Baxi Mechanical Vibration / Mounting Fault

Heater vibrates excessively or rattles when the fan or burner is 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

Loose mounting screws on Baxi fan or burner, Fan impeller imbalance, Loose casing panels, Debris caught in fan or flue

Safety: Isolate power before tightening any internal components.

Steps:

Tighten casing screws: Check and tighten all accessible screws on the front and side panels.
Inspect fan mount: With the cover off, gently check that the fan assembly is firmly secured to its bracket.
Remove debris: Look for any loose objects or wiring touching the fan or burner.

Professional: If vibration persists, the fan may need balancing or replacement.

Medium 3/5

Combustion Fan Assembly

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