E2
Hurlcon Under/Over Voltage Protection

Display shows E2 and pump stops or refuses to start, often after a storm or brownout.

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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

Mains voltage outside allowable range, Loose supply connections, Faulty Hurlcon power supply module, Utility issues

How to Fix / Troubleshooting

Safety: Treat all wiring as live until proven otherwise by a qualified person.

  • Measure voltage (electrician only): Check line voltage at the pump terminals while attempting to start. Compare with Hurlcon specifications.
  • Inspect supply cable: Look for damage, overheating, or brittle insulation on the pump’s supply cable.
  • Try different time of day: If voltage sag occurs during peak usage, try running the pump at off-peak times.

If E2 is frequent, an electrician should correct the supply issue or install a dedicated circuit. If supply is stable, the Hurlcon internal power supply board may be faulty and require replacement.

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Repair Difficulty

Hard 4/5

Required Part

Hurlcon pump power supply board
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