Gree GWH09QB-K3DNA6G Service Manual page 51

Display Method of Indoor Unit
Indicator Display (during
Malfunction
blinking, ON 0.5s and OFF
No. Dual-8
Name
0.5s)
Code
Display
operation
Indicator
Compressor
intermediate
26 P3
frequence in
test state
Overcurrent
protection of
27 phase P5
current for
compressor
Charging
malfunction
28 PU
of capacitor
Malfunction
of module
29 P7
temperature
sensor circuit
Module high
30 temperature P8
protection
Overload
31 protection for H3
compressor
IPM
32 H5
protection
Module
33 temperature H5
is too high
48
Display Method of Outdoor
Unit
Indicator has 3 kinds of
display status and during
blinking, ON 0.5s and OFF
0.5s
Cool Heating Yellow Red
Indicator Indicator Indicator Indicator
OFF 3S
and blink
8 times
OFF 3S
and blink
4 times
OFF 3S
and blink
10 times
A/C status
Green
Indicator
During cooling and drying
operation, compressor will stop
while indoor fan will operate;
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
During cooling and drying
operation, compressor will stop
while indoor fan will operate;
During heating operation, the
complete unit will stop
During cooling operation,
compressor will stop while
indoor fan will operate;
During heating operation, the
complete unit will stop
During cooling and drying
operation, compressor will stop
while indoor fan will operate;
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.
Service Manual
Possible Causes
Showing during middle cooling or
middle heating test
Refer to the malfunction
analysis (IPM protection, loss
of synchronism protection and
overcurrent protection of phase
current for compressor.
Refer to the part three—charging
malfunction analysis of capacitor
Replace outdoor control panel AP1
After the complete unit is de-
energized for 20mins, check
whether the thermal grease on IPM
Module of outdoor control panel
AP1 is sufficient and whether the
radiator is inserted tightly. If its no
use, please replace control panel
AP1.
1. Wiring terminal oVC-CoMP
is loosened. In normal state, the
resistance for this terminal should
be less than 1ohm.
2.Refer to the malfunction analysis (
discharge protection, overload)
Refer to the malfunction
analysis (IPM protection, loss
of synchronism protection and
overcurrent protection of phase
current for compressor.
Installation and Maintenance