my spacesaver 38 has been working fine for years but the last 2 months or so it has not been heating the radiators when you switch it on. it will light and then burn for 2 or 3 mins and then go out .we had a new zone valve actuator and a new thermocouple fitted 2 years ago. all the pipes around the actuator are hot but 'not the radiators .can you help please.

chris, January 2009

Have you checked the pump

Peter, January 2009

if the answer above hasnt worked do your radiators need bleeding?

Andy, January 2009

I dont know your type of boiler or system, but it sounds like your 2 way valve. Does it have a lever on the side? If it does give it a push, does it now heat the other pipes? if it does the valve is shot. there are 2 ways of thinking is it mechanicley shot or is its electicaly shot, if by moving the lever it works, you can replace the gubbins with out distubing the plumbing

Colin, January 2009