SiBE01-829 Troubleshooting
Service Diagnosis 43
4. Troubleshooting
4.1 Error Codes and Description
★
: Displayed only when system-down occurs.
Code Description
Reference
Page
System
00
Normal —
U0
Insufficient gas 53
UA
Hardware error (tact switch pin short) 52
Indoor
Unit
A1
Indoor unit PCB abnormality 44
A5
Freeze-up protection control, high pressure control or indoor heat
exchanger thermistor abnormality
45
A6
Fan motor or related abnormality (AC motor) 47
C4
Heat exchanger thermistor abnormality 48
C9
Room temperature thermistor abnormality 48
Outdoor
Unit
F6
High pressure control in cooling or outdoor heat exchanger
thermistor abnormality
50
J6
Heat exchanger thermistor or related abnormality 52