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- 22 Apr 2021
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Recently this horrible screeching noise has been coming from the cylinder. The pressure is fine and all the heating controls (Vaillant VRT350) are normal too. We've not had heating from the radiators upstairs since this has started too. The noise seems to be coming from the box on the left at 00:10 which I believe is the motorized valve? It wouldn't let me upload it here, so here's a link to the video https://imgur.com/4vJxJXc
Does it need to be replaced?
Any help would be insanely appreciated
Does it need to be replaced?
Any help would be insanely appreciated