E005
Autel Input Undervoltage Protection Trip

E005 displayed; charging stops unexpectedly or will not start, especially during low grid voltage periods.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Supply voltage below rated range, Undersized wiring causing voltage drop, Loose line terminals, Overloaded circuit or long cable run

How to Fix / Troubleshooting

Safety first: Turn off power before tightening any terminals.

  • Check breaker and wiring size: Confirm the circuit breaker and wire gauge meet Autel’s installation requirements for the charger’s maximum current rating.
  • Measure voltage under load: Have an electrician measure voltage at the charger while another high-load device is running on the same circuit. Significant drop indicates undersized wiring or overloaded circuit.
  • Tighten terminals: With power off, inspect and tighten line and neutral (if present) terminals at the charger and in the panel to the specified torque.
  • Reduce load: Temporarily reduce the charger’s maximum current setting via the Autel app or front panel and test again. If E005 disappears at lower current, the supply may be marginal.
  • Correct wiring issues: If undervoltage persists, have an electrician upgrade the circuit wiring or move the charger to a more stable supply.
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Repair Difficulty

Medium 3/5
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