Midea MV5-X252W/V2GN1 Service Manual page 51

V5 X VRF 50/60Hz
4.2 E0 Troubleshooting
4.2.1 Digital display output
4.2.2 Description
 Communication error between outdoor units.
 All units stop running.
 Error code is only displayed on the slave unit with the error.
4.2.3 Possible causes
 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.
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