OV
Jandy Over-Voltage Supply Condition

Variable-speed Jandy pump shuts down and displays OV or OVER VOLTAGE fault.

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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

Incorrect supply voltage (wired for 115V but supplied 230V), Utility over-voltage condition, Miswired service panel, Faulty transformer or generator output

How to Fix / Troubleshooting

Safety first: Turn off power at the breaker immediately. Over-voltage can permanently damage the pump and other equipment.

  • Verify nameplate vs supply:
    • Check the Jandy pump nameplate for required voltage.
    • Confirm the breaker and wiring match this requirement.
  • Inspect wiring configuration:
    • Ensure the pump is wired correctly for single- or dual-voltage models per the Jandy wiring diagram.
    • Correct any miswiring before restoring power.
  • Check with a multimeter:
    • Have a qualified electrician measure voltage at the pump terminals.
    • If voltage is consistently high, the issue may be with the service panel or utility.
  • Do not operate until resolved: Continued operation under over-voltage can destroy the drive and motor. Have an electrician correct the supply problem before restarting the pump.
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Repair Difficulty

Professional Required 5/5
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