Our boiler is knackered. It's never been brilliant. But now when you put the heating on it cuts out after 20 minutes. It's been like that for a while but I've ignored it 'cos it was summer and if I was cold I just put another jumper on.
Peter the Heater fixed it for us last year. Said it was the thermostat. Put a new one on.
Gonna have to ring him again.
Hope we can get away with another new bit and don't need to get a new boiler 'cos I really don't want to have to fork out for a new one....I'll just put 10 jumpers on and reset it every 20 minutes thanks all the same...