Could you let me know if you know what f13 is?

Just a minute. I'll get my crystal ball out....Hmmm yes I see it now. Your boiler needs fixing dosen't it? Yes it's comming through now. Your boiler is a big white box on your wall isn't it? Yes that's better. The name on your boiler does it start with a W ?? No... Well what is it called then ?????
How are we supposed to help you if you don't help us ????????
Make and model of boiler at the very least.

M
November 2009