Hayward Abnormal Radiant Heat / Insufficient Ventilation

Heater cabinet is excessively hot to the touch on sides or top during operation.

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

Blocked air intake openings, Internal insulation damage, Incorrect clearances to combustibles, Overfiring due to high gas pressure

Safety First: Turn off power and gas. Allow the heater to cool before touching the cabinet.

Clear obstructions: Ensure nothing is blocking the louvers or intake openings on the heater cabinet.
Check clearances: Verify the heater has the minimum clearances from walls and other equipment as specified by Hayward.
Inspect insulation: Remove panels and look for missing or damaged internal insulation. Replace as needed.
Gas pressure check: Have a technician verify that gas pressure and input rate are within specifications.

Hard 4/5

Cabinet Insulation

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