E17
Lucid Line Phase Imbalance / Phase Loss

Lucid charger shows E17; charging stops intermittently with ‘Phase Imbalance’ or ‘Line Asymmetry’ message (common on 3‑phase variants).

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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

One phase missing at Lucid input terminal block, Loose phase conductor, Utility supply imbalance beyond spec

How to Fix / Troubleshooting

Safety first: Three-phase systems carry high fault currents; only qualified electricians should measure or adjust.

Steps:

  • Verify all phases present: With power OFF, check that all required phase conductors are landed on the Lucid input terminals and are tight.
  • Measure voltages: With power ON (electrician only), measure phase-to-phase and phase-to-neutral voltages at the charger input. Compare to Lucid specifications.
  • Check upstream breakers: Ensure no upstream phase breaker has tripped or failed.

Resolution: Correct any wiring or breaker issues. If supply is within spec and E17 persists, the Lucid voltage sensing circuit on the control or power board may be faulty and require replacement.

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Repair Difficulty

Professional Required 5/5

Required Part

Lucid Input Terminal Block / Voltage Sensing Circuit
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