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No should be powered / running
Discuss Grundfos pump making unusual sound/boiler not coming on in the Central Heating Forum area at PlumbersForums.net
Thank you! I will try that again then.No should be powered / running
Just tried that. When I removed the centre screw the impeller screw head was visibly turning but the pump was still making the same abnormal sound and the boiler is not igniting. The same sound can be heard in the boiler cupboard. Difficult to describe but it sounds as though water is trying to circulate around the system but certainly not running smoothly. The pump is old, would it be practical or indeed sensible to replace the capacitor only, or would it be wiser to replace the entire pump assembly with a new one? Many thanksIf it springs into life when you try it with power on, then new capacitor or pump required.
Time to move on and change pump
Dab evosta 3 is our replacement pump of choice.
Better price than grundfos and Dab is owned by grundfos!
Op says in #6 pump is in airing cupboard
It’s a YouTube link showing a repair (general video), hence why steadyon mentioned Vaillant, boiler is potterton.Video shows the pump in the boiler
It’s a YouTube link showing a repair (general video), hence why steadyon mentioned Vaillant, boiler is potterton.
Apologies for the confusion I have unintentionally caused by posting the link to this YouTube video. I linked to this as a reference to something I had already tried to free the impeller. I hadn't realised that the link and video 'thumbnail' would appear as a huge image within the post!Video shows the pump in the boiler
Reply to Grundfos pump making unusual sound/boiler not coming on in the Central Heating Forum area at PlumbersForums.net
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