AquaCal Moisture Intrusion into Electrical or Sensor Components

Heater frequently shuts off when it rains or after heavy splashing from pool.

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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

Damaged control panel gasket, Open knockouts or conduit entries, Cracked sensor housings, Poorly sealed electrical connections

How to Fix / Troubleshooting

Safety first: Do not operate the heater with water inside the electrical compartment. Turn off power before inspection.

  • Inspect gaskets: Check the control panel door and top cover gaskets for cracks or gaps. Replace if deteriorated.
  • Seal openings: Ensure all conduit entries are sealed with appropriate fittings and that unused knockouts are closed.
  • Dry components: Gently dry wet boards and connectors with a low‑heat source and allow time before re‑energizing.
  • Relocate spray sources: Adjust sprinklers or water features so they do not spray directly on the heater.
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Repair Difficulty

Medium 3/5

Required Part

Control Panel Gasket
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