107
Fault Displays
Models GWH18MC-D3DNA3D & GWH24MD-D3DNA3D
Malfunction
Name
Indoor Unit Displaying Method
Outdoor Unit Display (LED)
A/C Status
Malfunctions
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
Running
LED
Cooling
LED
Heating
LED
D40/D5
D41/D6 D42/D16 D43/D30
Indoor and
outdoor
units com-
munication
malfunction
E6
OFF 3S
and blink
6 times
o
o
o
¶
Cooling com-
pressor will
stop, indoor
fan motor
works; Heating
all will stop
Please refer to
troubleshoot-
ing
Anti-high
temp. protec-
tion
E8
OFF 3S
and blink
8 times
n
o
n
n
Cooling com-
pressor will
stop, indoor
fan motor
works; Heating
all will stop
Please refer to
troubleshoot-
ing
Indoor unit
motor no
feedback
H6
OFF 3S
and blink
11 times
Whole unit
will stop to run
1. Poor insert
for GPF;
2. Indoor
control board
AP1 malfunc-
tion; 3. Indoor
motor M1
malfunction
Jump wire
cap mal-
function
protection
C5
OFF 3S
and blink
15 times
Whole unit
will stop to run
Indoor
control board
AP1 jump
cap poor
connected,
please reinsert
or replace the
jump cap
Indoor am-
bient sensor
open circuit,
short circuit
F1
OFF 3S
and blink
once
Cooling
dehumidify-
ing; indoor
fan motor is
running other
overloads will
stop. Heating
whole unit will
stop to run
1. Room temp
sensor is not
connected
with the
control panel
AP1. 2. Room
temp sensor is
damaged