Immergas
Mechanical Noise / Vibration
Boiler is very noisy during operation (whining, grinding, or rattling sounds).
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Safety Warning
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.
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Possible Causes
Worn fan bearings, Pump bearings failing, Loose mounting brackets, Resonance in casing or flue
How to Fix / Troubleshooting
Safety: Isolate power before touching moving parts. Do not operate the boiler if mechanical noise is severe.
- Identify noise source: Remove the front cover and carefully listen to locate whether the noise comes from the fan, pump, or other components.
- Check for loose parts: Tighten loose screws, brackets, and casing panels. Ensure the flue is securely supported.
- Fan noise: If the fan whines or rattles, its bearings may be worn. Replace the fan assembly.
- Pump noise: Grinding or rumbling from the pump indicates bearing wear; replace the pump.
- Re-test: After repairs, run the boiler and confirm that noise levels are normal.
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Repair Difficulty
Hard
4/5
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