u/Shithouse_Chungus

Hi folks, I have semi-recently bought a T2 bay window which has an electrical hookup but I can’t for the life of me work out how to connect it. The dust cap for the female connector doesn’t have any space to slot into as shown on most videos I’ve seen on this. Is there something I’m missing here? Any advice would be greatly appreciated and I’ve attached a photo to show what I mean.