Midea MLCAC-UTSM-2010-10

Troubleshooting MLCAC-UTSM-2010-10
80 Outdoor Units
2. Timer lamp flashes
3. Alarm lamp slow-flash
Timer lamp flashes at 5Hz
Judge: Indoor/outdoor unit communication is abnormal
Refer to the outdoor unit LED display E2 malfunction in the following part
Indoor alarm lamps flash at 1Hz
Judge 1: Condenser temp. sensor is abnormal
Check whether the resistance of the condenser temp. sensor is
correct according to Annex 1
Judge 2: Outdoor unit is abnormal
Refer to the outdoor unit LED display E4、P1、P2 malfunction in the
following part
Replace condenser temp. sensor
No
Yes
Condenser temp. sensor or outdoor unit is malfunction