High pressure, combi boiler, how to release?

[crissybwoy]

Hi, first post here, I've been to these forums before but never needed to post as i've found the info I needed before but cant find what I need this time.

I recently moved into a house, it has a Vokera Maxin combi boiler. Had a problem with one of the rads (it fell off the wall) but have sorted that out, now the boiler has pressure going past 3 bar (after sorting the rad I set set the pressure a 1 bar). Is there any way of me sorting this myself or should I be calling out a plumber.
Is my boiler going to explode?
Cheers
Crissy

:EDIT: I noticed the high pressure when the hot tap in upstairs bathroom stopped working.

[Bahco]

Has the filling loop been removed?

Reduce pressure by draining some water out of a drain point under a rad.

If pressure keeps rising, suspect the pressure vessel needs recharging.

[oilman]

BAHCO wrote:

...........Reduce pressure by draining some water out of a drain point under a rad.

It's easier to use the pressure relief valve, and if it leaks afterwards, either the water is dirty or the valve is duff. Replace it. If the expansion vessel needs attention, the valve is probably operating now and again anyway.

[crissybwoy]

Cheers for the replies! Where would I find a pressure release valve ?
Cheers!

[kevplumb]

it's the bit of brass with the red plastic cap

[crissybwoy]

Cheers for that, found the brass bit with the red cap inside the flap on the boiler front that you have to unscrew. Good job I've seen some heating engineers work on similar boilers or I would of had to ask where the pressure release valve was!
Cheers for all your help. Boiler now sorted!
Crissy

[PEDANTICVINDICTIVEMAN]

Thatl'l be £5000.00 callout plus parts, send money to any local criminal, the numbers are in the yellow pages uner CORGI gas fitters.