Hi All,
I think I'm having a problem with my combi boiler. The main sympton is that the radiators get hot even when the thermostat isn't calling for heat. Other signs include what I think is excessive noise when the boiler is working. It sounds like it might have air in the system, but when I bleed the tallest radiators I only get water.
I've got a plumber coming round tomorrow to give the boiler a service (it's first since it was installed two years ago; I know, I know, but I only moved in recently!). What sort of problems can I expect him to find/fix?
Thanks for any advice.