Haier BD-478A service manual

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greater than 45°, so that the sliding door could not move out from its guiding slot and other accident will not happen.

(2)The clearance between freezer and other objects should be more than 30 cm for ventilation and heat radiation.

(3)Please don’t leave the freezer at humid or corrosive gas area.

(4)Freezer should be placed at a place with proper ventilation, away from heat source, and avoiding direct sunlight.

At the first application, please wait some time for operation (in summer 6 hours, in winter, 4 hours), when the temperature inside the freezer has

(5)reached to -15and below, then you can put food in. If food is put in too early, it may get damaged, as the temperature is still high.

(6)Do not over pack refrigerator.

(7)Place food by reasonable sorts, try to power open door frequency and time so as to reduce the loss of refrigeration and reduce consumption.

(8)There are four wheels at the bottom of freezer, but it can only be used for short distance and on level road movement. If it is required to move

frequently, please put the freezer onto a strong trolley base.

MAINTENANCE SERVICE AND TROUBLE SHOOTING Maintenance Service and Trouble Shooting

(9)As this type freezer is often used outdoors, please make sure that the plug is firm, so that unnecessary loss caused by infirm plug can be

avoided.

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Contents BD-478A Contents Product Code Illumination and Series Introduction First letter of Freezer in Chinese spellingFeatures FeaturesSpecifications BD-388A BD-478ASafety Precautions Safety Precautions 1420*715*810 1690*715*810 Net Dimension1420*715*1470 1690*715*1470 Installation and Accessory Parts ·Proper Air CirculationElectrical Requirement Installation and Accessory Parts Defrosting and Draining The Freezer Food Storage BasketSystem Flow Chart Adjustable temperature dial Function ScheduleMaintenance Service and Trouble Shooting Brief description of principle about BD-318A/428AServicing freezer Reasons of electricity leakage of freezerMaintenance Service and Trouble Shooting Maintenance Service and Trouble Shooting Troubleshooting by sounds Troubleshooting by touch System noise repair Poor freezing effect analysis and solutions How to handle the seal bar for poor sealing Why freezer cannot be used at low temperature environment How to know there is problem with compressor MotorPage Page Procedure for fan change Procedure for temperature controller changeCommon freezer problems Operation of freezer is not normal Repair equipment Requirements Service procedureEvacuation and fill machine is special only for R134a use Changing procedure of R134a compressor Compressor installation and brazing procedures Application and maintenance of freezer Product charactersPage Safety notice of product MaintenanceStandard procedure of maintenance 12.5 Freezer repair tool and equipment It is not allowed to fill R134a by R12 filling equipmentProcedure for filling equipment ⑧ Switch off motorCompressor Freezer noise sourcesFilling Resonance sound of compressor components How is the sound of water flowing generated? Gas flowing soundWhy the freezer’s noise increases after using Why freezer noise changes greater at night? Why freezer’s noise increases after stop use for sometime?How to reduce freezer’s noise? Sometime?Why freezer noise measured at home is incorrect? What are the national stipulations for freezer Noise?Page Why the noises of it type freezers are different? AnswerHow to determine that the sound is noise or Normal? Noise test There are stipulations in Items 6.5.7.1 and 6.3.6.1.of GB/TMaintenance Service and Trouble Shooting 12.8Measuring technology of freezer performance parameter Temperature with load Test method and instrumentGround resistor Maintenance Service and Trouble Shooting Maintenance Service and Trouble Shooting Maintenance Service and Trouble Shooting Exploded View List of Parts QTY BD-388A/478A 392% 600% Lamp switch BD-388A/478A 010% 020%