Midea Mini C Series Service Manual page 65

Mini C Series VRF 50/60Hz
2.14 H0: Communicate malfunction between inverter module board and main control board (for all models)
2.14.1 Digital display output
H0
2.14.2 Description
 Communicate malfunction between inverter module board and main control board protection.
 The system stops running.
 Error code displayed on the unit with the error.
2.14.3 Trigger / recover condition
 Trigger condition: Communicate malfunction between inverter module board and main control board.
 Recover condition: Communicate between inverter module board and main control board is normal.
 Reset method: Resume automatically.
2.14.4 Possible causes
 DC fan motor damaged.
 Main control board damaged.
 Filter board damaged (100/120 model can ignore this reason for they don't have a filter board).
2.14.5 Procedure
Power off for 3 minutes, and disconnect
the DC fan motor connection port,
repower on to confirm whether the fault
is cleared
Main control board damaged.
64
H0
No
Yes
DC fan motor malfunction