We were testing pipes as took a rad off and wanted to make sure there was no leaks. Yes it's the ch pump light at the top where the controls are. Do we need a plumber then?
Hi
We are having a slightly issue with our Combi boiler at the moment, The hot water is working fine however the central heating isn't. It looks as though the CH light isn't lit however the demand light is. Through looking at the manual for the boiler it states I need to check the non-return...