Midea MV6-252WV2GN1 Service Manual page 95

V6 VRF 50/60Hz
2.13 xH0: Communication error
Digital display output
In the error code, 'x' is a placeholder for the compressor system (compressor and related electrical components), with 1
representing compressor system A and 2 representing compressor system B.
Description
 1H0 indicates a communication error between the main control chip and the compressor A inverter driver chip.
 2H0 indicates a communication error between the main control chip and the compressor B inverter driver chip.
 All units stop running.
 Error code is only displayed on the unit with the error.
Trigger / recover condition
 Trigger condition: Main control chip and inverter driver chip cannot communication for 2 minutes.
 Recover condition: Communication go back to normal.
 Reset method: Resume automatically.
Possible causes
 Incorrect compressor inverter module address setting.
 Loosened communication wiring from the main PCB to
the inverter module.
94
 Bridge rectifier damaged.
 Main PCB damaged.
 Compressor inverter module damaged.