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Mend Glow-worm combi Boiler Pressure Gauge

The pressure guage on the bolier has gone to maximum, how can I get it back?

I have just returned from a holiday to find my boiler making a weird sound and the pressure gauge is at 4 (which is the maximum).
It is a glow worm combi boiler.
Is there something I can do to reduce the pressure?

Sarah
October 2009
Glow-wormGlow-worm combiHeating, Home Heating SystemsBoiler Pressure Gauge
Get the expansion vessel . Will need to be pumped up

John

John
October 2009
Its curious that the pressure didn't release at 3 bar - this is the usual. Reduce pressure by bleeding water off at the radiators - it will take a while but its the most boiler friendly way. Make sure the filling loop isn't slightly open to prevent it pressurising again.

John
October 2009

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