Midea MFA3T-96CRN1, Техническое и сервисное руководство

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MCAC-UTSM-201707 Midea R410A T3 50Hz Top-discharge Series
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
Foreign substance or moist enters the air conditioner or other exceptions occur.

The indoor unit leaks water.

Other exceptions occur.

If the air conditioner fails but does not meet the foregoing phenomena obviously, check the
system in the following procedure:
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 doors and windows 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 temperature during the
cooling status or higher during the
heating status.
3-minutes protection of the
compressor.
Waiting for 3 minutes.