I have a 4 year old vaillant turbomax boiler and today i have noticed that the hot water is very intermittent. ill get hot for a few mins and then its just cold water coming through,, central heating isnt that hot either.
there are no errors on the boiler display, anyone got any ideas as to what could be the problem?
there are no errors on the boiler display, anyone got any ideas as to what could be the problem?