Midea MV6-R252WV2RN1 - 2.12 H0: Communication error between main board and compressor drive board; 2.12.1 Digital display output; 2.12.2 Description; 2.12.3 Trigger; recover condition

V6R VRF 50Hz
102
Midea
V6R
Series Service Manual
2.12 H0: Communication error between main board and compressor drive board
Digital display output
Description
 H0 indicates a communication error between main board and compressor drive board.
 All units stop running.
 Error code is displayed on the unit with the error.
Trigger / recover condition
 Trigger condition: Main control board and inverter driver board cannot communication for 2 minutes.
 Recover condition: Communication go back to normal.
 Reset method: Resume automatically.
Possible causes
 Loosened communication wiring from the outdoor main PCB to the inverter module.
 Filter board damaged.
 Compressor inverter module damaged.
 Outdoor main PCB damaged.