93
Fault Displays
Models GWH09MA -A3DNA2B & GWH12MA-A3DNA2B Table 1
Error Item
Indoor
Unit
Display
State of Outdoor Unit LEDs F
Flashing Times
Possible Cause of Fault
Green
LED
Red
LED
Yellow
LED
Stop for anti-freezing
protection of indoor
unit
E2
blink 3
times
refrigerant leakage, indoor unit air
flow blocked up, filter duty
Stop for exhaust
protection
E4
blink 7
times
less refrigerant, capillary blocked up,
ambient temperature is abominable
Stop for low voltage
protection
E5
blink 5
times
low, voltage, ambient temperature is
abominable
Stop for communica-
tion malfunction
E6
Always
On
communication line failure, main
PCB failure, interfere source, con-
nect line wrong
Stop for compressor
overload protection
H3
blink 8
times
compressor shell over heat, less re-
frigerant, capillary blocked up
Overload protection
H4
blink 6
times
ambient temperature is abominable,
heat exchanger blocked up
Stop for IPM module
protection
H5
blink 4
times
IPM module over heat, low voltage
DC motor (indoor
unit) does not operate
H6
DC motor control terminal does not
contact well, Blade does not rotate
fluently due to incorrect installation;
motor or control panel is damaged
Indoor ambient
temperature sensor
malfunction
F1
terminal connect not reliable, tem-
perature sensor malfunction
Indoor tube
temperature sensor
malfunction
F2
terminal connect not reliable, tem-
perature sensor malfunction