One Man Show wrote:

we had a radiator removed and since then the pressure has shot down to
zero, with no hot water as well.
when thr radiator is put back on, and the air is taken out of the
radiators, will the pressure become normal or is there anything else to
take into consideration?
its a valiant 800 series combi boiler.
cheers
See below.
--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html