SiEBE18-526
240 Troubleshooting
7.2 Actuation of High Pressure Switch .......................................................295
7.3 Actuation of Low Pressure Switch........................................................296
7.4 Compressor Motor Lock .......................................................................297
7.5 Malfunction of Outdoor Unit Fan Motor ................................................298
7.6 Malfunction of Moving Part of Electronic Expansion Valve ..................299
7.7 Abnormal Discharge Pipe Temperature ...............................................300
7.8 Malfunction of Thermistor for Outdoor Air (R1T) ..................................301
7.9 Malfunction of Discharge Pipe Thermistor (R3T) .................................302
7.10 Malfunction of Thermistor (R2T) for Suction Pipe ................................303
7.11 Malfunction of Thermistor (R4T) for Outdoor Unit Heat Exchanger .....304
7.12 Malfunction of Receiver Gas Pipe Thermistor (R5T)............................305
7.13 Outdoor Unit: Malfunction of High Pressure Sensor ............................306
7.14 Malfunction of Low Pressure Sensor....................................................307
7.15 Malfunction of Inverter Radiating Fin Temperature Rise......................308
7.16 Inverter Compressor Abnormal ............................................................309
7.17 Inverter Current Abnormal....................................................................310
7.18 Inverter Start up Error...........................................................................311
7.19 Malfunction of Transmission between Inverter and Control PCB.........312
7.20 Malfunction of Inverter Radiating Fin Temperature Rise Sensor .........314
7.21 Faulty Combination of Inverter and Fan Driver ....................................315
7.22 Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion
Valve Failure ........................................................................................316
7.23 Power Supply Insufficient or Instantaneous Failure .............................317
7.24 Check Operation not Executed ............................................................319
7.25 Malfunction in other Indoor Unit or other BP Unit.................................320
7.26 Mismatching of Indoor Unit, BP Unit and Outdoor Unit ........................321
7.27 Refrigerant System not Set, Incompatible Wiring/Piping......................322
7.28 Malfunction of System, Refrigerant System Address Undefined..........323
8. Check ..................................................................................................324
9. Thermistor Resistance / Temperature Characteristics........................326
10.Pressure Sensor .................................................................................328
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