Daikin CTXS07LVJU Service Manual page 108

SiUS121602E
7.10 Input Overcurrent Detection ..................................................................... 147
7.11 Four Way Valve Abnormality.................................................................... 148
7.12 Discharge Pipe Temperature Control....................................................... 150
7.13 High Pressure Control in Cooling ............................................................. 151
7.14 Compressor Sensor System Abnormality ................................................ 152
7.15 Position Sensor Abnormality .................................................................... 154
7.16 CT or Related Abnormality ....................................................................... 156
7.17 Thermistor or Related Abnormality (Outdoor Unit)................................... 158
7.18 Electrical Box Temperature Rise.............................................................. 160
7.19 Radiation Fin Temperature Rise .............................................................. 161
7.20 Output Overcurrent Detection .................................................................. 162
8. Check ...................................................................................................... 164
8.1 Thermistor Resistance Check .................................................................. 164
8.2 Indoor Fan Motor Connector Check ......................................................... 165
8.3 Hall IC Check ........................................................................................... 165
8.4 Power Supply Waveform Check............................................................... 166
8.5 Electronic Expansion Valve Check........................................................... 167
8.6 Four Way Valve Performance Check ....................................................... 168
8.7 Inverter Unit Refrigerant System Check................................................... 168
8.8 Inverter Analyzer Check ........................................................................... 169
8.9 Rotation Pulse Check on the Outdoor Unit PCB ...................................... 170
8.10 Installation Condition Check..................................................................... 171
8.11 Discharge Pressure Check....................................................................... 171
8.12 Outdoor Fan System Check ..................................................................... 172
8.13 Main Circuit Short Check.......................................................................... 172
8.14 Capacitor Voltage Check.......................................................................... 173
8.15 Power Module Check ............................................................................... 174
96 Service Diagnosis