Alpha 240E boiler fires up ok but after few seconds (particularly when there demand for DHW and when the flam starts going high) it makes very loud noise. I think the issue is to do with circulation. the bump is going. can someone confirm please.
take a video of the boiler when making the noise, post on youtube, then post the link on here, we cant just guess what kind of noise it is, old bt reliable boilers, have their faults like everything else but a lot worse out therewhat do you think the reason for the noise?
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