PDC Spas Overheating electrical component or melting insulation

Strong chemical or plastic smell from equipment bay or control pack area.

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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 terminals, Failing relay on PDC Spas control board, Pump motor overheating, Ozone generator overheating

How to Fix / Troubleshooting

Safety first: Immediately turn off power at the GFCI breaker. Do not continue to operate the spa until the source is identified.

  • 1. Visual inspection: Open the equipment bay and look for discolored, charred, or melted wires and components.
  • 2. Check terminal tightness: With power OFF, gently tug on heater and pump wires at the control pack. Tighten any loose screws to manufacturer torque specs.
  • 3. Identify hot components: Carefully feel (when cool) for components that show signs of overheating, such as the ozone generator or transformer.

Because overheating can quickly lead to fire or major damage, have a qualified spa technician inspect and repair any suspect components before restoring power.

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Repair Difficulty

Professional Required 5/5

Required Part

PDC Spas control pack
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