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Mend Alpha CB24 Combi Boiler Heating System Pressure Gauge

alpha combi boiler cb 24?

The needle on the water pressure gauge has dropped under the green band how do i set the needle back into the green band when the system is cold

mick
April 2009
AlphaAlpha CB24Heating, Home Heating SystemsCombi Boiler Heating System Pressure Gauge
p.s. you should set system pressure to about 1 bar on the gauge

James
April 2009
you need to top up system pressure from the mains using the filling loop (usualy a silver flexypipe with 2 black valves) under or close to the boiler, however if the system has been in a while the pressure should not really be dropping, you may have a slow leak somewhere, I would top it up but if it goes down again call a corgi/safegas reg gas installer/plumber

James
April 2009

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