Part 8 Troubleshooting - Daikin RMXS-L Series Service Manual

1. Troubleshooting with LED .......................................................................174
2. Service Diagnosis ................................................................................... 182
3. Error Codes and Description...................................................................194
4. Troubleshooting for CTXG, CTXS, FTXS, CDXS, FDXS,
5. Troubleshooting for FFQ Series..............................................................207
6. Troubleshooting for Branch Provider (BP) Unit.......................................219
7. Troubleshooting for Outdoor Unit............................................................ 226
172
1.1 Outdoor Unit ............................................................................................. 174
1.2 Branch Provider (BP) Unit ........................................................................ 179
1.3 Indoor Unit................................................................................................ 180
2.1 CTXG, CTXS, FTXS, CDXS, FDXS, FVXS Series .................................. 182
2.2 FFQ Series ............................................................................................... 188
FVXS Series............................................................................................ 196
4.1 Indoor Unit PCB Abnormality ................................................................... 196
4.2 Freeze-up Protection Control/Heating Peak-cut Control .......................... 198
4.3 Indoor Fan Motor or Related Abnormality ................................................ 199
4.4 Thermistor or Related Abnormality........................................................... 203
4.5 Front Panel Open/Close Fault.................................................................. 204
4.6 Check for CTXG, CTXS, FTXS, CDXS, FDXS, FVXS Series .................. 205
5.1 Indoor Unit PCB Abnormality ................................................................... 207
5.2 Drain Level Control System Abnormality.................................................. 208
5.3 Indoor Fan Motor (DC Motor) or Related Abnormality ............................. 209
5.4 Humidifier or Related Abnormality............................................................ 211
5.5 Thermistor or Related Abnormality........................................................... 212
5.6 Presence Sensor or Floor Sensor Abnormality ........................................ 213
5.7 Remote Controller Thermistor Abnormality .............................................. 214
5.8 Signal Transmission Error (Between Indoor Unit and
Remote Controller) ................................................................................... 215
5.9 Signal Transmission Error (Between MAIN Remote Controller and
SUB Remote Controller)........................................................................... 216
5.10 Mismatching of Indoor Unit and Outdoor Unit .......................................... 217
5.11 Check for FFQ Series............................................................................... 218
6.1 Electronic Expansion Valve Abnormality.................................................. 219
6.2 Branch Provider (BP) Unit PCB Abnormality............................................ 220
6.3 Branch Provider (BP) Liquid or Gas Pipe Thermistor Abnormality........... 221
6.4 Signal transmission Error between Indoor Unit and
Branch Provider (BP) Unit ........................................................................ 222
6.5 Transmission Error between Outdoor Unit and
Branch Provider (BP) Unit ........................................................................ 224
6.6 Check for Branch Provider (BP) Unit........................................................ 225
7.1 Outdoor Unit PCB Abnormality................................................................. 226
Troubleshooting
SiUS181631EA
Part 8
Troubleshooting