Part 6 Service Diagnosis - Daikin CTXS07LVJU Service Manual

SiUS121602E
1. General Problem Symptoms and Check Items .........................................97
2. Troubleshooting with LED .........................................................................98
3. Service Diagnosis ................................................................................... 100
4. Code Indication on Remote Controller .................................................... 112
5. Troubleshooting for CTXS, FTXS, CDXS, FDXS, FVXS Series ............. 114
6. Troubleshooting for FFQ Series..............................................................125
7. Troubleshooting for Outdoor Unit............................................................ 134
Service Diagnosis
Service Diagnosis
2.1 Indoor Unit.................................................................................................. 98
2.2 Outdoor Unit ............................................................................................... 99
3.1 CTXS, FTXS, CDXS, FDXS, FVXS Series .............................................. 100
3.2 FFQ Series ............................................................................................... 106
4.1 CTXS, FTXS, CDXS, FDXS, FVXS Series .............................................. 112
4.2 FFQ Series ............................................................................................... 112
4.3 Outdoor Unit ............................................................................................. 113
5.1 Indoor Unit PCB Abnormality ................................................................... 114
5.2 Freeze-up Protection Control/Heating Peak-cut Control .......................... 116
5.3 Fan Motor or Related Abnormality ........................................................... 117
5.4 Thermistor or Related Abnormality........................................................... 121
5.5 Signal Transmission Error (Between Indoor Unit and Outdoor Unit)........ 122
5.6 Unspecified Voltage (Between Indoor Unit and Outdoor Unit) ................. 124
6.1 Indoor Unit PCB Abnormality ................................................................... 125
6.2 Drain Level Control System Abnormality.................................................. 126
6.3 Fan Motor (AC Motor) or Related Abnormality......................................... 127
6.4 Drain System Abnormality........................................................................ 128
6.5 Thermistor or Related Abnormality........................................................... 129
6.6 Remote Controller Thermistor Abnormality .............................................. 130
6.7 Signal Transmission Error
(Between Indoor Unit and Remote Controller) ......................................... 131
6.8 Signal Transmission Error
(Between MAIN Remote Controller and SUB Remote Controller) ........... 132
6.9 Field Setting Abnormality ......................................................................... 133
7.1 Refrigerant Shortage ................................................................................ 134
7.2 Low-voltage Detection or Over-voltage Detection.................................... 136
7.3 Wiring Error Check Unexecuted............................................................... 138
7.4 Unspecified Voltage (Between Indoor Unit and Outdoor Unit)/
Anti-icing Control in Other Rooms............................................................ 139
7.5 Anti-icing Control for Indoor Unit .............................................................. 140
7.6 Outdoor Unit PCB Abnormality................................................................. 142
7.7 OL Activation (Compressor Overload) ..................................................... 143
7.8 Compressor Lock ..................................................................................... 145
7.9 DC Fan Lock ............................................................................................ 146
Part 6
95