ESIE09-05 Troubleshooting by Remote Controller
Troubleshooting 159
w: ON x: OFF c: Blink
Malfunction
code
Operation
lamp
Malfunction contents Page
Referred
AHU A0
c
Error of external protection device 165
A1
c
PC board defect, E
2
PROM defect 166
A3
c
Malfunction of drain level control system (S1L) —
A6
c
Fan motor (M1F) lock, overload 167
A8
c
Abnormal power supply voltage 168
A9
c
Malfunction of moving part of electronic expansion valve (Y1E) 169
AF
w
Drain level above limit —
AJ
c
Malfunction of capacity setting 171
C1
c
Failure of transmission (between AHU PC board and fan PC board) 172
C4
c
Malfunction of thermistor (R2T) for heat exchange (loose connection,
disconnection, short circuit, failure)
174
C5
c
Malfunction of thermistor (R3T) for gas pipes (loose connection,
disconnection, short circuit, failure)
175
C6
c
Failure of combination (between AHU PC board and fan PC board) 176
C9
c
Malfunction of thermistor (R1T) for suction air (loose connection,
disconnection, short circuit, failure)
177
CA
c
Malfunction of thermistor for discharge air (loose connection,
disconnection, short circuit, failure)
178
CC
w
Malfunction of humidity sensor system 179
CJ
w
Malfunction of thermostat sensor in remote controller 180
Outdoor Unit E1
c
PC board defect 181
E3
c
Actuation of high pressure switch 182
E4
c
Actuation of low pressure sensor 184
E5
c
Compressor motor lock 186
E6
c
Standard compressor lock or over current —
E7
c
Malfunction of outdoor unit fan motor 187
E9
c
Malfunction of moving part of electronic expansion valve (Y1E, Y3E) 188
F3
c
Abnormal discharge pipe temperature 190
F6
c
Refrigerant overcharged 191
H3
w
Failure of high pressure switch —
H4
c
Actuation of low pressure switch —
H7
c
Abnormal outdoor fan motor signal —
H9
c
Malfunction of thermistor (R1T) for outdoor air (loose connection,
disconnection, short circuit, failure)
192
J2
c
Current sensor malfunction —
J3
c
Malfunction of discharge pipe thermistor (R2T) (loose connection,
disconnection, short circuit, failure)
193
J5
c
Malfunction of thermistor (R3T, R5T) for suction pipe (loose connection,
disconnection, short circuit, failure)
194
J6
c
Malfunction of thermistor (R6T) for heat exchanger (loose connection,
disconnection, short circuit, failure)
195
J7
c
Malfunction of thermistor (R7T) for outdoor unit liquid pipe 196
J9
c
Malfunction of subcooling heat exchanger gas pipe thermistor (R4T) 197
JA
c
Malfunction of high pressure sensor 198
JC
c
Malfunction of low pressure sensor 199
L0
c
Inverter system error —
L1
c
Malfunction of PC board 200
L4
c
Malfunction of inverter radiating fin temperature rise 201
L5
c
Inverter compressor abnormal 202
L8
c
Inverter current abnormal 203
L9
c
Inverter start up error 204
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