E11
ABL Phase Loss / Phase Asymmetry Fault

ABL wallbox displays E11; charging is blocked and the unit may indicate a phase imbalance.

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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

Missing phase on 3‑phase supply, Blown upstream fuse on one phase, Loose phase terminal inside ABL charger, Faulty phase monitoring circuit on ABL power board

How to Fix / Troubleshooting

Warning: Only a qualified electrician should work on 3‑phase circuits.

Steps:

  • Measure phase voltages: Verify that all three phases are present and within tolerance at the ABL input terminals.
  • Check upstream fuses/breakers: Replace any blown fuses and investigate the cause of the failure.
  • Tighten terminals: With power OFF, ensure that all phase conductors are securely clamped in the ABL terminal block.

If E11 persists with correct supply: The phase monitoring circuit on the power board may be defective. Replace the ABL power board following manufacturer procedures.

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Repair Difficulty

Hard 4/5

Required Part

ABL power board
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