E1
Hurlcon Incorrect Wiring / Polarity Error

Controller shows E1 and pump will not start; often after incorrect wiring or new installation.

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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

Active and neutral reversed at Hurlcon pump terminal, Missing earth connection, Incorrect voltage selection link on motor

How to Fix / Troubleshooting

Safety: Only a licensed electrician should alter fixed wiring. Do not attempt if you are not qualified.

  • Verify supply: Confirm the pump is connected to the correct voltage as per the Hurlcon nameplate (typically 230–240 V single phase).
  • Check terminal links: For dual-voltage motors, ensure the terminal links are configured as per the wiring diagram under the terminal cover.
  • Correct polarity: Ensure active, neutral, and earth are connected to the correct terminals and that earth is securely bonded.

After correcting wiring, reset the controller. If E1 persists, the internal protection circuit may have been damaged and the motor or control board may require replacement.

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Repair Difficulty

Professional Required 5/5

Required Part

Hurlcon pump motor terminal assembly
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