DC Inverter
X-Series
for R410A Unitary Split Air Conditioner
27
4 Maintenance
4.1 Failures Not Caused by Faults of The AC
(1) If your air conditioner fails to function normally, please first check the following
items before maintenance:
Problem
Cause
Corrective measure
The air conditioner
can't run.
If you turn off the unit and then
immediately turn it on, in order
to protect the compressor and
avoid system overload,
compressor will delay running
for 3min.
Please wait for a while.
Wire connection is wrong.
Connect wires according to the
wiring diagram.
Fuse or circuit breaker is
broken.
Replace the fuse or switch on
the circuit breaker.
Power failure.
Restart after power is resumed.
Power plug is loose.
Re-insert the power plug.
Bad cooling effect.
Air inlet and outlet of the units
have been blocked.
Clear the obstacles and keep
the room for the units well
ventilated.
Improper temperature setting
Reset a proper temperature.
Fan speed is too low.
Reset a proper fan speed.
Air flow direction is not right.
Change the direction of air
louvers.
Doors or windows are open.
Close them.
Exposed under direct
sunshine.
Put on curtains or louvers in
front of the windows.
Too many heat sources in the
room.
Remove unnecessary heat
sources.
Filter is blocked or dirty.
Send for a professional to clean
the filter.
Air inlets or outlets of the units
are blocked.
Clear away obstacles that are
blocking the air inlets and
outlets of the units.
