My 18 year old Potterton Netaheat boiler has been playing up for a few months now.
It switches on but refuses to light, or if it manages to light it switches itself off instantly.
Reading previous posts on google it would seem that other people have had similar problems and most responses have suggested replacing the relay. Does this sound right? Any other possibilities?
Am I correct that the relay is the item marked in red here?
The cost is only around £25 inc P&P from either of these places.
Any advice would be much appreciated.