Termet Delayed Ignition / Burner Light-Off Problem

Furnace makes loud banging or booming noises at startup.

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

Dirty burner on Termet burner rack, Incorrect ignition electrode position, Low primary air, Gas pressure issues

Safety: Turn off power and gas. Delayed ignition can be dangerous.

Inspect burner: Remove the burner assembly following the Termet service instructions. Clean burner ports with a soft brush and compressed air.
Check ignition electrode: Verify correct gap and position relative to the burner as per Termet specifications.
Do not adjust gas pressure: Gas pressure must be checked and adjusted only by a licensed gas technician.

If banging persists, stop using the furnace and contact a Termet-certified technician immediately.

Professional Required 5/5

Main Burner Assembly

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