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Mend Ariston Micro Genus

How can I fix my ariston micro genus he 32 mffi boiler?

The boiler is just over a year old and out of warranty-the pressure keeps rising and I have to bleed the radiator down more than twice a day to keep it below 3. I'm worried about a pipe bursting or something exploding!

Liz
May 2010
AristonHeating, Home Heating SystemsAriston Micro Genus
Hey John
I know nothing about boilers or anything I'm sorry, how do I disconnect the pressure filling loop and what do you mean by passing?

Liz
May 2010
could be the pressure filling loop is passing disconnect the loop to see.

john
May 2010
Oops-sorry, meant to say 'by' a level of 11-1.5 daily not to! It keeps going up-I drain it down to about 1 and by morning it's up to 2 and by evening it's at 3 which is why I'm having to drain the radiator.

Liz
May 2010
Hi Craig

The pressure reading depends on whether I have just drained the radiator down-usually between 1 to 1.2 and when the heating is on, it used to go up to about 2.0 when the boiler was working properly. Now, the pressure keeps increasing to a level of about 1-1.5 bar daily.
I'm also only using the heating for about 2 hours first thing in the morning.

Liz
May 2010
Hi Liz

What is the pressure reading when the boiler is cold and turned off?. It should be 1 bar to about 1.2 bar. When the boiler has been fired for about 15-30 min would expect pressure to be about 1.8-2.0 bar.

craig
May 2010

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Ariston Boiler Pressure High - Fix & Advice