Service Check Function SiUS371614E167 Service Diagnosis2.3 Error Codes and Descriptionsk: ON h: OFF l: BlinkError code Operationlamp Error contents ReferencepageIndoor Unit A0 l External protection device abnormality 170A1 l Indoor unit PCB abnormality 172A3 l Drain level control system abnormality 173A6 l Fan motor lock, overload 175Indoor fan motor abnormality 178Overload/overcurrent/lock of indoor fan motor 182Blower motor not running 183Indoor fan motor status abnormality 184Low indoor airflow 185A7 (∗1) k Swing flap motor abnormality 186A8 l Power supply voltage abnormality 188Blower motor stops for over/under voltage 189A9 l Electronic expansion valve coil abnormality, dust clogging 190AF (∗1) k Drain level above limit 191AJ l Capacity determination device abnormality 192C1 l Transmission abnormality between indoor unit PCB and fan PCB 193Blower motor communication error 195C4 l Heat exchanger liquid pipe thermistor abnormality 196C5 l Heat exchanger gas pipe thermistor abnormality 196C6 l Combination error between indoor unit PCB and fan PCB 197Blower motor HP mismatch 198Indoor blower does not have required parameters to function 199C9 (∗2) l Suction air thermistor abnormality 196Remote sensor abnormality 200CA l Discharge air thermistor abnormality 196CC k Humidity sensor system abnormality 201CE (∗1) k Infrared presence/floor sensor error 202CJ (∗2) k Remote controller thermistor abnormality 207Outdoor Unit E1 l Outdoor unit main PCB abnormality 208E3 l Actuation of high pressure switch 209E4 l Actuation of low pressure sensor 211E5 l Inverter compressor motor lock 212E6 l Compressor damage alarm 214E7 l Outdoor fan motor abnormality 216E9 l Electronic expansion valve coil abnormality 218F3 l Discharge pipe temperature abnormality 219F4 l Wet alarm 221F6 l Refrigerant overcharged 222H3 l Harness abnormality (between outdoor unit main PCB and inverter PCB) 223H7 l Outdoor fan motor signal abnormality 224H9 l Outdoor air thermistor (R1T) abnormality 225J3 l Discharge pipe thermistor (R21T, R22T, R2T) abnormalityCompressor body thermistor (R14T) abnormality 225J5 l Compressor suction thermistor (R12T) abnormalitySuction air thermistor (R10T) abnormality 225J6 l Heat exchanger deicer thermistor (R11T) abnormalityHeat exchanger gas pipe thermistor (R8T, R9T) abnormality 225J7 l Receiver inlet thermistor (R3T) abnormalitySubcooling heat exchanger liquid pipe thermistor (R7T) abnormality 225J8 l Heat exchanger liquid pipe thermistor (R4T, R5T) abnormality 225J9 l Subcooling heat exchanger gas pipe thermistor (R6T) abnormalityReceiver gas purge thermistor (R13T) abnormality 225JA l High pressure sensor abnormality 227
