Thanks for all your comments very much appreciated - i will get the chemicals out and get this clean lol obviously with my mask goggles and rubber gloves ;-)
Hi,
I was windering if anyone could assist me with understanding what the blocking code bl 12 means on my Atag combi boiler. I have checked in the installation and servicing instructions, but this code is not listed.
It maybe a coincidence but it would appear that this code is displayed when...