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T

tchiscilo

Hello, I have just moved in to a new flat this week and have a problem with noise coming from somewhere around the top of the boiler.

It's a loud clicking/knocking sound that lasts about a minute, stops for 20-30 seconds and starts again. It seems to happen at night, starting in the evening, and got pretty bad at 3am last night. I switched the boiler off completely and it continued for about 3 hours after that.

I have a video of the noise it makes: youtube.com/shorts/EgtfGtKBawA

It's a Worcester Bosch Greenstar 241 Junior.
Would anyone happen to know what might be causing this? Thank you.
 

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