Vokera Excell 80SP

pjtiler · 22 Dec 2007

hi guys
i have a problem with my boiler
it keeps loosing pressure with in a 24 hour circle

any ideas

thanks

Agile · 22 Dec 2007

A leak !!!!!!!!!!!!!!!!!!!!!!!

pjtiler · 22 Dec 2007

Agile said:
A leak !!!!!!!!!!!!!!!!!!!!!!!

lol
i checked for leaks
its a boiler fault

gas4you · 22 Dec 2007

If you cannot see any water coming out of the prv discharge pipe then it has to be a leak somewhere.

If you pressurise it to 1 Bar then turn it on ch does the pressure guage rise quickly to over 3 bar and then the prv opens?

If so you need to check the exp vessel charge. See FAQs on here on how to do it.

pjtiler · 22 Dec 2007

gas4you said:
If you cannot see any water coming out of the prv discharge pipe then it has to be a leak somewhere.

If you pressurise it to 1 Bar then turn it on ch does the pressure guage rise quickly to over 3 bar and then the prv opens?

If so you need to check the exp vessel charge. See FAQs on here on how to do it.

cheers dave your a star
where do i find the FAQs ( i,m new round here )

gas4you · 22 Dec 2007

4th down on plumbing and heating main page.

pjtiler · 22 Dec 2007

gas4you said:
4th down on plumbing and heating main page.

thanks again dave
theres a few drops coming out of the pvr pipe
nothing much as far as i can see

pjtiler · 22 Dec 2007

pjtiler said:
gas4you said:

4th down on plumbing and heating main page.

Click to expand...

thanks again dave
theres a few drops coming out of the prv pipe
nothing much as far as i can see

gas4you · 22 Dec 2007

Shouldn't be anything coming out of prv pipe.

Tape a plastic bag over it and leave for a while, this will give you more of an indication of the amount coming out.

pjtiler · 22 Dec 2007

gas4you said:
Shouldn't be anything coming out of prv pipe.

Tape a plastic bag over it and leave for a while, this will give you more of an indication of the amount coming out.

will do

could the valve be passing ??

gas4you · 22 Dec 2007

Yes, over time the spring can become weak and not seal correctly.

pjtiler · 22 Dec 2007

aye your right
there quarter of a pint in 4 hours now in the bag
i am just hoping the valves passing
is there a quick way to check ??

gas4you · 22 Dec 2007

If the pressure has been below 3 bar, or even below 2 bar all this time then it is logically the prv that is knackered.

If the heating has been on and the pressure has been 3 bar or more then it is doing its job and the fault lyes in the boiler somewhere.

pjtiler · 22 Dec 2007

gas4you said:
If the pressure has been below 3 bar, or even below 2 bar all this time then it is logically the prv that is knackered.

If the heating has been on and the pressure has been 3 bar or more then it is doing its job and the fault lyes in the boiler somewhere.

thanks dave i,ll do a full check in the morning

once again thanks for your help and advice

diynot

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Vokera Excell 80SP

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