96
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
Communica-
tion Malfunc-
tion
E6
Off 3S and
blink 6
times
Always
On
During cooling operation,
compressor stops while
indoor fan motor operates.
During heating operation,
the complete unit stops.
Refer to the malfunc-
tion analysis
High tempera-
ture resistant
protection
E8
Off 3S and
blink 8
times
Off 1S
and blink
6 times
During cooling operation,
compressor stops while
indoor fan motor operates.
During heating operation,
the complete unit stops.
Refer to the malfunc-
tion analysis
EEPROM
malfunction
EE
Off 3S and
blink 15
times
Off 1S
and blink
6 times
During cooling operation,
compressor stops while
indoor fan motor operates.
During heating operation,
the complete unit stops.
Replace outdoor
control panel AP1
Limit/decrease
frequency
due to high
temperature of
module
EU
Off 3S and
blink 6
times
Off 3S and
blink 6
times
All load operate normally,
while operation frequency
for compressor is decreased
Discharging after
the complete unit is
de-energized for 20
mins check on wheth-
er the thermal grease
on IPM Module of
outdoor control panel
AP1 is sufficient and
whether the radiator
is inserted tightly.
If its no use, please
replace control panel
AP1.
Malfunction
protection of
jumper cap
C5
Off 3S and
blink 15
times
Wireless remote receiver
and button are effective,
but can not dispose the
related command
1. No jumper cap
insert on mainboard;
2. Incorrect insert of
jumper cap; 3. Jump-
er cap damaged; 4.
Abnormal detecting
circuit of mainboard
Gathering
refrigerant
F0
Off 3S
and blink
1 times
Off 3S
and blink
1 times
Off 1S
and
blink 17
times
When the outdoor unit
receives signal of gather-
ing refrigerant, the
system will be forced to
run under cooling mode
for gathering refrigerant
Nominal cooling
mode