Daikin 2MXS-N Series Service Manual page 110

SiUS121502E
7.10 Input Overcurrent Detection ..................................................................... 149
7.11 Four Way Valve Abnormality.................................................................... 150
7.12 Discharge Pipe Temperature Control....................................................... 152
7.13 High Pressure Control in Cooling ............................................................. 153
7.14 Compressor Sensor System Abnormality ................................................ 154
7.15 Position Sensor Abnormality .................................................................... 156
7.16 CT or Related Abnormality ....................................................................... 158
7.17 Thermistor or Related Abnormality (Outdoor Unit)................................... 160
7.18 Electrical Box Temperature Rise.............................................................. 162
7.19 Radiation Fin Temperature Rise .............................................................. 163
7.20 Output Overcurrent Detection .................................................................. 164
8. Check ...................................................................................................... 166
8.1 Thermistor Resistance Check .................................................................. 166
8.2 Indoor Fan Motor Connector Check ......................................................... 167
8.3 Hall IC Check ........................................................................................... 167
8.4 Power Supply Waveform Check............................................................... 168
8.5 Electronic Expansion Valve Check........................................................... 169
8.6 Four Way Valve Performance Check ....................................................... 170
8.7 Inverter Unit Refrigerant System Check................................................... 170
8.8 Inverter Analyzer Check ........................................................................... 171
8.9 Rotation Pulse Check on the Outdoor Unit PCB ...................................... 172
8.10 Installation Condition Check..................................................................... 173
8.11 Discharge Pressure Check....................................................................... 173
8.12 Outdoor Fan System Check ..................................................................... 174
8.13 Main Circuit Short Check.......................................................................... 174
8.14 Capacitor Voltage Check.......................................................................... 175
8.15 Power Module Check ............................................................................... 176
98 Service Diagnosis