Pentair Electrical Short / Overcurrent

Heater causes the circuit breaker to trip immediately or shortly after startup.

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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

Shorted blower motor, Shorted transformer or control board, Incorrect wiring or voltage, Water intrusion into electrical components

How to Fix / Troubleshooting

Safety: Do not repeatedly reset a tripping breaker. Turn off power and investigate the cause.

  • Visual inspection: Look for burned wires, melted insulation, or signs of arcing inside the electrical compartment.
  • Check for moisture: Ensure there is no water on or near electrical components. Dry thoroughly and correct any leaks.
  • Isolate components: A technician can disconnect loads (blower, transformer, etc.) one at a time to identify which component is causing the trip.
  • Replace faulty component: Replace any motor, transformer, or board that tests shorted or shows visible damage.
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Repair Difficulty

Professional Required 5/5

Required Part

Blower Motor / Transformer / Main Control Board
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