Bubbling noise in hot water tank when CH switched off

mattpbrad · 26 Apr 2015

Hi all. I have an Open vented central heating system with a back boiler. Last night I was awoke by a bubbling noise (about 3/4 seconds) within the hot water tank in the airing cupboard with a small amount of water coming out of the Open vent pipe into the header tank above the hot water tank. I have read about pumping over but the central heating was off! Any thoughts?

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Bubbling noise in hot water tank when CH switched off

mattpbrad

DIYnot Local

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