120
Fault Displays
Models GWH30LB-D3DNA3E & GWH36LB-D3DNA3E
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
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
middle cooling or
middle heating
test
Overcurrent
protection of
phase current
for compres-
sor
P5
Off 3S
and blink
15 times
During cooling
and drying oper-
ation, compressor
will stop while
indoor fan will
operate. During
heating operation,
the complete unit
will stop opera-
tion.
Refer to malfunc-
tion analysis
Charging
malfunction
of capacitor
PU
Off 3S
and blink
17 times
During cooling
and drying oper-
ation, compressor
will stop while
indoor fan will
operate. During
heating operation,
the complete unit
will stop opera-
tion.
Refer to the part
three-charging
malfunction anal-
ysis of capacitor
Malfunction
of module
temperature
sensor circuit
P7
Off 3S
and blink
18 times
During cooling
and drying oper-
ation, compressor
will stop while
indoor fan will
operate. During
heating operation,
the complete unit
will stop opera-
tion.
Replace outdoor
control panel AP1