Thanks for quick response
No i am currently residing at Birkenhead, on the Wirral Pennisular.
My boiler is a potterton suprima 40 L model.
The temperature setting is always left on maximum.
The boiler still locks out and needs resetting manually.
I have read other comments on this forum...
I bought my house in June 2008, it was newly built in 2004.
It has a potterton 40L boiler and a gledhill boiler mate 2000 thermal store installed.
We where told by the previous owners, for best heating/hotwater results, set the potterton boiler temperature dial switch always to maximum.
Also...