E5: Abnormal Power Supply Voltage - Midea VRF Series Service Manual

V6R VRF 50/60Hz

2.5 E5: Abnormal power supply voltage

Digital display output
Description
 Abnormal power supply voltage.
 All units stop running.
 Error code is displayed on the unit with the error.
Trigger / recover condition
 Trigger condition: Outdoor unit power supply phase voltage < 170V or ≥ 270V.
 Recover condition: Outdoor unit power supply phase voltage is ≥ 180V and < 260V.
 Reset method: Resume automatically.
Possible causes
 Outdoor unit power supply voltage is abnormal or a phase is missing.
 Loosened wiring within electric control box.
 High voltage circuit error.
 Outdoor main PCB damaged.
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