High Bar with Baxi 105 SE

[unib]

My Baxi 105 SE which has been fitted for a few months was sounding a little more noisy than it normally does today and when I had a look at it's settings I noticed that the bar dial was right round at the 4 bar indicator, it's generally been around 2 previously - bit concerned – is this a problem as it does say on it that it should operate somewhere between 0.5 and 2.5?

 

[hi-spec plumbing heating]

is it a 4 all the time of only when heating on ?

 

[unib]

The heating has been on, it's off now and the dial is still on 4. The heating hasn't been on until the last day or so, maybe that's got something to do with it?

 

[hi-spec plumbing heating]

check the filling loop under boiler. the valve is not open.

 

[unib]

nope, that's closed

 

[hi-spec plumbing heating]

shut your main stopcock then see if it go's down

 

[unib]

I've turned that off and it's still saying 4 bar

 

[hi-spec plumbing heating]

now release some of the pressure from a rad valve to 1.5 bar

 

[unib]

Getting somewhere, undid the radiator valve, quite a lot of air came out and the pressure had dropped to 2 bar

 

[hi-spec plumbing heating]

can you get it to 1.5 bar at it's highest.
just hold a jug and catch the water

 

[baxpoti]

Expansion vessel needs re-pressuring/replacing

 

[kevplumb]

err 4 bar the prv needs a dose of looking at

 

[unib]

can you get it to 1.5 bar at it's highest.
just hold a jug and catch the water

I've emptied some water out as well as air and it's settled at slightly above 1.5 bar now – so I guess that's a bit more as it should be.

 

[hi-spec plumbing heating]

now run your heating

 

[unib]

Heating's been running now for a few minutes and it's staying at 1.5 bar (in fact it has now dropped down to 1.5 bar rather than just above)

I'll keep my eye on it and if it goes up again I'll call the people who fitted it to have a look.

Cheers for the help!