SiUS071735EB
55 Service Diagnosis
5. Check ......................................................................................................105
5.1 Thermistor Resistance Check .................................................................. 105
5.2 Indoor Fan Motor Connector Check ......................................................... 106
5.3 Power Supply Waveforms Check............................................................. 106
5.4 Electronic Expansion Valve Check........................................................... 107
5.5 Four Way Valve Performance Check ....................................................... 108
5.6 Inverter Unit Refrigerant System Check................................................... 108
5.7 Inverter Analyzer Check ........................................................................... 109
5.8 Outdoor Fan Motor Check........................................................................ 111
5.9 Installation Condition Check..................................................................... 112
5.10 Discharge Pressure Check....................................................................... 112
5.11 Outdoor Fan System Check..................................................................... 113
5.12 Main Circuit Short Check.......................................................................... 113
5.13 Power Module Check ............................................................................... 115
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