Can anyone tell me how to rectify the low pressure neon being on on my Worcester 1994 350 Combi Boiler. I Have drained down the system and refilled the system. Bled the radiators and set the water pressure to the correct setting. However the boiler stays in the the low pressure mode. Help!

Tom Spencer, April 2009

sometimes the switch gets clogged with debris when you refill the system, and fails. You will have to replace the switch - you may be able to clean it out but by the time you've done that it's generally faster and less hassle to fit a new one.

Bunslinger, April 2009