Ⅴ.
Trouble shooting
Common faults
Phenomenon Possible reason
A.Noticeable White vaporous
cold air or water.
B. Plopping sound
A. The fan motor stops automatically for defrost.
B. There will be sound from the solenoid valve when
machine starts or ends to defrost.
C. During machine working or just stopping, a sound like
water flow, in 2~3 minutes of starting the machine. This
Sound comes from refrigerant flowing or water
drainage during dehumidification.
D. The plopping sound during the operation is caused by
expand on heating and contract on cooling of the heat
exchanger when temperature varies.
Not
failure
Automatic start or stop Check whether there is mal-function on the timer.
Heat pump does not run A. Power supply failure
B. Check manual power supply switch to make sure it is
on.
C. Fuse burned.
D. If machine auto- protector has started (check failure
code display on controller).
E. Check whether machine automatic on or off was set.
Recheck
Running but not heating or
cooling
Check if there is blockage on air inlet and outlet of the
unit.
Note: If the following conditions happen, please stop the machine and cut off the power
supply immediately, then contact your dealer:
The fuse is frequently broken or leakage circuit breaker jumped.
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