V6-i VRF 50/60Hz
92
Midea
V6
-i
Series S
er
vice M
anual
2.12
xH0: Communication error
Digital display output
2.12.1
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
2.12.2
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
2.12.3
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
2.12.4
Incorrect compressor inverter module address setting.
Loosened communication wiring from the main PCB to
the inverter module.
Bridge rectifier damaged.
Main PCB damaged.
Compressor inverter module damaged.
Procedure
2.12.5
H0 error
Compressor inverter module address
setting is incorrect
Reset the compressor
inverter module address via
dial switch S7 on inverter
module
1
Communication wire from outdoor
main PCB CN26 to inverter module CN8/
CN9 is loosened
2
Reconnect the
communication wire
Both LED1 and LED2 on inverter module
are off when power on
3
No
No
Yes
Yes
Check the power supply
circuit
4
Yes
Replace the outdoor main PCB, is the
malfunction solved?
No
Normal
Yes
No
Replace the inverter module
