23
Unit Maintenance
Failures Not Caused by Faults of the AC
If your air conditioner fails to function normally, check the following items:
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.
Wait for 3 minute time delay.
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.
Bad cooling or heating
effect.
Air inlet/outlet of the unit is
blocked.
Clean unit or remove
obstruction.
Improper temperature setting.
Adjust temperature setting at
the thermostat.
Fan speed is too low.
Change fan speed.
