Heating pressure

[PositronicRay]

I noticed the heat g pressure was high the other day, 2.5 bar. I checked this morning about 20mins after it came on and its up to 3 bar. Last yr I seem to remember it was steady, around 1.5-2bar.


It's not been touched, or serviced so why the increase? Faulty filling loop valve?


Looks like I've a place to bleed, (the pipe gets hot with the rads) but as I don't want to create a leak, am I better off using a rad?

Edited by PositronicRay on Tuesday 19th November 07:06

[PositronicRay]

I think I've answered my own question.

I took the top off the filling loop valve and using mole grips got another 1/4 turn.

Hope it's OK for now, I'll get it changed in the spring when the boilers serviced. Bleed excess pressure from rad or bleed pipe?

[PositronicRay]

There probably is another filling loop valve, behind all the boxing,

I've bled a rad, hot pressure down to 2.2bar. Off to work now so don't want to fk about too much.

Edited by PositronicRay on Tuesday 19th November 07:49

[PositronicRay]

Seems okay now.

1.5 bar cold 2.0 warm.

Incidentally the gurgling we experienced (and didn't resolve) prior to over pressurisation has disappeared.

I'll get the filling loop valve changed when we service the system in the spring.

Thanks all.