Recent content by mdbalson

The 2 blues are your neutrals which the blues on your light go to. The blue wire with brown sleeving is the switched live which goes to the browns of the light The brown stay connected together with no cables from the light connected. The green/yellows go to the green/yellow of the light.

Red to A (Live in) Yellow to B (Switched Live/Live out to heating) Blue not required for new stat G/Y not required for new stat Put blue in a terminal block Put G/Y in a terminal block

Yes Air Conditioning and Refrigeration, you have to be F-Gas Certified to work on them

OK, it looks like there could be a fault with the Kingspan box, or a fuse inside the Kingspan box which is blown.

Have you check the above?

Could the supply to this DB be controlled by a timeclock or light sensor and only be on at night, as all the other mcbs supply outside lights. It could be that the DB is not powered up at the moment in the daytime. Check if the lights powered off this DB are working at the moment