Central heating

[thompsat43]

I have a budrus 500-245 boiler i over filled the pressure using the loop the pressure is showing 3.5 recommended 1.5 the over flow pipe outside runs water when bolier is in use how do i lower the pressure

[buildersmate]

Bleed water out of one of the rads until the pressure falls back to 1.5 bar on the gauge. A 2-person job - one to watch the gauge, one to bleed the rad. Probably a couple of cups worth to come out.

[gucciman]

turn the boiler off, open the bleed vent on a downstairs rad and let the water spurt into a bowl, either check the pressure guage every litre of water or so or if you do drain too much simply add some more water via the filling loop.

[thompsat43]

thanks for information to all the loop pipe valve was stuck open so it kept filling via the loop everytime i drained the system i changed the valve and all is ok