Service Manual

SiUS281811E Troubleshooting by Error Codes
Part 6 Service Diagnosis 177
4. Troubleshooting by Error Codes
4.1 Error Codes and Description
k: ON h: OFFl : Blink
Error code
Operation
lamp
Description
Reference
Page
Indoor Unit
A0 l
External protection device abnormality 185
External protection device abnormality (FTQ-TA only) 186
A1 l Indoor unit PCB abnormality 187
A3 l Drain level control system (S1L) abnormality 188
A6 l
Indoor fan motor (M1F) lock, overload 190
Indoor fan motor abnormality 192
Blower motor not running (FTQ-TA only) 196
Indoor fan motor status abnormality (FTQ-TA only) 197
Low indoor airflow (FTQ-TA only) 198
A7 k Swing flap motor abnormality 199
A8 l
Power supply voltage abnormality 201
Blower motor stops for over/under voltage (FTQ-TA only) 202
A9 l Electronic expansion valve coil abnormality, Dust clogging 203
AF k Drain level above limit 205
AJ l Capacity determination device abnormality 206
C1 l
Transmission abnormality (between indoor unit PCB and fan PCB) 207
Blower motor communication error (FTQ-TA only) 209
C4 l Heat exchanger liquid pipe thermistor abnormality 210
C5 l Heat exchanger gas pipe thermistor abnormality 210
C6 l
Combination abnormality (between indoor unit PCB and fan PCB) 211
Blower motor HP mismatch (FTQ-TA only) 212
Indoor blower does not have required parameters to function (FTQ-TA only) 213
C9 l
Suction air thermistor (R1T) abnormality 210
Remote sensor abnormality 214
CA k Discharge air thermistor abnormality 210
CE k Infrared presence/floor sensor error 215
CJ(1) k Remote controller thermistor abnormality 220