Service Check Function SiUS331604E
129 Service Diagnosis
3.3 Error Codes and Descriptions
k: ON h: OFF l: Blink
Error code
Operation
lamp
Description
Reference
Page
Indoor Unit A0 l External protection device abnormality 135
A1 l Indoor unit PCB abnormality 136
A3 l Drain level control system (S1L) abnormality 137
A6 l Indoor fan motor (M1F) lock, overload
Indoor fan motor abnormality
Overload/overcurrent/indoor fan motor lock
139
142
146
A7 k Swing flap motor abnormality 147
A8 l Power supply voltage abnormality 149
A9 l Electronic expansion valve coil abnormality, Dust clogging 150
AF k Drain level above limit 152
AJ l Capacity determination device abnormality 153
C1 l Transmission abnormality (between indoor unit PCB and fan PCB) 154
C4 l Heat exchanger liquid pipe thermistor abnormality 156
C5 l Heat exchanger gas pipe thermistor abnormality 156
C6 l Combination abnormality (between indoor unit PCB and fan PCB) 157
C9 l Suction air thermistor (R1T) abnormality
Remote sensor abnormality
156
158
CA k Discharge air thermistor abnormality 156
CC k Humidity sensor system abnormality 159
CE k Infrared presence/floor sensor error 160
CJ k Remote controller thermistor abnormality 165
Outdoor Unit E1 l Outdoor main PCB abnormality 166
E3 l Activation of high pressure switch 167
E4 l Activation of low pressure sensor 169
E5 l Inverter compressor motor lock 171
E7 l Outdoor fan motor abnormality 173
E9 l Electronic expansion valve coil abnormality 175
F3 l Discharge pipe temperature abnormality 177
F6 l Refrigerant overcharged 178
H9 l Outdoor air thermistor abnormality 179
J3 l Discharge pipe thermistor abnormality 179
J5 l Suction pipe thermistor abnormality 179
J6 l Outdoor heat exchanger deicer thermistor abnormality 179
J7 l Outdoor heat exchanger liquid pipe thermistor abnormality 179
J9 l Subcooling heat exchanger gas pipe thermistor abnormality 179
JA l High pressure sensor abnormality 180
JC l Low pressure sensor abnormality 181
L1 l PCB (for inverter compressor) abnormality 182
L4 l Radiation fin temperature rise abnormality 183
L5 l Inverter compressor instantaneous overcurrent 184
L8 l Inverter compressor overcurrent 185
L9 l Inverter compressor startup abnormality 186
LC l Transmission error (between microcomputers on the outdoor main PCB) 187
P1 l Inverter circuit capacitor high voltage 188
P4 k Radiation fin thermistor abnormality 189
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