M thermal Split
54 202004
Midea M thermal Split
4.3 E1 Troubleshooting
Digital display output 4.3.1
Description 4.3.2
Phase sequence error.
Only applies to 3-phase models.
M thermal Split stops running.
Error code is displayed on outdoor unit main PCB and user interface.
Possible causes 4.3.3
Power supply phases not connected in correct sequence.
Power supply terminals loose.
Power supply abnormal.
Main PCB damaged.
Midea CAC