Midea V6 Series Service Manual page 75

V6 VRF 50Hz
2.3 E1: Phase sequence error
2.3.1 Digital display output
2.3.2 Description
 Phase sequence error.
 All units stop running.
 Error code is only displayed on the unit with the error.
2.3.3 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.
2.3.4 Possible causes
 Power supply phases not connected in correct sequence.
 Power supply terminals loose.
 Power supply abnormal.
 Main PCB damaged.
74