2.4 E5: Abnormal power supply voltage
Digital display output
Description
Abnormal power supply voltage.
All units stop running.
Error code is only displayed on the unit with the error.
Trigger / recover condition
Trigger condition: Outdoor unit power supply phase voltage < 165V.
Recover condition: Outdoor unit power supply phase voltage is > 180V.
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.
Main PCB damaged.
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