Midea MV6-252WV2GN1 Service Manual page 75

V6 VRF 50/60Hz
2.3 E1: Phase sequence error
Digital display output
Description
 Phase sequence error.
 All units stop running.
 Error code is only displayed on the unit with the error.
Trigger / recover condition
 Trigger condition: Wrong phase connection for 1.6s or phase missing for 48s.
 Recover condition: Correct phase connection.
 Reset method: Manually restart.
Possible causes
 Power supply phases not connected in correct sequence.
 Power supply terminals loose.
 Power supply abnormal.
 Main PCB damaged.
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