101
Fault Displays
Models GWH09MB-D3DNA3D & GWH12MB-D3DNA3D
Malfunction
Name
Indoor Unit
Outdoor Unit
A/C Status
Possible Causes
Dual-8
Code
Display
Indicator Display (during blink-
ing, ON 0.5s and OFF 0.5s
Indicator has 3 kinds of display
status and during blinking, ON
0.5s and OFF 0.5s
Operation
Cool
Heating
Yellow
Red
Green
Module high
temperature
protection
P8
Off 3S
and blink
19 times
During cooling and
drying operation,
compressor will
stop while indoor
fan will operate.
During heating
operation, the com-
plete unit will stop
operation.
After the complete
unit is de-ener-
gized for 20 mins,
check whether the
thermal grease on
the IPM Module
of outdoor control
panel AP1 is suffi-
cient and whether
the radiator is
inserted tightly. If
its no use, please
replace control
panel AP1
Decrease fre-
quency due to
high tempera-
ture resistant
during heat-
ing operation
H0
Off 3S
and blink
10 times
All loads operate
normally, while
operation frequency
for compressor is
decreased.
Refer to the mal-
function analysis
(overload, high
temperature resis-
tant)
Static dedust-
ing protection
H2
Off 3S
and blink
2 times
Overload
protection of
compressor
H3
Off 3S
and blink
3 times
Off 1S
and blink
8 times
During cooling and
drying operation,
compressor will
stop while indoor
fan will operate.
During heating
operation, the com-
plete unit will stop
operation.
1. Wiring termi-
nal OVC-COMP
is loosened. In
normal state, the
resistance for this
terminal should be
less than 1ohm; 2.
Refer to the mal-
function analysis.
System is
abnormal
H4
Off 3S
and blink
4 times
Off 1S
and blink
6 times
During cooling and
drying operation,
compressor will
stop while indoor
fan will operate.
During heating
operation, the com-
plete unit will stop
operation.
Refer to the mal-
function analysis
(overload, high
temperature resis-
tant)
