Vokera Delayed Ignition / Burner Light-Off Noise

Furnace runs but makes loud banging or booming noises at ignition

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, Incorrect gas pressure, Misaligned ignition electrode, Partially blocked injectors

Safety: Turn off power and gas. Do not continue to operate a furnace with loud ignition bangs.

Do not attempt gas adjustments: Gas pressure and combustion must be set by a licensed gas engineer.
Describe symptoms: Note when the noise occurs (at start-up only, or during running) and report to the technician.
Professional cleaning: A technician should remove and clean the burner, check injectors, verify electrode position, and set gas pressures.

Professional Required 5/5

Main Burner Assembly

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