SiBE121123_A
135 Service Diagnosis
7.10 Discharge Pipe Temperature Control...................................................193
7.11 High Pressure Control in Cooling .........................................................194
7.12 Compressor Sensor System Abnormality ............................................195
7.13 Position Sensor Abnormality ................................................................196
7.14 DC Voltage / Current Sensor Abnormality............................................198
7.15 Thermistor or Related Abnormality (Outdoor Unit)...............................199
7.16 Electrical Box Temperature Rise..........................................................201
7.17 Radiation Fin Temperature Rise ..........................................................202
7.18 Output Overcurrent Detection ..............................................................204
8. Check ..................................................................................................206
8.1 Thermistor Resistance Check ..............................................................206
8.2 Fan Motor Connector Output Check ....................................................207
8.3 Hall IC Check .......................................................................................208
8.4 Indoor Electronic Expansion Valve Coil Check ....................................208
8.5 Power Supply Waveforms Check.........................................................209
8.6 Outdoor Electronic Expansion Valve Check.........................................210
8.7 Four Way Valve Performance Check ...................................................211
8.8 Inverter Unit Refrigerant System Check...............................................211
8.9 Inverter Analyzer Check .......................................................................212
8.10 Rotating Pulse Input on the Outdoor Unit PCB Check .........................214
8.11 Installation Condition Check.................................................................215
8.12 Discharge Pressure Check...................................................................215
8.13 Outdoor Unit Fan System Check..........................................................216
8.14 Main Circuit Short Check......................................................................216
8.15 Power Module Check ...........................................................................217
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