Boiler or connected pipework vibrates excessively when heating is on.

Safety first: Turn off power before adjusting pump settings or touching pipework.

• Adjust pump speed: If the pump has multiple speed settings, try reducing the speed to minimise turbulence and vibration.
• Bleed system: Remove air from radiators and high points. Air can cause surging and noise.
• Secure pipes: Fit additional pipe clips and ensure pipes do not touch walls or other structures that can amplify vibration.
• Check valves: Avoid using valves that close too quickly on the flow and return; replace with slower-closing types if necessary.