Midea MTB1T-96CWN1 Technical & Service Manual page 85

MCAC-UTSM-201707

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
The system does
not run.
Symptom
The heating effect is
poor.
Symptom
The air conditioner
sends air out but
cannot provide cool
air at all.
Possible causes
Power supply fails.
The power switch is not
connected.
The fuse blows out or the circuit
breaker acts.
The remote controller or wired
controller fails.
Possible causes
The outdoor environment
temperature is lower than -7° C.
The door or window is not closed
tightly.
The refrigerant is leaked or
replenishment is deficient.
Possible causes
The setting temperature is
improper.
3-minutes protection of the
compressor.
Midea R410A T3 50Hz Top-discharge Series
Way of handing
Operate it after power supply resumes
and connect the power supply properly.
Replace the fuse or check whether
electric leakage occurs.
Check the remote controller or wired
controller.
Way of handing
Use a heating device. The unit cannot
operate normally.
Close doors and windows tightly.
Detect leak, and fill the refrigerant of a
correct quantity.
Way of handing
The setting temperature is lower than
the room's temperature during the
cooling status or higher during the
heating status.
Waiting for 3 minutes.
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