What you are showing us in the first picture is a 4 way switch. You can install the dimmer you show in one of the other 2 locations that are three way, but not this one.
Adding a dimmer to a 3 way switch with 5 wires/3 black.?
I'm trying to replace a 3 way switch with a dimmer. I have been learning as I go, but bought a few books to help with this. I don't see the answer in the books or when I searched here.
The first picture is the switch I removed, (that wire was pushed in and came out when I pulled on the switch). I have three black wires a red wire and a ground wire. Between the two black wires on the bottom of the switch, on the switch itself, it does say COMMON. There is no screw option opposite that black screw, just another brass screw at top.
The second picture is the Leviton decora slide dimmer 6674. I have installed a few of these so far, but this is the first and only 3 way going in. I know the green is ground. The red with the tag is supposed to only be used in a 3 way install. From the directions the remaining black and red can be interchanged to the two black wires, line or load.
My guess is that I use a wire nut and combine the two black wires (that are still fully seated) along with either black or red off the dimmer. The green is ground, the red wire from the dimmer goes to the black wire that came out of the switch, and the dimmer's red wire with tag goes to the switches red wire.
I have a multimeter if I need to test anything. There are three light sockets wired on this switch if that matters.
EDIT: I went and pulled the other switch on this circuit just to see, and it has one less wire in it. In the first pic, the bottom wire on the "far side" is not there. That's the one spot that has a push through, but no screw terminal.
The first picture is the switch I removed, (that wire was pushed in and came out when I pulled on the switch). I have three black wires a red wire and a ground wire. Between the two black wires on the bottom of the switch, on the switch itself, it does say COMMON. There is no screw option opposite that black screw, just another brass screw at top.
The second picture is the Leviton decora slide dimmer 6674. I have installed a few of these so far, but this is the first and only 3 way going in. I know the green is ground. The red with the tag is supposed to only be used in a 3 way install. From the directions the remaining black and red can be interchanged to the two black wires, line or load.
My guess is that I use a wire nut and combine the two black wires (that are still fully seated) along with either black or red off the dimmer. The green is ground, the red wire from the dimmer goes to the black wire that came out of the switch, and the dimmer's red wire with tag goes to the switches red wire.
I have a multimeter if I need to test anything. There are three light sockets wired on this switch if that matters.
EDIT: I went and pulled the other switch on this circuit just to see, and it has one less wire in it. In the first pic, the bottom wire on the "far side" is not there. That's the one spot that has a push through, but no screw terminal.
