Originally Posted by kellykate
The old switch .....has 3 BLACK wires, one which is secured to a screw on the switch and the other 2 come out the back of the switch.
Any suggestions.......this dang switch.
Kate, from your description, I assume your switch wiring was similar to this pic.
The wires that come out the back of the switch are pushed into spring loaded connections. To release the wire from the switch there is a small rectangular opening right next to the wire. Take a small slot screwdriver and firmly push the tip into that rectangular opening while at the same time pulling to release the wire.
The push-in wire connection closest to the screw, and the screw, both go the same pole inside the switch. This is done to make it easier for the Electrician to install the switch. For the DIYer it may be easier to use the screw terminals.
When installing the original switch the Electrician connected the AC and the AC Feed wire to one pole of the switch using both methods. I show the AC Input connected to the screw, but it is the same if reversed, i.e. the AC Input can be the push-in wire.
I hope this illustration helps with what Speedy and joed have said.