Vaillant Turbo Max Heating question

[Jagurxjsport]

Dear all, I think I am having problems with my central heating. I have a Vaillant Turbo Max Plus. I have had it installed since 2002 without any serious problems and only once did it stop working because of a power cut. Since March this year the problem I seem to have is that the radiators seems to come on or be constantly warm even though the timer for the boiler is not on. I have checked the timer and it is set to the correct time. I have hot running water whenever I need so there are no problems there. Someone told me that is could be the frost protection. I have not noticed the radiators come on this November to February and it was cold then, so is it me worrying about nothing or do I actually have a fault with my boiler.
I would be grateful if someone could help me with this issue.
Many thanks.
John

 

[stoker122]

Could be heat circulating round heating when there is a hot water demand.
Call a GSR to take a look mate.

 

[Jagurxjsport]

I have checked the fault settings and it saye S 07, which is "Pump over run (heating operation), i have no idea what that is.

 

[stoker122]

That's not a fault it is what the boiler is doing at the time.
Post a request for a GSR and I'm sure someone will be able to sort it for you.