Jandy Overheating of Non-Metal Components

Heater runs but causes plastic smell or burning odor around the unit.

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.

Possible Causes

Debris on heat exchanger, Melted wiring insulation, Loose or misrouted wires near hot surfaces, Blocked air passages

Safety first: Turn off power and gas immediately if you smell burning plastic.

Inspect interior: After cooling, open the cabinet and look for melted wire insulation, plastic parts, or debris on the heat exchanger.
Clear debris: Remove any leaves, plastic, or foreign objects from inside the heater.
Reroute wiring: Ensure wires are secured away from hot surfaces and sharp edges.
Replace damaged parts: Replace any melted wiring harnesses or components. If the cause is not obvious, have a technician evaluate for overheating issues.

Hard 4/5

Wiring Harness

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