LG ARUN Series Service Manual page 60

Trouble shooting guide
1. The phenomena from main component failure ..............................61
2. Checking Method for Key Components
2.1 Compressor ........................................................................................62
2.2 Fan Motor ............................................................................................63
2.3 Electronic Expansion Valve...............................................................64
2.4 Phase Bridge Diode Checking Method.............................................67
2.5 Inverter IPM Checking Method ................................................................68
2.6 Fan IPM Checking Method .......................................................................69
2.7 UW1 chassis 2Fan ....................................................................................69
2.8 Other ..........................................................................................................71
3. Self-diagnosis function .................................................................72
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