Is there pressure in the system? Check the pressure gauge on the boiler and top up if needed.
Do your radiators heat up? If not then I would say most likely a siezed/faulty pump.
Could really be any number of things, blockage in heat exchanger, wrong gas/air mix.
Difficult to be 100% sure without hearing the noise.
http://www.upperplumbers.co.uk/plumbing.html
Yarick June 2012 |
may be a blockage
Ian January 2010 |