2.5 E5: Abnormal power supply voltage
Digital display output
Description
ï‚§ Abnormal power supply voltage.
ï‚§ All units stop running.
ï‚§ 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.
ï‚§ Reset method: Resume automatically.
Possible causes
ï‚§ Outdoor unit power supply voltage is abnormal or a phase is missing.
ï‚§ Loosened wiring within electric control box.
ï‚§ High voltage circuit error.
ï‚§ Outdoor main PCB damaged.