Haier BD-478A service manual Repair equipment Requirements, Service procedure

several minutes later it starts again and stops automatically again. With in cycles like this and the motor, or starter, and thermal protection unit will burn up after a long time. The main reason is: the motor coil is shorted at some parts.

Second, the freezer operates a certain time after starting, but it will stop automatically before the temperature reduces before the desired temperature is reached. After several minutes, it will start again, and the electricity consumption increases bad. The reason is that the insulation around the motor windings bad.

12.3Service and technical requirements of a R134a freezer 12.3.1 Refrigeration equipment requirements

The compressor, condenser, evaporator, drying filter must be special for R134a freezer and not be confused.

12.3.2 Repair equipment Requirements

(1)The evacuation and fill machine is special only for R134a use.

(2)Other equipment (such as pressure gauge) has no special requirements, but once it is used for R134a freezer, it can be no longer for other use.

MAINTENANCE SERVICE AND TROUBLE SHOOTING Maintenance Service and Trouble Shooting

12.3.3 Service procedure

２９

PDF created with pdfFactory trial version www.pdffactory.com