3-way switch
#1

We installed a dimmer switch to our dining room light. We didn't know this was a 3 way switch until we discovered that another light switch on the same circuit didn't work unless the new switch was turned off. We need to have the dimmer switch be a normal switch, just controlling the dining room light. Is there a way to turn the 3 way switch into a normal switch or do we have to buy a new non-3-way dimmer switch? Thanks.
#3

Gary is correct, but of course this isn't all you need to know. I think your problems with the other light switch is that you wired the feed-through power to the second traveller. So when you disconnect this second traveller (i.e., the second brass screw), be sure to reconnect it to the line side hot wire (using a pig-tail), to which it was probably connected before you installed the dimmer.
To do all this right, you'll need to figure out the purpose of all three black wires in your box: the line, the load, and the switched power. If you have no other way, you can do this by experimentation.
Good luck, and don't kill yourself.
To do all this right, you'll need to figure out the purpose of all three black wires in your box: the line, the load, and the switched power. If you have no other way, you can do this by experimentation.
Good luck, and don't kill yourself.