PRESSURE GAUGE

JSM · 4 Jan 2006

I have repressurised my Baxi Combi Condensing boiler (thanks to Stan). What I forgot to mention is that when my boiler begins heating the pressure gauge falls and then returns to normal when the boiler switches off. Baxi told me that the pressure gauge should in fact rise when the boiler is heating as the water expands.

Can any kind person suggest a reason why the pressure gauge falls instead of rising?

Very many thanks in anticipation.

Tinitus · 4 Jan 2006

Hi
this is normal, when pump kicks in pressure guage will drop slightly then as system heats up pressure guage will rise with expansion

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PRESSURE GAUGE

JSM

Tinitus

DIYnot Local

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