10. Troubleshooting
10.1 Confirm below 2 points before any failures occurred
(1) Confirm power supply is OK
Check the plug of power line is normal energized and work.
(2) Confirm power voltage
Make sure the voltage is between normal range, if exceed the range, the unit may abnormally runs.
AC 220-240+/-10%
10.2 Error Code
Please see the blow failure contents and repair methods when the unit is energized or the error code occurred
during the unit runs.
Failure Display
Code Failure Name
Dual-8
Display
Indicator Lamp
Repair Method
1 Environment temperature
sensor is open, short circuit.
F1 Cooling indicator lamp goes
out 3S blinks 1 time, and
lights up 0.5S goes out 0.5S
If loose, text resistance value if
normal by universal meter
2 Temperature sensor for
indoor pipe temperature is
open, short circuit.
F2 Cooling indicator lamp goes
out 3S blinks 2 times, and
lights up 0.5S goes out 0.5S
If loose, text resistance value if
normal by universal meter
3 Over-blow protection H8 Over-blow indicator lamp goes
out 3S blinks 8 times
the indication of
instruction to discharge the water
of chassis.
Refer to
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