Strong Spas Ground Fault / Short Circuit

Spa trips the GFCI breaker immediately or within seconds of turning 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 intrusion in pump or blower, Shorted heater element to ground, Damaged wiring harness, Failed ozonator or LED lighting transformer

How to Fix / Troubleshooting

Safety first: Repeatedly resetting a tripping GFCI without finding the cause is dangerous. Turn off power and keep it off until the fault is identified.

Steps to isolate GFCI trips:

  • Visual inspection: With power OFF, inspect the equipment bay for obvious water leaks, burned components, or melted wires.
  • Disconnect components one at a time: A technician can unplug the heater, pumps, blower, ozonator, and lighting from the control pack one by one, restoring power each time to see when the breaker stops tripping. The last reconnected component before tripping is usually the culprit.
  • Check heater first: The heater element is a common cause. If disconnecting the heater stops the trip, the heater assembly likely needs replacement.

When to call a technician: Because this involves live testing and high voltage, a qualified spa technician or electrician should perform these steps.

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Repair Difficulty

Professional Required 5/5

Required Part

Heater Assembly
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