100
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 dis-
play status and during blink-
ing, ON 0.5s and OFF 0.5s
Operation
Cool
Heating
Yellow
Red
Green
Compressor
maximum
frequency in
test state
P2
blinking
in cool
mode,ON
0.25s
and OFF
0.25s
blinking
in heat
mode,ON
0.25s
and OFF
0.25s
Showing during max.
cooling or max. heat-
ing test
Compressor
intermediate
frequency in
test state
P3
blinking
in cool
mode,ON
0.25s
and OFF
0.25s
blinking
in heat
mode,ON
0.25s
and OFF
0.25s
Showing during mid-
dle cooling or middle
heating test
Overcurrent
protection of
phase current
for compres-
sor
P5
Off 3S
and blink
15 times
During cooling and
drying operation,
compressor will
stop while indoor
fan will operate.
During heating
operation, the
complete unit will
stop operation.
Refer to malfunction
analysis
Charging
malfunction
of capacitor
PU
Off 3S
and blink
17 times
During cooling and
drying operation,
compressor will
stop while indoor
fan will operate.
During heating
operation, the
complete unit will
stop operation.
Refer to the part
three-charging mal-
function analysis of
capacitor
Malfunction
of module
temperature
sensor circuit
P7
Off 3S
and blink
18 times
During cooling and
drying operation,
compressor will
stop while indoor
fan will operate.
During heating
operation, the
complete unit will
stop operation.
Replace outdoor
control panel AP1