8 ...

Page 3: ... Hz 115V 60Hz Rated power input W 100 Power consumption k W h 24hrs 0 60 Net weight lbs 83 7 Gross weight lbs 93 6 Unit dimensions D x W x H in 23 6 x 23 6 x 33 x 3 4 Package dimensions D x W x H in 26 3 x 25 9 x 36 Container quantity 40 146 Container quantity 40 HC 146 ...

Page 4: ...his product requires service we strongly recommend that a certified technician perform the service 6 Do not use any electrical service or any sharp instrument to defrost your appliance 7 If your old appliance is discarded we recommend that you remove the door and leave the shelves in place This will reduce the possibility of danger children 8 This appliance should not be recessed or built in an en...

Page 5: ... unless there are two 2 safety mechanisms in the pressure system a One of the CO2 regulators The regulator supplied with this unit is inclusive of such a safety mechanism b One at on the product container coupler or in the pressure gas line The keg coupler supplied with this unit is inclusive of such a safety mechanism 8 Always ventilate area after any leakage of CO2 9 If it becomes difficult to b...

Page 6: ... 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 proces...

Page 7: ...ECTRIC CONTROL HBF05NABB RATED VOLTAGE 115V RATED CURRENT 1 3A RATED FREQUENCY 60Hz HIGH SIDE PRESSURE 280Psi LOW SIDE PRESSURE 130Psi REFRIGERANT R134a THERMOSTAT OVERLOAD PROTECTOR PLUG COMPRESSOR C PTC RUN CAPACITOR ...

Page 8: ...rant flows shortly after the compressor has stopped running This sound therefore does not constitute a problem b Clicking Noises Refrigerators often make clicking noises This is also normal It is the result of the intake or release of the armature of a current dead weight start relay when the compressor is started The compressor motor makes a clicking sound while it is running This sound is faint ...

Page 9: ...ience in servicing is very important for troubleshooting Well experienced service technicians can correctly identify and solve problems based on their comprehensive analysis of the characteristics of the particular problems as well as the operating conditions for various kinds of refrigerators Three Essential Things To Note During A Checkup Look a Check the tubing of the refrigerating system for c...

Page 10: ...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 properly If the condenser is not hot then the refrigerant is leaking If the condenser is hot for only a few minutes and then cools down the filter and capillary are clogged If hot air is blown out of the forced air cooling condenser the system ...

Page 11: ...nitrogen before refill with refrigerant 2 Too much refrigerant in the system Analysis of Trouble a If amount of refrigerant in the system exceeds its nominal capacity the excess refrigerant will displace the evaporator This will reduce the heat dissipation area and decrease the refrigerating efficiency Malfunctions caused by excess refrigerant are gas suction and exhaust pressures increase condens...

Page 12: ...of its causing is too high cut the discharge port open and operate the compressor Inspect to see if there is pressure at the discharge port with your finger In a normal compressor it is difficult block the discharge port with your finger 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 ...

Page 13: ...age of refrigerant are i The compressor can be started easily if there is no damage to the compressor parts ii The operating current becomes low iii The gas suction pressure increases iv The discharge pressure decreases v The temperature of the gas discharge tube drops vi There is no sound of gas eruption from the liquid in the evaporator and vii No gas gushes out of the process tube when cut afte...

Page 14: ...d clog the capillary inlet Flow of refrigerant stops when the filter screen is completely clogged by dirt This condition has the same symptoms as when the refrigerating system is clogged by ice However when you heat the clogged area with a hot towel there is no reaction After rejecting the possibility of ice clogging it can be concluded that the clogging is due to dirt Remedy Dismantle the system ...

Page 15: ...igerating effect may occur if excessive refrigerant has been charged into the system Excess refrigerant will occupy additional space in the evaporator This will reduce its heat dissipating area and the phenomenon of liquid striking may occur Condensation may occur on the gas return tube and the gas discharge pressure will rise When it reaches the threshold value the protective relay will actuate a...

Page 16: ...d 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...

Page 17: ...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 iii Check the relay contacts and plugs to see if they are perfect and work reliably Poor contact may cause the...

Page 18: ...sure the resistance of each phase with an avometer If short circuit occurs or the resistance of a particular phase is low this means that there is no short circuit in the windings and or between turns and that insulation layers are damaged or deteriorated Another instrument that can also be used in this inspection is a megameter If the insulation resistance is lower than 2 MΩ this means that the i...

Page 19: ... two situations i Control system is probably out of order ii The control system works normally but there are problems in the refrigerating system or other parts a Temperature is set improperly i 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 will not st...

Page 20: ... When the heat insulation layer inside the case body deteriorates or the door seal does not closely touch the doorframe the temperature in the refrigerator will rise and makes the compressor run continuously Remedy Check the heat insulation layer for damaged parts Repair it if damaged to improve its heat insulation property If the door has deformed or the door seal is not tightly sealed against th...

Page 21: ...laced 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 compresso...

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