GE Jasco 12723/12724 4 way switch install only working on 2 switches

[ritchierich (Michael)]

Maybe this post of mine from December will help you:

4-way wiring GE On/Off Switch

Ok thank you. Same setup I had. Box 1 needs your master switch. Remove the white wire from the bundle of black wires, this will become your neutral for the Aux switches. Get a small wire and add that to that black wire bundle, this becomes your line. Get a small white wire and add that to your neutral bundle, this becomes your neutral Cap black wire that is in same wire as your white wire taped black, you don’t need it. Then hook up wires to your switch: a. New small white wire and black taped white wire to neutral. You can remove tape if you want to since it’s no longer a positive wire. b. New small black wire to line. c. Other black wire from 3 way to your load, not one you capped d. Red wire from 3 way to your traveler You can turn back on power and test that this switch now wo…