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Copyright ©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Replacement Procedure for Compressor
1. Replacement Procedure for Compressor
1. Remove the sound proof covering the faulty com-
pressor, and disconnect the power
2. Disconnect the brazing sections of suction pipe and
discharge pipe by using brazing torch after the refrig-
erant has been pumped out or collected completely.
3. Remove three nuts at cushion rubber section to
take out the faulty compressor outside the unit.
<Figure 1>
4. Install the new compressor in the unit.(Be sure to
insert the cushion rubbers before tightening the
fixing nut of compressor.)
5. Remove the rubber caps put on the suction and
discharge pipe of the new compressor to release
the sealing nitrogen gas.
6. Braze the suction and discharge pipe with brazing
torch to the compressor.
7. Conduct air tight test to check the piping system is
free from leakage.
8. Connect power cable to the terminal board of com-
pressor and cover the compressor with sound
proof. <Figure 3>
9. Conduct vacuum.
10. After completion of vacuum, open the service
valves. If recovery unit is used, charge refrigerant.
Suction pipe
Discharge pipe
<Figure 1>
<Figure 2>
When inserting the sound proof,
be sure to insert counter-clockwise.
