Midea R410A T3 Top-discharge Split Type Series 50Hz MCAC-UTSM-201501
103
Symptom
Possible causes
Way of handing
The system does
not run.
Power supply fails.
Operate it after power supply resumes
and connect the power supply properly.
The power switch is not
connected.
The fuse blows out or the circuit
breaker acts.
Replace the fuse or check whether
electric leakage occurs.
The remote controller or wired
controller fails.
Check the remote controller or wired
controller.
Symptom
Possible causes
Way of handing
The heating effect is
poor.
The outdoor environment
temperature is lower than -7°C.
Use a heating device. The unit cannot
operate normally.
The door or window is not closed
tightly.
Close door and window tightly.
The refrigerant is leaked or
replenishment is deficient.
Detect leak, and fill the refrigerant of a
correct quantity.
Symptom
Possible causes
Way of handing
The air conditioner
sends air out but
cannot provide cool
air at all.
The setting temperature is
improper.
The setting temperature is lower than
the room’s during the cooling status or
higher during the heating status.
3-minutes protection of the
compressor.
Waiting for 3 minutes.
Symptom
Possible causes
Way of handing
The cooling effect is
poor.
The condenser or evaporator is
too dirty.
Clean the heat-exchanger.
The filter is blocked.
Clean the filter.
The intake orifice or exhaust
orifice of the indoor and outdoor
unit is blocked.
Remove foreign mattes to keep well
ventilated.
The door or window is opened.
Close all the windows and doors.
Directly exposed to sunlight.
Obstruct sunlight by curtains or
jalousie.
Too many heat sources.
Reduce heat sources.
Too high outdoor environment
temperature.
It is normal, and the cooling effect of the
air conditioner is deteriorated.
The refrigerant is leaked or the
replenishment is deficient.
Detect leak, and fill the refrigerant of a
correct quantity.
