Midea
V6R
Series Service Manual
ODU addresses on switch ENC1 are set
incorrectly
1
Set the ODU addresses correctly
Communication wires between ODUs are
not connected properly
2
Ensure the communication wires are
two-core shielded cable and are
connected properly
Wires between outdoor main PCB and
electric control box communication
terminals block are loose
Ensure the wires are connected properly
Replace the outdoor main PCB resolves
the error
Replace the electric control box
communication terminals block
Notes:
1. 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 within one system.
2. All the wires for H1, H2, E connections should be three-core shielded cable, the wiring should be connected according to polarity (H1 to H1, H2 to H2), and
the wiring should not be open or short circuited.
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