Midea V4 Plus

MCAC-VTSM-2016-04 R410A DC Inverter VRF V4 Plus W Series 50Hz
Troubleshooting 201
3.1 E0: Communication error between main units
E0: Communication error between main units
ODU addresses (ENC1) are set incorrectly (the
master unit address should be set as 0, slave
units addresses should be set from 1 to 2, and
the addresses should not be repeated in one
system)
Reset the ODU addresses
ODU communication wires are connected
incorrectly (all the wires for H1, H2, E
connections should be 3-core shielded wire,
the wiring should be polarity connection (H1
connect to H1, H2 connect to H2), the wiring
should not be short circuit)
Replace the communication
wires to 3-core shielded wire,
reconnect the communication
wire
Outdoor main PCB is
damaged
Replace outdoor main
PCB
No
Yes
No
Yes
2-core shielded wire (×)
3-core shielded wire (√)