Midea MFA-96CRN1 Technical Manual page 86

R410A 50Hz Tropical Split AC
11.1 E1 malfunction
LED indicate E1
Fault of indoor temperature sensor T1
Judge 1: Whether the indoor temperature
sensor T1 is break off.
Judge 2: Whether the indoor temperature
sensor T1 is malfunction.
Validate: Check whether the resistance of
the temperature sensor is correct
according to Annex 1.
Judge 3: PCB is malfunction
Replace indoor PCB
86
No
Yes
Yes
Connects it well.
No
Replace it.
MCAC-UTSM-2012-12