ESIE16-02K
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Part 2. Troubleshooting
2.2. Error based troubleshooting
Page 20
31/05/21
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Version 1.1
RA R32 Split & multi split M-Series
2.2. Error based troubleshooting
Overview of error codes:
Indoor unit............................................................................................................................................................................................ 21
“A0-00” – Detection of refrigerant leak (only for FVXM-F model) ............................................................................................ 21
“A1-00” – PCB abnormality...................................................................................................................................................... 21
“A1-01” – PCB abnormality...................................................................................................................................................... 22
“A5-00” – Freeze-up protection / Heating peak cut control...................................................................................................... 22
“A6-00” – Fan motor abnormality............................................................................................................................................. 23
“C4-00” – Liquid pipe thermistor for heat exchanger abnormality ........................................................................................... 23
“C7-00” – Front panel open/close fault .................................................................................................................................... 24
“C9-00” – Suction air thermistor abnormality........................................................................................................................... 24
“CH-00” – Abnormality of refrigerant leakage sensor (only for FVXM-F model)...................................................................... 24
“UH-00” – Anti-icing function in other room(s) ......................................................................................................................... 25
Outdoor unit......................................................................................................................................................................................... 26
“E1-00” – Outdoor unit PCB abnormality................................................................................................................................. 26
“E3-00” – Discharge pressure abnormality.............................................................................................................................. 26
“E5-00” – Compressor motor lock or overheated .................................................................................................................... 27
“E6-00” – Compressor motor lock ........................................................................................................................................... 27
“E7-00” – Fan motor abnormality............................................................................................................................................. 28
“E8-00” – Compressor overcurrent detection .......................................................................................................................... 29
“EA-00” – 4-way valve abnormality.......................................................................................................................................... 29
“F3-00” – Discharge pipe temperature abnormality................................................................................................................. 30
“F6-00” – High pressure abnormality or refrigerant overcharge .............................................................................................. 30
“F8-00” – System shutdown due to compressor internal temperature abnormality................................................................. 30
“H0-00” – Compressor sensor system abnormality ................................................................................................................. 31
“H6-00” – Position detection sensor abnormality..................................................................................................................... 32
“H8-00” – Compressor input (CT) system abnormality............................................................................................................ 32
“H9-00” – Outdoor air temperature thermistor abnormality ..................................................................................................... 33
“J3-00” – Discharge pipe thermistor abnormality..................................................................................................................... 33
“J6-00” – Outdoor heat exchanger thermistor abnormality...................................................................................................... 33
“J8-00” – Liquid pipe thermistor abnormality ........................................................................................................................... 34
“J9-00” – Gas pipe thermistor abnormality .............................................................................................................................. 34
“L1-00” – Outdoor main PCB abnormality ............................................................................................................................... 35
“L3-00” – Switch box temperature abnormality........................................................................................................................ 36
“L4-00” – Inverter radiating fin temperature abnormality ......................................................................................................... 36
“L5-00” – Inverter instantaneous overcurrent (AC output)....................................................................................................... 37
“P4-00” – Radiating fin temperature sensor abnormality......................................................................................................... 38
System................................................................................................................................................................................................. 39
“U0-00” – Refrigerant shortage................................................................................................................................................ 39
“U2-00” – Power supply abnormality or instantaneous power failure ...................................................................................... 39
“U3-00” – Check operation not executed or transmission error............................................................................................... 40
“U4-00” – Transmission abnormality between indoor unit and outdoor unit ............................................................................ 41
“U5-00” – Malfunction of transmission between indoor unit and remote controller ................................................................. 41
“U7-00” – Transmission outdoor unit-outdoor unit abnormality ............................................................................................... 42
“UA-00” – Improper combination of indoor unit and outdoor unit ............................................................................................ 42
“UF-00” – Wiring and piping mismatch .................................................................................................................................... 43
