Si34-603
Table of Contents iii
3.12 “CA” Indoor Unit: Malfunction of Thermistor for Discharge Air...............144
3.13 “CJ” Indoor Unit: Malfunction of Thermostat Sensor
in Remote Controller ............................................................................145
3.14 “E1” Outdoor Unit: PC Board Defect ......................................................146
3.15 “E3” Outdoor Unit: Actuation of High Pressure Switch ..........................147
3.16 “E4” Outdoor Unit: Actuation of Low Pressure Sensor ..........................149
3.17 “E5”Compressor Motor Lock ................................................................151
3.18 “E7”Malfunction of Outdoor Unit Fan Motor..........................................152
3.19 “E9” Outdoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E, Y3E)...............................................153
3.20 “F3” Outdoor Unit: Abnormal Discharge Pipe Temperature ..................155
3.21 “F6”Outdoor Unit: Refrigerant Overcharged.........................................156
3.22 “H9” Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air.....157
3.23 “J3” Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R2T) ....158
3.24 “J5” Outdoor Unit: Malfunction of Thermistor (R3T, R5T) for
Suction Pipe 1, 2 ..................................................................................159
3.25 “J6” Outdoor Unit: Malfunction of Thermistor (R4T) for
Outdoor Unit Heat Exchanger ..............................................................160
3.26 “J7” Outdoor Unit: Malfunction of Thermistor (R7T) for
Outdoor Unit Liquid Pipe ......................................................................161
3.27 “J9” Outdoor Unit: Malfunction of Subcooling Heat Exchanger
Gas Pipe Thermistor (R6T) ..................................................................162
3.28 “JA” Outdoor Unit: Malfunction of High Pressure Sensor......................163
3.29 “JC” Outdoor Unit: Malfunction of Low Pressure Sensor.......................164
3.30 “L1” Outdoor Unit: Malfunction of PC Board ..........................................165
3.31 “L4” Outdoor Unit: Malfunction of Inverter Radiating Fin
Temperature Rise.................................................................................166
3.32 “L5” Outdoor Unit: Inverter Compressor Abnormal ...............................167
3.33 “L8” Outdoor Unit: Inverter Current Abnormal .......................................168
3.34 “L9” Outdoor Unit: Inverter Start up Error..............................................169
3.35 “LC” Outdoor Unit: Malfunction of Transmission between Inverter
and Control PC Board ..........................................................................170
3.36 “P1” Outdoor Unit: High Voltage of Capacitor in Main Inverter Circuit ...171
3.37 “P4” Outdoor Unit: Malfunction of Inverter Radiating Fin
Temperature Rise Sensor ....................................................................172
3.38 “UO” Outdoor Unit: Low Pressure Drop Due to Refrigerant Shortage
or Electronic Expansion Valve Failure..................................................173
3.39 “U2” Power Supply Insufficient or Instantaneous Failure ......................175
3.40 “U3”Check Operation not Executed......................................................177
3.41 “U4”Malfunction of Transmission between Indoor Units and
Outdoor Units .......................................................................................178
3.42 “U5”Malfunction of Transmission between Remote Controller
and Indoor Unit.....................................................................................180
3.43 “U8”Malfunction of Transmission between Main and
Sub Remote Controllers .......................................................................181
3.44 “U9” Malfunction of Transmission between Indoor and
Outdoor Units in the Same System ......................................................182
3.45 “UA” Excessive Number of Indoor Units ................................................184
3.46 “UC” Address Duplication of Central Remote Controller........................185
3.47 “UE”Malfunction of Transmission between Central Remote Controller
and Indoor Unit.....................................................................................186
3.48 “UF” System is not Set yet .....................................................................188
3.49 “UH” Malfunction of System, Refrigerant System Address Undefined...189