NTI Vibration / Mechanical Noise

Boiler cabinet or nearby piping vibrates excessively 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

Imbalanced combustion fan, Loose mounting hardware, Water hammer in piping, Pump cavitation due to air

Safety: Turn off power before tightening any internal components.

Tighten mounts: Check mounting screws for the combustion fan, pumps, and panels. Tighten as needed.
Bleed air: Remove air from the system to prevent pump cavitation and water hammer.
Secure piping: Add pipe clamps or supports where pipes move or bang against structures.
Fan inspection: If vibration is localized to the fan, the fan wheel may be damaged and should be replaced.

Medium 3/5

Combustion Fan Assembly

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