Table of Contents
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207
3.28 Remote Sensor Abnormality .................................................................... 274
3.29 Infrared Presence/Floor Sensor Error ...................................................... 275
3.30 Remote Controller Thermistor Abnormality .............................................. 280
3.31 Outdoor Unit Main PCB Abnormality........................................................ 281
3.32 Detection of Ground Leakage by Leak Detection Circuit ......................... 282
3.33 Missing of Ground Leakage Detection Core ............................................ 283
3.34 Activation of High Pressure Switch .......................................................... 284
3.35 Activation of Low Pressure Sensor .......................................................... 286
3.36 Compressor Motor Lock ........................................................................... 287
3.37 Compressor Damage Alarm..................................................................... 289
3.38 Outdoor Fan Motor Abnormality ............................................................... 291
3.39 Electronic Expansion Valve Coil Abnormality........................................... 294
3.40 Discharge Pipe Temperature Abnormality ............................................... 295
3.41 Wet Alarm................................................................................................. 297
3.42 Refrigerant Overcharged.......................................................................... 299
PCB)......................................................................................................... 300
3.44 Outdoor Fan PCB Abnormality................................................................. 301
3.45 Thermistor Abnormality ............................................................................ 302
3.46 High Pressure Sensor Abnormality .......................................................... 304
3.47 Low Pressure Sensor Abnormality ........................................................... 305
3.48 Inverter PCB Abnormality......................................................................... 306
3.49 Momentary Power Failure during Test Operation .................................... 308
3.50 Inverter Radiation Fin Temperature Rise Abnormality ............................. 309
3.51 Compressor Instantaneous Overcurrent .................................................. 311
3.52 Compressor Overcurrent.......................................................................... 313
3.53 Compressor Startup Abnormality ............................................................. 315
3.55 Power Supply Voltage Imbalance ............................................................ 319
3.56 Inverter Radiation Fin Temperature Abnormality ..................................... 321
Combination of PCB Abnormality............................................................. 323
3.58 Refrigerant Shortage ................................................................................ 324
3.59 Reverse Phase, Open Phase................................................................... 325
3.60 Power Supply Insufficient or Instantaneous Abnormality ......................... 326
3.61 Check Operation Not Executed................................................................ 328
Phase in Power Supply Wiring ................................................................. 329
3.63 Transmission Error between Remote Controller and Indoor Unit............. 332
3.64 Transmission Error between Outdoor Units ............................................. 333
3.65 Transmission Error between Main and Sub Remote Controllers ............. 339
Same System ........................................................................................... 340
Remote Controller .................................................................................... 341
3.68 Incorrect Gas Furnace Connecting Number............................................. 346
3.69 Incorrect Electric Heater Capacity Setting................................................ 347
3.70 Address Duplication of Centralized Controller.......................................... 348
SiUS342004EB
Part 6 Service Diagnosis
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Chapters
Table of Contents
Troubleshooting
