ROBLEM
POSSIBLE CAUSE
SOLUTION
Water leakage
Rubber plug at the rear plate of the machine
is out of place.
Water tube inside the machine is not in the
place or broken.
Water tube is of bad connection or broken.
Put back the rubber plug.
Check and reinstall or replace the water
tube inside the machine.
Check or replace the water tube.
Weak cooling
Dusty filter
Dusty condenser.
Air vent is blocked.
The room temperature is too high.
Too many windows or doors are open.
Insufficient refrigerant or the refrigerant leaks
out..
HEAT PUMP is broken.
Clean the filter.
Use a high pressure air spray to clean
the dust. *Do not touch the condenser
directly, it is very hot now.
Remove the blockade.
It’s out of the working range of the
machine.
Close the windows/doors.
Please check:
Is the current/power consumption
decreasing?
Is the suction pressure of the machine
too low?
Is the temperature of the discharging
tube too high?
Is the suction tube frozen in ambient
temperature?
7. Replace the heat pump.
Machine does not
work at all.
Bad connection of the mains and plug.
P.C. Board fused.
P.C. Board or transformer breaks down.
Bad connection of the wires.
Re-plug the power cord.
Check and replace.
Check and replace.
Check and replace.
Compressor doesn’t
work, only the fan to
circulate the air.
Voltage/Frequency is too low.
Overload protector of compressor breaks
down.
Compressor capacitor breaks down.
Compressor breaks down.
P.C. board breaks down.
Room temperature is too low.
Check it by a voltmeter.
Check and replace.
Check and replace.
Check and replace.
Check and replace.
It is out of the working range of the
machine.
1
