GFCI TRIP
Caldera Spas Ground Fault / Electrical Leakage

GFCI breaker trips immediately or shortly after turning spa on; no specific code on topside.

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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

Heater element shorted to ground, Water intrusion in pump motor, Shorted ozonator, Damaged wiring harness in equipment bay

How to Fix / Troubleshooting

Critical safety: Repeated GFCI tripping indicates a potentially dangerous electrical fault. Do not bypass or replace the GFCI with a non-GFCI breaker.

  • Visual inspection: With power off, open the equipment compartment and look for obvious signs of water leaks, burned components, or melted wiring.
  • Isolate components (advanced): A technician will typically disconnect the heater, ozonator, and pumps one at a time, then reset the GFCI to identify which component causes the trip.
  • Common culprit: A heater tube with visible corrosion or burn marks is often the source and should be replaced.

Because of shock and fire risk, GFCI troubleshooting beyond visual inspection should be performed by a qualified spa electrician or technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Heater Assembly
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