De-pressurise a Baxi 35/80

plumbum

## Title correction - Re-pressurise a Baxi 35/80 ##

Hi Folks,

I recently bled some of my radiators, however since then, the boiler makes quite a lot of noise when heating is turned on. It was only then I noticed that the pressure is about 0.3 / 0.4 bar.

I have a Baxi 35/80, but I'm having trouble finding the filling loop.

In the below photo, there are 2 valves which I've marked. The bottom one definitely can be opened/loosened, however the top one is not budging easily.

Is it safe to go ahead and try loosing these a bit? As you can on the wall behind, it is marked 'F', which I'm guessing is for filling but I've no idea.

https://imgur.com/gXdqntF

Thanks

DGOBS

Below the bottom 'red box' you see what looks like a slotted screw, thats the valve,

Across the pipe is closed, in line with the pipe is open.

Make sure the 'hand nuts' in both your red boxes are tight before you open, or you may get wet!

plumbum

DGOBS wrote: »

Below the bottom 'red box' you see what looks like a slotted screw, thats the valve,

Across the pipe is closed, in line with the pipe is open.

Make sure the 'hand nuts' in both your red boxes are tight before you open, or you may get wet!

Edit - nevermind, I misread your suggestion.

Made sure to tighten the hand-nuts, and opened the valve slightly to get the pressure back up.

Thanks a ton sir!

clarker92

Hi All
My baxi boiler is showing low pressure and most of the rads in the apartment aren't heating or are barely heating, how do I repressurize the boiler, I've attached 2 picture too help explain.
Any help would be much appreciated!
Thanks