Midea MOV-120CN1-C

R410A 50Hz Tropical Split AC MCAC-UTSM-2012-12
88
11.3 P1 malfunction
LED indicate P1
Under heating mode, T2 is on high
temperature protection
Judge 1: Check whether the evaporator temperature
sensor T2 is break off.
Connect it well.
Yes
No
Judge 2: Whether the evaporator temperature sensor
is malfunction.
Validate: Check whether the resistance of the
temperature sensor is correct according to Annex 1.
Replace the temperature sensor
No
Yes
Judge 3: Check whether the outdoor ambient
temperature is too high (more than 24℃)
Stop the unit.
Yes
No
Replace indoor PCB