Si10-417
Error Codes and Description of Fault
Service Diagnosis
21
4. Error Codes and Description of
Fault
4.1 Indoor Unit
Code
Indication
Description of Problem
Classification No. and
related page
1
2
A1
Indoor unit PCB abnormality
24
24
A5
Freeze-up protection function or
high pressure control
25
25
A6
Fan motor or related abnormality
27
29
C4
Heat exchanger temperature
thermistor abnormality
32
32
C7
Shutter drive motor / shutter limit
switch abnormality
33
33
C9
Room temperature thermistor
abnormality
32
32
Si10-417.fm Page 21 Wednesday, September 22, 2004 6:38 PM
