E15
Lay-Z-Spa Ground Fault / Leakage Current Detected

Lay-Z-Spa shows E15 and may not start; often related to RCD or ground fault issues.

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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

Moisture inside pump/heater housing, Damaged insulation on internal wiring, Failing heater element leaking to ground, Faulty RCD plug

How to Fix / Troubleshooting

Safety first: This error indicates a potential electric shock hazard. Immediately unplug the spa and do not use it until the fault is resolved.

  • 1. Inspect for external leaks: Check all hose connections, the pump/heater housing, and the underside of the unit for water leaks that could enter the electronics.
  • 2. Dry the area: If you see moisture on the outside of the housing, dry it thoroughly and ensure the spa is protected from rain and splashes.
  • 3. Test RCD: Press the test and reset buttons on the RCD plug according to the manual. If it will not reset, the RCD or internal wiring may be faulty.
  • Do not open the housing: Internal leakage current faults require insulation testing and are not user-serviceable.
  • Next steps: Contact Lay‑Z‑Spa support or a qualified electrician. The pump/heater unit or RCD plug may need replacement.
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Repair Difficulty

Professional Required 5/5

Required Part

Heater Element or Internal Wiring (Pump/Heater Unit)
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