Midea Blanc ON-OFF Series

DM16-01.01.07en Blanc On-off
Service manual 55
11.2.6 Indoor PCB /Display board communication error (E7)
Error Code
E7
Malfunction decision
conditions
Indoor PCB does not receive feedback from Display board.
Supposed causes ● Wiring mistake
● PCB faulty
● Display board malfunction
Trouble shooting: