Yes
Don't do it whilst the system is under pressure.
( The Disappointed Caravanner of the year, Thu 18 Nov 2010, 20:41, 1 reply, 15 years ago)

what does that mean?
do I just turn it off for a bit?

(thanks BTW this is really handy)
( Citizen Cavy Admires your passion for conformity, Thu 18 Nov 2010, 20:42, Reply)

Just saying but you can get info about this off the internet.

( girlinthehole, Thu 18 Nov 2010, 20:44, Reply)

this is true
I was gonna look it up at the weekend
( Citizen Cavy Admires your passion for conformity, Thu 18 Nov 2010, 20:45, Reply)

But then again the internet can answer back to questions you may have.

( girlinthehole, Thu 18 Nov 2010, 20:48, Reply)

Turn it off first
Then bleed.

Do you have a combi boiler? If not I'd leave it for about ten minutes.
( The Disappointed Caravanner of the year, Thu 18 Nov 2010, 20:48, Reply)

combi

( Citizen Cavy Admires your passion for conformity, Thu 18 Nov 2010, 20:50, Reply)

Right.
Turn off, find the right shape on the highest radiator - or the one furthest from the boiler - turn. KEEP THE KEY ON THE SHAPE!

You'll hear a lot of air hissing and that's what you're getting rid of. As soon as the hiss turns to bubble and water starts coming out turn back.
( The Disappointed Caravanner of the year, Thu 18 Nov 2010, 20:54, Reply)

cheers
totally bookmarking this. This is my weekend achieving plan
( Citizen Cavy Admires your passion for conformity, Thu 18 Nov 2010, 20:56, Reply)