Why is my boiler making a loud vibrating noise

It wasn't doing this when we last used the heating, but it was noticeable when we turned on the heating yesterday

Asked by Joyce on 20th Dec 2025
Expert Trade Answers
Best Answer
"It would need to be diagnosed, includes combustion related noises, pump or fan bearings. You need an Engineer in front of it. Don't think a video would help."
Answered on 20th Dec 2025 - Member since Dec 2024 - report
"this could be a fan making the noise. will need to investigate to see what's causing it"
Answered on 26th Dec 2025 - Member since Dec 2025 - report
"Partly blocked heat exchanger of pump smudged combustion fan bearings can all be a vailed reson"
Answered on 20th Dec 2025 - Member since May 2020 - report
"Could be a number or things pump, fan...... would need to visit. Where are you located"
Answered on 20th Dec 2025 - Member since Oct 2024 - report
"You would need a engineer visit as can be many things pump, fan ,heat exchanger restricted ,combustion issue"
Answered on 20th Dec 2025 - Member since Jul 2020 - report
"It could be a number of reasons but normally if the system doesn't have enough water in it it can be the pump that is making the vibrating noise. Check your system pressure or if you have a gravity fed system. Make sure all your radiators are blood if the Boiler itself is making noise then it could be an issue with either a fan or a gas valve
Our best advice is contact your local Gas safe engineer for peace of mind"
Answered on 28th Dec 2025 - Member since May 2018 - report
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