Midea MV5-X252W/V2GN1 - 4.2 E0 Troubleshooting; 4.2.1 Digital display output; 4.2.2 Description; 4.2.3 Possible causes

V5 X VRF 50/60Hz
50 201608
Midea V5 X Series Service Manual
4.2 E0 Troubleshooting
Digital display output 4.2.1
Description 4.2.2
 Communication error between outdoor units.
 All units stop running.
 Error code is only displayed on the slave unit with the error.
Possible causes 4.2.3
 Incorrect outdoor unit address setting.
 Communication wires between outdoor units not connected properly.
 Loosened wiring within electric control box.
 Damaged main PCB or electric control box communication terminals block.