Bullfrog Spas Overheating Electrical Component or Wiring

Spa water has a strong burning or electrical smell near the equipment bay

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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

Loose high-current connection at heater or pump, Failing pump motor overheating, Control board component failure, Melted relay or terminal block

How to Fix / Troubleshooting

Safety: Immediately turn OFF power at the GFCI breaker. Do not continue to operate the spa until the source of the smell is identified and corrected.

  • Visual inspection: Open the equipment bay and look for discolored, melted, or charred wiring, connectors, or board components.
  • Check heater terminals: Inspect the heater connections on the control board for signs of overheating. Tighten any loose screws and replace burned connectors.
  • Inspect pump motors: Smell near each pump motor. A strong burnt odor or visible smoke indicates motor failure; the pump should be replaced.
  • Examine control board: Look for burned relays or components on the control board. If found, the control pack will likely need replacement.

Because of the fire risk, do not restore power until the faulty component has been replaced or repaired by a qualified technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Control Pack, Heater Wiring, or Jet Pump Motor
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