Midea MOUA-60HN1-R

MCAC-UTSM-2008-11 Troubleshooting
Outdoor Units 119
10.2 Solving steps for typical malfunction
(1) For the new four-way cassette
E2: Indoor temperature sensor is abnormal
E3: Evaporator temperature sensor is abnormal
E4: Condenser temperature sensor is abnormal
E2
Whether the resistance of the room temp. sensor is 10K
Replace temp. sensor
No
Yes
Replace the PCB
E3
Whether the resistance of the evaporator temp. sensor is 10K
Replace evaporator temp. sensor
No
Yes
Replace the PCB
E4
Whether the resistance of the condenser temp. sensor is 10K
Replace condenser temp. sensor
No
Yes
Replace the PCB