Dimplex
Mechanical Vibration / Mounting Issue
Boiler vibrates excessively or rattles when running
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Possible Causes
Loose Dimplex fan mounting screws, Loose Dimplex pump bracket, Boiler not securely fixed to wall, Resonance with adjacent pipework or casing panels
How to Fix / Troubleshooting
Safety first: Do not attempt to tighten components inside the sealed combustion chamber.
User checks:
- Casing panels: Ensure the front and side panels of the Dimplex boiler are properly seated and screws are tight.
- Pipe clips: Check that nearby pipework is clipped and not vibrating against walls or the boiler casing.
Professional actions:
- Tighten internal Dimplex fan and pump mountings.
- Add or adjust pipe supports to reduce resonance.
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Repair Difficulty
Easy
2/5
Required Part
Dimplex fan and pump mountings
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