Midea MSMBA-07HRN1 - Page 45

DM16-01.01.21en Mission On-off
Service manual 45
10.2.2 Zero crossing detection error diagnosis and solution(E2)
Error Code
E2
Malfunction decision
conditions
When PCB does not receive zero crossing signal feedback for 4
minutes or the zero crossing signal time interval is abnormal.
Supposed causes ● Connection mistake
● PCB faulty
Trouble shooting: