Midea V6-i Series Service Manual

V6-i VRF 50/60Hz
99
Part
6 - Diagnosis and Troubleshooting
L4: MCE error 2.13.9
Notes:
1. Compressor inverter module address is set through dial switch S7 on the inverter module. The compressor inverter module A/B location refers to the
wiring diagram.
S7 on inverter module
Inverter module address
0 for compressor inverter module A
1 for compressor inverter module B
L4 protection
ODU ventilation is not good
Remove barriers from heat
exchanger and air outlet of ODU
ODU stop valves are closed Open the ODU stop valves
Reconnect the cables based on
wiring diagram
The resistance between 3 phases of
compressor is over 5Ω
Replace the compressor
The insulation resistance of
compressor is less than 100Ω
Replace the compressor inverter
board, restart the unit and the error is
solved
Refer to P1 or P3 troubleshooting
No
No
Yes
Yes
Disconnect
the power
supply
Compressor wiring is not properly
Inverter module address setting
1
and
discharge temperature sensor wiring is
not properly
Reset the inverter module address
and reconnect the discharge
temperature sensor cables
Yes
Normal
Yes
Yes
Yes
Yes
No
No
No
No
No

Midea V6-i Series Specifications

General

Brand	Midea
Model	V6-i Series
Category	Air Conditioner
Language	English