Electrical Wiring in the Home/adjacent switch doesn't work
I changed a 3-way switch to a 3-way dimmer in a 4 gang junction box. I turned off the breaker before starting but apparently that breaker did not apply to all the switches in the box. There was a spark between the switch I was changing and the adjacent switch.
Now the light controlled by the adjacent 3-way switch doesn't work. I have checked the other breakers and they seem to be fine.
What do I do next to find where the damage is and repair it?
Probably a wire burned through somewhere in the circuit. If it is only the light that does not work, you only need to check the switches and lights. Check all wire nuts, and if the wires are pushed in the back of the switches, move the wire to the screws on the side. New switches are usually a dollar or two, so you may want to replace them and see if that helps.
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