116
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
Malfunction
protection of
jumper cap
C5
Off 3S
and blink
15 times
Wireless remote
receiver and
button are effec-
tive, but can not
dispose the related
command
1. No jumper cap
insert on main-
board; 2. Incorrect
insert of jumper
cap; 3. Jumper cap
damaged; 4. Ab-
normal detecting
circuit of main-
board
Gathering
refrigerant
F0
Off 3S
and blink
1 times
Off 3S
and blink
1 times
When the outdoor
unit receives
signal of gather-
ing refrigerant,
the system will
be forced to run
under cooling
mode for gather-
ing refrigerant
Nominal cooling
mode
Indoor ambi-
ent tempera-
ture sensor
is open/short
circuited
F1
Off 3S
and blink
1 times
During cooling
and drying oper-
ating, compressor
stops while indoor
fan operates;
During heating
operation, the
complete unit will
stop operation.
1. Loosening or
bad contact of
indoor evapora-
tor temp sensor
and mainboard
terminal; 2. Com-
ponents on the
mainboard fall; 3.
Indoor evapora-
tor temp sensor
damaged; 4. Main-
board damaged.
Indoor
evaporator
temperature
sensor is
open/short
circuited
F2
Off 3S
and blink
twice
AC stops opera-
tion once reach-
es the setting
temperature.
Cooling, drying:
internal fan motor
stops operation
while other loads
stop operation;
heating: AC stop
operation
1. Loosening or
bad contact of
indoor evapora-
tor temp sensor
and mainboard
terminal; 2. Com-
ponents on the
mainboard fall; 3.
Indoor evapora-
tor temp sensor
damaged; 4. Main-
board damaged.
