ESIE09-08B
118 Troubleshooting
3.31 “J7” Outdoor Unit: Malfunction of Thermistor (R7T) for Outdoor Unit
Liquid Pipe............................................................................................172
3.32 “J9” Outdoor Unit: Malfunction of Thermistor (R4T) for Subcooling
Heat Exchanger Gas Pipe....................................................................173
3.33 “JA” Outdoor Unit: Malfunction of High Pressure Sensor .....................174
3.34 “JA” Indoor Unit: Malfunction of High Pressure Sensor........................175
3.35 “JC” Outdoor Unit: Malfunction of Low Pressure Sensor...........
...........176
3.36 “JC” Indoor Unit: Malfunction of Low Pressure Sensor.........................177
3.37 “L1” Outdoor Unit: Malfunction of PC Board..........................................178
3.38 “L1” Indoor Unit: Malfunction of PC Board.............................................179
3.39 “L4” Outdoor Unit: Malfunction of Inverter Radiating Fin Temperature
Rise ......................................................................................................180
3.40 “L4” Indoor Unit: Malfunction of Inverter Radiating Fin Temperature
Rise (R8T) ............................................................................................181
3.41 “L5” Outdoor Unit: Inverter Compressor Abnormal - R-410A ...............182
3.42 “L5” Indoor Unit: Inverter Compressor Abnormal - R-134a...................183
3.43 “L8” Outdoor Unit: Inverter Current Abnormal ......................................184
3.44 “L8” Indoor Unit: Inverter Current Abnormal .........................................185
3.45 “L9” Outdoor Unit: Inverter Start up Error .............................................186
3.46 “L9” Indoor Unit: Inverter Start up Error................................................187
3.47 “LC” Outdoor Unit: Malfunction of Transmission between Inverter and
Control PC Board .................................................................................188
3.48 “LC” Indoor Unit: Malfunction of Transmission between Inverter and
Control PC Board .................................................................................189
3.49 “LH” Indoor Unit: Converter Error..........................................................190
3.50 “
P1
” Outdoor Unit: High Voltage of Capacitor in Main Inverter Circuit .... 191
3.51 “P1” Indoor Unit: High Voltage of Capacitor in Main Inverter Circuit .....192
3.52 “PJ” Indoor Unit: Faulty Combination of PCB .......................................193
3.53 “U0” Low Pressure Drop Due to Refrigerant Shortage or Electronic
Expansion Valve Failure.......................................................................194
3.54 “U2” Power Supply Insufficient or Instantaneous Failure......................196
3.55 “U2” Power Supply Insufficient or Instantaneous Failure......................198
3.56 “U4” Malfunction of Transmission between Indoor Unit and Outdoor
Unit .......................................................................................................200
3.57 “U4” Malfunction of Transmission Indoor Unit.......................................202
3.58 “U5” Malfunction of Transmission between Remote Control and
Indoor Unit............................................................................................203
3.59 “U7” Indoor Unit: Malfunction of Transmission Outdoor Unit ................204
3.60 “U8” Malfunction of Transmission between Main and Sub Remote
Controls ................................................................................................205
3.61 “UA” Communication Error between Outdoor Unit and Indoor Unit ......206
3.62 “UF” System is not Set yet ....................................................................207
3.63 “
UH
” Malfunction of System, Refrigerant System Address Undefined ..... 208
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