Light switch short when switched up and is on when down. 2 black 1 red wire : r/electricians
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3 Way Light Switch Issues | Off-Topic Discussion forum
Three Way Wiring Help Requested - Devices - Hubitat
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home wiring help - replacing light switch with 4 wires (2 red/2 black) | Electricians Forums | Electrical Safety Advice | Talk Electrician Forum
Need help wiring a light switch with two black, two white, two ground, and one red wire which is hot. : r/askanelectrician
3-Way Switch Wiring: A Step-by-Step Guide - Bob Vila
How to wire a light switch with a black, white and red wire - Quora
