Lay-Z-Spa Electrical Short or Ground Fault

Lay-Z-Spa trips the house circuit breaker or RCD as soon as it is plugged in or when heater/bubbles are turned on.

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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

Water ingress into pump/heater housing, Shorted heater element, Damaged power cord or plug, Internal wiring insulation failure

How to Fix / Troubleshooting

Safety first: Repeated tripping indicates a potentially dangerous electrical fault. Unplug the spa and do not attempt to reset repeatedly.

  • 1. Visual inspection: Check the power cord, RCD plug, and pump housing for visible damage, cuts, or burn marks.
  • 2. Check for leaks: Look for water around or under the pump/heater unit that could enter the electronics.
  • 3. Isolate function: If possible, test filter-only mode versus heater or bubbles to see which function causes tripping (do this only once or twice; do not persist).
  • Do not open the housing: Internal shorts require professional testing.
  • Next steps: Contact Lay‑Z‑Spa support or a qualified electrician. The pump/heater unit or power cord assembly may need replacement.
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Repair Difficulty

Professional Required 5/5

Required Part

Pump/Heater Unit Assembly
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