Gree GWH12ACC-K6DNA1D Service Manual page 64

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Service Manual
Dual-8
Malfunction
No.
Name
Code
Display
Malfunction
of complete
44
U5
units current
detection
The four-way
45
valve is
U7
abnormal
Frequency
46
limiting
(power)
Compressor
47
is open-
circuited
The
temperature
48
for turning
on the unit is
reached
Frequency
limiting
49
(module
temperature)
M a l f u n c t i o n
50
of detecting
JF
plate(WIFI)
PFC
51
HC
protection
Installation and Maintenance
Display Method of Indoor Unit
Indicator Display (during blinking, ON
0.5s and OFF 0.5s)
operation
Cool
Heating
Indicator
Indicator
Indicator
A/C status
During cooling and drying
operation, the compressor will
stop while indoor fan will operate;
During heating operating, the complete
unit will stop operation.
If this malfunction occurs during heating
operation, the complete unit will stop
operation.
During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop operation
Possible Causes
Theres circuit malfunction on outdoor
units control panel AP1, please replace
the outdoor units control panel AP1.
1.Supply voltage is lower than AC175V;
2.Wiring terminal 4V is loosened or
broken;
3.4V is damaged, please replace 4V.
Replace outdoor control panel AP1 or
Reactor
61

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