Gree GWC09QB-K3DNB2B Service Manual page 46

Service Manual
No.
Name
Code
Display
43 detection U1
compressor
44 U3
dropping for
of complete
45 U5
detection
46 U7
abnormal
47 limiting
(power)
Compressor
48 is open-
49
limiting
50
of zero-cross
51 U8
detection
Installation and Maintenance
0.5s)
0.5s
Operation Cool Heating Yellow
Indicator Indicator Indicator Indicator
13 times
20 times
13 times
20 times
17 times
Unit
Red Green
Indicator Indicator
operation, compressor will stop
operation, compressor will stop
operate;
operation.
operation.
13 times
once
8 times
11 times
control panel AP1.
AC175V;
2.Wiring terminal 4V is loosened or
3.4V is damaged, please replace
4V.
mainboard is abnormal.
43