Si10-417 Error Codes and Description of Fault
Service Diagnosis 23
4.3 System
Code
Indication
Description of Problem
Classification No. and
related page
3
4
5
6
00
Normal ————
U0
Insufficient gas 124 127 130 133
U2
Low-voltage detection — 137 138 —
Over-voltage detection 136 — — 140
U4
Signal transmission error
(between indoor and outdoor
units)
142 142 — 142
Outdoor unit PCB abnormality or
signal transmission circuit
abnormality
— — 144 —
UA
Unspecified voltage (between
indoor and outdoor units)
146 146 147 148
UH
Anti-icing function in other rooms — — 147 148
Si10-417.fm Page 23 Wednesday, September 22, 2004 6:38 PM
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