LG MULTI V WATER IV ARWN080LAS4

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Only for training and service purposes
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1. The phenomena from main component failure .............................. 45
2.
Checking Method for Key Components ..........................................46
2.1 Compressor ........................................................................................46
2.2 Electronic Expansion Valve...............................................................47
2.3 Phase Bridge Diode Checking Method ............................................50
2.4 Inverter IPM/IGBT Checking Method.......................................................51
2.5 Pressure Sensor(High/Low Pressure Sensor) ......................................52
2.6 Outdoor Fan .............................................................................................52
2.7 Solenoid Valve .........................................................................................53
2.8 Reverse Valve...........................................................................................54
2.9 Temperature Sensor ................................................................................54
2.10 Others .....................................................................................................55
3. Self-diagnosis function .................................................................56
Trouble shooting guide