Ideal combi boiler pressure?

[yeleek]

Hi,

Blooming cold at the moment and tho rads are warm/hot have noticed our combi boiler pressure is maybe at .75 - is that a problem? Have read it should be 1 - 1.5.

What are the symptoms of low boiler pressure?

Thank you

Ben

 

[chapmandb]

On most systems, the working pressure should be between 1.5 and 2 bar (set at 1 bar when cold) . May just need a top up via the feed loop.

If you repressurise and over a few days loose pressure, you may have a leak somewhere in the system. If it stays stable, then no problem.

 

[gas4you]

Noise, eg banging and heating not working properly.

 

[yeleek]

Hi,

Ok thanks...

At hot its just below 1... at cold it drops to maybe .5.

Sounds like it needs topping up...

Ta

 

[bengasman]

Top it up when the system is fully warm to about 2, this way you will not put too much in