ARISTON MICROSYSTEM 21 PRESSURE KEEPS RISING

wozza180 · 5 Mar 2010

I posted a problem with an ariston microsystem 21 condensing boiler failing to ignite now it seems to have gained a new problem.If the boiler is off on the timer the pressure stays at 1.5 bar as soon as the heating comes on the presure goes up to around 2-2.5 and carries on rising, after about an hour it gets up to about 3.5 and i`m sure would keep going if i didn`t release the pressure.is it about time i got this piece of crap ripped out and replaced(no one seems to want to touch it).Is it just a case of replacing the boiler and what would anyone recommend as a replacement?
THANK GOD SUMMERS ON ITS WAY!!!

combispecialist · 6 Mar 2010

its either expansion vessel needs charging or if it has a flexi hose goin 2 it it may be blocked

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ARISTON MICROSYSTEM 21 PRESSURE KEEPS RISING

wozza180

combispecialist

DIYnot Local

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