119
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
Voltage of DC
bus-bar is too
low
PL
Off 3S
and blink
21 times
Off 3S
and blink
12 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.
1. Measure the
voltage of position
L and N on wiring
board (XT), if the
voltage is higher
than 150VAC, turn
on the unit after
the supply voltage
is increase to the
normal range; 2.
If the AC input is
normal, measure
the voltage of
electrolytic capac-
itor C on control
panel (AP1), if
its normal, theres
malfunction for
the circuit, please
replace the control
panel (AP1)
Compressor
Min frequen-
cy in test state
P0
blinking
in cool
mode,ON
0.25s
and OFF
0.25s
blinking
in heat
mode,ON
0.25s
and OFF
0.25s
Showing during
min. cooling or
min. heating test
Compressor
rated frequen-
cy in test state
P1
blinking
in cool
mode,ON
0.25s
and OFF
0.25s
blinking
in heat
mode,ON
0.25s
and OFF
0.25s
Showing during
nominal cooling
or nominal heat-
ing test
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. heating test