Davey No Power / Control Failure

Pump will not start at all; no lights or display on the Davey controller.

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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

Tripped breaker or blown fuse, Faulty pump isolator switch, Failed internal power supply on controller, Loose wiring at terminal block

How to Fix / Troubleshooting

Safety first: Only qualified persons should open electrical enclosures. Always isolate power before inspecting wiring.

Step-by-step checks (user level):

  • 1. Check breaker and RCD: Reset if tripped. If it trips again immediately, stop and call an electrician.
  • 2. Verify isolator: Ensure the pump's local isolator switch is ON.
  • 3. Inspect plug/socket: If the pump is plug-in type, test the outlet with another appliance.

Technician-level checks:

  • 4. Check terminal connections: Tighten any loose wires in the pump terminal box.
  • 5. Test internal power supply: Measure low-voltage outputs from the controller's power supply section.

If there is correct mains at the pump but no display, the controller PCB may need replacement.

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Repair Difficulty

Hard 4/5

Required Part

Control PCB
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