Hera   10 #1 Posted November 19, 2010 The house needs re-wiring : in the meantime I'm patching up, here and there. The latest is the bathroom light : it packed up and I found that there was about 90 volts across the wires, at the light. I changed the ceiling pull switch -antique - and put in a 2 way switch. At the light there are 1 black wire and 2 joined black wires - the same as at the switch. I put the single wire in common and the 2 joined wires in L1. Now, in one position I can use the bedroom lights and in the other, I cannot. The bathroom light says on in both positions ! Share this post Link to post Share on other sites Share this content via...