Daikin CTXG09QVJUW Service Manual page 5

SiUS121632EA
2. Troubleshooting with LED .......................................................................118
3. Service Diagnosis ................................................................................... 121
4. Code Indication on Remote Controller .................................................... 133
5. Troubleshooting for CTXG, CTXS, FTXS, CDXS, FDXS,
6. Troubleshooting for FFQ Series..............................................................147
7. Troubleshooting for Outdoor Unit............................................................ 160
Table of Contents
2.1 Indoor Unit................................................................................................ 118
2.2 Outdoor Unit ............................................................................................. 120
3.1 CTXG, CTXS, FTXS, CDXS, FDXS, FVXS Series .................................. 121
3.2 FFQ Series ............................................................................................... 127
4.1 CTXG, CTXS, FTXS, CDXS, FDXS, FVXS Series .................................. 133
4.2 FFQ Series ............................................................................................... 133
4.3 Outdoor Unit ............................................................................................. 134
FVXS Series............................................................................................ 135
5.1 Indoor Unit PCB Abnormality ................................................................... 135
5.2 Freeze-up Protection Control/Heating Peak-cut Control .......................... 137
5.3 Indoor Fan Motor or Related Abnormality ................................................ 138
5.4 Thermistor or Related Abnormality........................................................... 142
5.5 Front Panel Open/Close Fault.................................................................. 143
5.6 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)........ 144
5.7 Mismatching of Indoor Unit and Outdoor Unit .......................................... 146
6.1 Indoor Unit PCB Abnormality ................................................................... 147
6.2 Drain Level Control System Abnormality.................................................. 148
6.3 Indoor Fan Motor (DC Motor) or Related Abnormality ............................. 149
6.4 Humidifier or Related Abnormality............................................................ 151
6.5 Thermistor or Related Abnormality........................................................... 152
6.6 Presence Sensor or Floor Sensor Abnormality ........................................ 153
6.7 Remote Controller Thermistor Abnormality .............................................. 154
6.8 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)........ 155
6.9 Signal Transmission Error
(Between Indoor Unit and Remote Controller) ......................................... 157
6.10 Signal Transmission Error
(Between MAIN Remote Controller and SUB Remote Controller) ........... 158
6.11 Mismatching of Indoor Unit and Outdoor Unit .......................................... 159
7.1 Refrigerant Shortage ................................................................................ 160
7.2 Low-voltage Detection or Over-voltage Detection.................................... 162
7.3 Wiring Error Check Unexecuted............................................................... 164
7.4 Unspecified Voltage (Between Indoor Unit and Outdoor Unit)/
Anti-icing Control in Other Rooms............................................................ 165
7.5 Anti-icing Control for Indoor Unit .............................................................. 166
7.6 Outdoor Unit PCB Abnormality................................................................. 168
7.7 OL Activation (Compressor Overload) ..................................................... 169
7.8 Compressor Lock ..................................................................................... 171
7.9 DC Fan Lock ............................................................................................ 172
7.10 Input Overcurrent Detection ..................................................................... 173
7.11 Four Way Valve Abnormality.................................................................... 174
7.12 Discharge Pipe Temperature Control....................................................... 176
7.13 High Pressure Control in Cooling ............................................................. 177
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