Daikin CTXG09QVJUW Service Manual page 129

SiUS121630EA
8. Check ...................................................................................................... 191
Service Diagnosis
7.6 Outdoor Unit PCB Abnormality................................................................. 169
7.7 OL Activation (Compressor Overload) ..................................................... 170
7.8 Compressor Lock ..................................................................................... 172
7.9 DC Fan Lock ............................................................................................ 173
7.10 Input Overcurrent Detection ..................................................................... 174
7.11 Four Way Valve Abnormality.................................................................... 175
7.12 Discharge Pipe Temperature Control....................................................... 177
7.13 High Pressure Control in Cooling ............................................................. 178
7.14 Compressor Sensor System Abnormality ................................................ 179
7.15 Position Sensor Abnormality .................................................................... 181
7.16 CT or Related Abnormality ....................................................................... 183
7.17 Thermistor or Related Abnormality (Outdoor Unit)................................... 185
7.18 Electrical Box Temperature Rise.............................................................. 187
7.19 Radiation Fin Temperature Rise .............................................................. 188
7.20 Output Overcurrent Detection .................................................................. 189
8.1 Thermistor Resistance Check .................................................................. 191
8.2 Indoor Fan Motor Connector Check ......................................................... 192
8.3 Hall IC Check ........................................................................................... 192
8.4 Power Supply Waveform Check............................................................... 193
8.5 Electronic Expansion Valve Check........................................................... 194
8.6 Four Way Valve Performance Check ....................................................... 195
8.7 Inverter Unit Refrigerant System Check................................................... 195
8.8 Inverter Analyzer Check ........................................................................... 196
8.9 Rotation Pulse Check on the Outdoor Unit PCB ...................................... 197
8.10 Installation Condition Check..................................................................... 198
8.11 Discharge Pressure Check....................................................................... 198
8.12 Outdoor Fan System Check ..................................................................... 199
8.13 Main Circuit Short Check.......................................................................... 199
8.14 Capacitor Voltage Check.......................................................................... 200
8.15 Power Module Check ............................................................................... 201
117