Troubleshooting by Remote Controller
SiBE281013
106
Service Diagnosis
4.2
Error Codes and Description
Remote
Controller
Display
Contents of Error
Reference Page
Indoor Unit
A1
Indoor unit PCB abnormality
108
A3
Drain water level system abnormality
109
A6
Indoor unit fan motor abnormality
111
AJ
Capacity setting abnormality
112
C1
Transmission Error (between indoor unit PCB and adaptor PCB)
113
C4
Heat exchanger thermistor system abnormality
115
C5
Intermediate heat exchanger thermistor system abnormality
115
C9
Suction air thermistor system abnormality
115
CC
Humidity sensor system abnormality
116
CJ
Remote controller thermistor abnormality
117
Outdoor
Unit
E1
Outdoor unit PCB abnormality
118
E3
High pressure abnormality (detected by the high pressure switch)
119
E4
Actuation of pressure sensor
123
E5
Compressor motor lock
125
E7
Outdoor unit fan motor abnormality
126
E9
Electronic expansion valve abnormality
128
F3
Discharge pipe temperature control
131
H3
High pressure switch system abnormality
133
H9
Outdoor air thermistor system abnormality
134
J3
Discharge pipe thermistor system abnormality
134
J5
Suction pipe thermistor system abnormality
134
J6
Heat exchanger thermistor system abnormality
134
J7
Intermediate heat exchanger thermistor system abnormality
134
J8
Liquid pipe thermistor system abnormality
134
L1
Outdoor unit PCB abnormality
135
L4
Radiation fin temperature rise
137
L5
Output overcurrent detection
139
L8
Electronic thermal (time lag)
141
L9
Stall prevention (time lag)
143
LC
Transmission system abnormality (between control and inverter PCB)
145
P1
Open phase or power supply voltage imbalance
146
PJ
Defective capacity setting
147
U0
Refrigerant shortage
148
U2
Power supply voltage abnormality
151
System
U4
Transmission error between indoor and outdoor unit
153
U5
Transmission error between remote controller and indoor unit
156
U8
Transmission error between MAIN remote controller and SUB remote controller
157
UA
Field setting switch abnormality
158
UC
Address duplication of centralized controller
160
UE
Transmission error between centralized controller and indoor unit
161
UF
Transmission error between indoor and outdoor unit / piping and wiring
mismatch / refrigerant shortage
163