I have a very OLD wiring so it isn't clear how to install my new switch per the provided wiring diagram.
I have 2 COMBINATION SWITCHES, each has a switch and a pilot light on them housed in a single junction box. The old switches are brown, I want to replace them with white switches.
The old switches were wired with 3 wires, black, white, plain copper. I don't know that the plain cooper was to a ground screw or not. In the old switch the copper wire was attached to a screw that WAS NOT GREEN but was a single screw on the right side of the old switch.
I don't know how the old switch compares to the new switch. I only know that the old switch was wired with the black and white wire on the top/bottom of the two screws on the left side of the switch and the plain copper wire was wired to the one screw on the right side of the switch.
I wired the 1st new replacement switch as follows:
- Black Wire to
Brass Screwon switch
- White Wire to
Silver Screwon switch
- Plain Copper Wire to
I replaced the first old switch as above in 1, 2, 3 with the new switch. Turned on power, switch worked as expected (pilot shows on when the switch is on, pilot off when switch off).
Then I replace the 2nd switch exactly at the first and it tripped the circuit breaker.
How do I wire using the 3 existing wires (Black, White, Copper) to the new 2nd switch in order without causing the circuit breaker to trip when it is used?