Depending on your boiler there should be a filling loop with a valve under the boiler to re pressurise it. fill it to just over 1 bar and reset the boiler
www.findaplumber.co.uk 25 years corgi registered
January 2008
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.