Termet Gas Flow / Burner Resonance Noise

Water heater emits 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 burner injectors on Termet heater, Incorrect gas pressure, Loose burner mounting, Air intake resonance in flue system

Safety: Noise alone is not usually dangerous, but it may indicate combustion issues.

Check flue and air intake: Ensure the flue terminal is not partially blocked and that the air intake is unobstructed.
Inspect burner: Have a technician remove and clean the burner and injectors, checking for damage or distortion.
Gas pressure: A qualified person should measure and adjust gas pressure to Termet's recommended values.
Secure components: Tighten burner mounting screws and check that internal panels are not vibrating.

Hard 4/5

Main Burner Assembly

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