Jandy Air or Gas Flow Resonance

Heater produces a whistling or high-pitched noise when running.

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

Partially blocked gas orifices, Vent restriction, Loose blower housing, High gas velocity through manifold

Safety first: Turn off power and gas before inspection.

Check vent and intake: Remove any obstructions and ensure terminations are installed correctly.
Inspect blower mounting: Tighten blower mounting screws and ensure gaskets are intact to prevent air leaks.
Gas orifices: A technician should inspect and clean gas orifices and verify correct sizing and pressure.

Hard 4/5

Blower Motor Assembly

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