Troubleshooting
Indicator Lights
LED Indicator Light Display - Cooling Only
POWER TIMER SLEEP
LED Light Diagnostic Table
GREEN
ORANGE RED
Error
Code
Operation /
Faulty Indication
Action
- Cooling mode -
- Timer On -
- Sleep mode On -
1 time
E1
Room air sensor contact
loose / short
Check room sensor
connection / change room air
sensor
2 times
E2
Indoor coil sensor contact
open
Check indoor coil sensor
connection / change indoor
coil sensor
1 time
E4
Compressor overload
protection / Indoor coil sensor
short
If running ampere highly
increase, change the
compressor. If not, replace
the coil sensor.
2 times
E6 Pump fault
Clear the clogging at drain
pipe. If pump is not working,
change the pump.
6 times
E8
Hardware error
(tact switch pin short)
Check tact switch / change
display board PCB.
ON
BLINKING
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