Midea MDFA-76CRN2, Manual

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MCAC-UTSM-12
24
12. Troubleshooting
PRE-DEF lamp(cooling and heating type)
or fan only lamp(cooling only type)
Infrared signal receiver
Operation lamp
Timer lamp
Alarm lamp
Manual Switch
Type
OPT.
Light
TME.
Light
DEF.
Light ALARM
Light
Remarks
Room temp. sensor error -
☆
- - Manual reset
Evaporator temp. sensor error
☆
- - - Manual reset
Condenser temp. sensor error - -
☆
- Manual reset
Water pump temp. sensor error
☆
- -
☆
Manual reset
The PRO terminal on PCB of
indoor unit without connected to
grounding wire
☆ ☆ ☆ ☆
Manual reset
EEPROM error
☆ ☆
- - Manual reset
Condensing water level full error - - -
☆
Manual reset
Note:
OPT. Light: operation light; TME. Light: timer light;
DEF. Light: defrosting light;
☆
: the light flashing.
13.1 Malfunctions of air conditioner
If any of the following malfunctions occur, stop operation of the air conditioner immediately. Turn off the power
switch, and contact the local after sales service center of manufacturer:

The RUN lamp flashes quickly (2 flash per second).

After turning off the power switch and then turning it on again, the RUN lamp still flashes quickly.

The receiving function of the remote controller fails, or the start/ shutdown operation is abnormal.

The fuse blows out frequently, or the circuit breaker protection occurs frequently.

Obstacles or water enter the air conditioner.

Condensing water leaks from indoor unit.

Other malfunctions occur.