Jandy Sooting / Incomplete Combustion

Heater emits soot or black stains around the exhaust or cabinet.

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

Restricted air intake, Incorrect gas pressure, Dirty or misaligned burners, Blocked heat exchanger or flue

Safety first: Turn off power and gas. Sooting indicates dangerous combustion conditions.

Check air openings: Ensure all combustion air openings on the cabinet are clear of debris and not blocked.
Inspect vent: Look for obstructions in the exhaust vent and correct any improper venting.
Professional service: A technician must clean burners, inspect the heat exchanger, and adjust combustion and gas pressure.

Professional Required 5/5

Burner Assembly

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