Haier BD-478A service manual 12.5, Maintenance Service And Trouble Shooting

condenser, fan, compressor and temperature controller. Wipe clean and avoid damaging pipes and electrical parts.

(2)Switch on power and check the freezer operation. If not normal, check and repair.

(3)Check all brazing connections. If the black paint has peeled off and there is rust, please grind the surface slightly using No.0 grinding paper. When the rust is removed, wipe it with clean towel. Then take a brush and dip in alcoholic paint and paint the welded points and pipes.

(4)Check the casters and change if there is any damage.

(5)Check the power cord, if there is any wear or damage, please change.

(6)Take an avometer and check if the resistance of ground resistor is normal.

(7)Check the insulation by using, if it is abnormal; please check the circuit and various components.

(8)If the trademark is damaged or lost, please change with new Haier trademark.

(9)Wipe the inside and outside of freezer clean. If freezer will be off for a long time, wipe water away, and put the freezer into a plastic bag and leave it at a dry warehouse with good air convection and a level floor.

MAINTENANCE SERVICE AND TROUBLE SHOOTING

Maintenance Service and Trouble Shooting

12.5

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