Very noisy, gushing, whirring etc sound in pipework around grundfos pump and boiler.

Terry85 · 20 Dec 2023

The day after having two new radiators put on I’ve got very noisy pipework around the Grundfos pump and boiler. So bad I’ve switched it all off and nearly ran off.
Worse on a water heating cycle than central heating.
Pump is very hot to touch.
Please see videos.
Open vented system. I’ve bled all the rads.
Any thoughts?

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Very noisy, gushing, whirring etc sound in pipework around grundfos pump and boiler.

Terry85

DIYnot Local

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