Catalina Spas Overheating Electrical Component

Spa cabinet or equipment bay has a persistent burning or electrical smell.

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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

Overheating pump motor, Loose electrical connection causing arcing, Failing heater relay or contactor, Melted wiring insulation in control pack

How to Fix / Troubleshooting

Safety: Immediately turn off power at the breaker if you smell burning. Do not continue to operate the spa.

  • Step 1 – Visual inspection: With power off, open the equipment bay and inspect pumps, heater, and control pack for discoloration, melted plastic, or charred wiring.
  • Step 2 – Check motor temperature: Carefully feel pump motors (when cool) for signs of overheating or discoloration.
  • Step 3 – Tighten connections: A qualified technician should tighten all electrical connections in the control pack and at the terminal block.
  • Step 4 – Replace damaged parts: Any burned wires, connectors, or components (pump, heater, board) must be replaced with Catalina-compatible parts before restoring power.
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Repair Difficulty

Professional Required 5/5

Required Part

Spa Control Pack
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