SiUS12-928_B
4. Code Indication on Remote Controller
4.1
Indoor Unit
00
A1
A5
A6
C4
C9
U4
UA
Service Diagnosis
Error Codes
Normal condition
Indoor unit PCB abnormality
Freeze-up protection control or heating peak-cut control
Fan motor or related abnormality
Indoor heat exchanger thermistor or related abnormality
Room temperature thermistor or related abnormality
Signal transmission error (between indoor unit and outdoor unit)
Unspecified voltage (between indoor unit and outdoor unit)
Code Indication on Remote Controller
Description
DC motor (CTXS/FTXS series)
AC motor (CDXS/FDXS series)
Reference Page
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155
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