no pressure

[sarah24]

Had to remove 2 radiators to replaster the downstairs walls. When refiring the boiler (a VokeraLinea 24 situated upstairs) it has taken a long time to put any heat back into the rads. the upstairs ones now get hot, the two downstairs lukewarmish. The pressure on the boiler is very low but when I try to re-store the pressure there is no usual sound of the water gushing into the system. I have bled all rads (exept one that the blooming stupid bit had lost its corners so I can't release it! Typical!) Is it just a case of letting the system adjust itself with a bit of time ie am I just being impatient. There were a few gurgles in the pipe/rad downstairs that I can't bleed, but certainly no banging in the pipes etc. I can get hot water from the system.

Any ideas? Is this just normal for the system to take a long time to re-fil? Any tips would be appreciated! Thanks

 

[wonderb0y]

so you cant bleed the one youve put back on becuase youve lost the air vent? or is this another rad?

 

[sarah24]

of the two rads taken off I have bled one and it was ok. no air at all. The other one I can't bleed because the little key will not grip on the tap because all the square sides have warn away and it simply just keeps going around and not un-doing!

 

[Bahco]

You will need to replace this bleed screw or the rad will not get up to temp.

You can buy them at plum mercs. You may have to drill the old one out tho

 

[sarah24]

Boiler now has pressure but won't stop increasing. There are no rads on etc but it has increased overnight from 2.5 (when we noticed it had carried on increasing) to 4 this am when I got up. Is it going to blow up?

 

[chr15]

Boiler now has pressure but won't stop increasing. There are no rads on etc but it has increased overnight from 2.5 (when we noticed it had carried on increasing) to 4 this am when I got up. Is it going to blow up?

If the pressure is still increasing then your filling loop valve is probably still open slightly-is it the type with a plastic handle on?
If so you would do better to take the handle off and shut the valve with a small adjustable spanner cos them valve handles are made of plastic and they tend to get mangled when the valve gets stiff to turn.

 

[sarah24]

Hi,
When we took the filling loop off the tap did close the flow of water off completely so would this still be the problem? Thanks

 

[chr15]

Hi,
When we took the filling loop off the tap did close the flow of water off completely so would this still be the problem? Thanks

Well if the filling loop is disconnected then that isnt the problem-if you're right and the pressure has gone up to 4 bar then you need to get an RGI to look at it cos the pressure relief valve should open around 3 bar and if it isnt then you could be in for trouble.