Specifications

Si34-704
Troubleshooting 177
Part 6
Troubleshooting
1. Symptom-based Troubleshooting .......................................................179
2. Troubleshooting by Remote Controller ...............................................182
2.1 The INSPECTION / TEST Button.........................................................182
2.2 Self-diagnosis by Wired Remote Controller .........................................183
2.3 Self-diagnosis by Wireless Remote Controller .....................................184
2.4 Operation of the Remote Controller’s Inspection /
Test Operation Button ..........................................................................187
2.5 Remote Controller Service Mode .........................................................188
2.6 Remote Controller Self-Diagnosis Function .........................................190
3. Troubleshooting by Indication on the Remote Controller ....................198
3.1 “A0” Indoor Unit: Error of External Protection Device ...........................198
3.2 “A1” Indoor Unit: PC Board Defect.........................................................199
3.3 “A3” Indoor Unit: Malfunction of Drain Level Control System (S1L) ......200
3.4 “A6” Indoor Unit: Fan Motor (M1F) Lock, Overload...............................202
3.5 “A7” Indoor Unit: Malfunction of Swing Flap Motor (M1S) .....................203
3.6 “A9” Electronic Expansion Valve Malfunction / Dust Clogging ..............205
“A9” Indoor Unit: Malfunction of Electronic Expansion Valve Coil.........207
3.7 “AF” Indoor Unit: Drain Level above Limit..............................................209
3.8 “AJ” Indoor Unit: Malfunction of Capacity Determination Device ..........210
3.9 “C4” Indoor Unit: Malfunction of Thermistor (R2T) for
Heat Exchanger....................................................................................211
3.10 “C5” Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes..........212
3.11 “C9” Indoor Unit: Malfunction of Thermistor (R1T) for Suction Air.........213
3.12 “CA” Indoor unit: Malfunction of Thermistor (R4T) for discharge Air......214
3.13 “CJ” Indoor Unit: Malfunction of Thermostat Sensor
in Remote Controller ............................................................................215
3.14 “E1” Outdoor Unit: PC Board Defect ......................................................216
3.15 “E3” Outdoor Unit: Actuation of High Pressure Switch ..........................217
3.16 “E4” Outdoor Unit: Actuation of Low Pressure Sensor ..........................219
3.17 “E5” Outdoor Unit: Inverter Compressor Motor Lock.............................221
3.18 “E6” Outdoor Unit: STD Compressor Motor Overcurrent/Lock..............223
3.19 “E7” Outdoor Unit: Malfunction of Outdoor Unit Fan Motor ...................224
3.20 “E9” Outdoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E, Y2E)...............................................227
3.21 “F3” Outdoor Unit: Abnormal Discharge Pipe Temperature ..................229
3.22 “F6” Outdoor Unit: Refrigerant Overcharged.........................................231
3.23 “H7” Outdoor Unit: Abnormal Outdoor Fan Motor Signal.......................232
3.24 “H9” Outdoor Unit: Malfunction of Thermistor (R1T) for Outdoor Air.....234
3.25 “J2” Outdoor Unit: Current Sensor Malfunction ....................................235
3.26 “J3” Outdoor Unit: Malfunction of Discharge Pipe Thermistor
(R3, R31, 32T)......................................................................................236
3.27 “J5” Outdoor Unit: Malfunction of Thermistor (R2T), (R7T)
for Suction Pipe ....................................................................................238
3.28 “J6” Outdoor Unit: Malfunction of Thermistor (R4T)
for Outdoor Unit Heat Exchanger .........................................................239