SiUS091628EA
Service Diagnosis
54
5.1 Thermistor Resistance Check .................................................................. 100
5.2 Indoor Fan Motor Connector Output Check ............................................. 101
5.3 Power Supply Waveforms Check ............................................................. 101
5.4 Electronic Expansion Valve Check........................................................... 102
5.5 Four Way Valve Performance Check ....................................................... 103
5.6 Inverter Unit Refrigerant System Check................................................... 103
5.7 Inverter Analyzer Check ........................................................................... 104
5.8 Rotation Pulse Check on the Outdoor Unit PCB ...................................... 106
5.9 Installation Condition Check..................................................................... 107
5.10 Discharge Pressure Check....................................................................... 107
5.11 Outdoor Fan System Check ..................................................................... 108
5.12 Main Circuit Short Check.......................................................................... 108
5.13 Power Module Check ............................................................................... 110
Summary of Contents for FFQ09Q2VJUFFQ12Q2VJUFFQ15Q2VJUFFQ18Q2VJURX09QMVJURX12QMVJURX15QMVJURX18QMVJU
Page 12: ...SiUS091628EA 1 List of Functions Part 1 List of Functions 1 Functions 2...
Page 14: ...SiUS091628EA 3 Specifications Part 2 Specifications 1 Specifications 4...
Page 120: ...Check SiUS091628EA 109 Service Diagnosis 15 18 class R20701 1 2 3 4 Multimeter...
Page 122: ...Check SiUS091628EA 111 Service Diagnosis 15 18 class R20704 W V U DC_P1 DC_N1...