Switch b disconnect all the wires and connect two wires together. One with the meter on resistance one tapping pairs of wires together.
3 Way Switch Wiring Diagram Diy Electrical Home Electrical
3 way switch wiring not working. 3 way circuits can be a formidable opponent. Using a continuity tester check continuity between the common black terminal and each of the traveler terminals brass colored of each 3 way switch. Thats just not the way its supposed to be is it. At the switch where you found power in step 2 put the other 2 wires you removed from the switch together and wire nut them. The upstairs is dark and as she flips the switch at the bottom of the stairs she howls. What is the wiring pattern of your 3 way switches.
You generally need two people working together answer these questions. So to turn the light on she carefully negotiates the stairs to the top and flips on the switch. Test a 3 way switchturn off power to the switches at the circuit breaker and using a tester make sure power is off. Remove the two 3 way switches so you can access the switch terminalsthe wire connections do not have to be removed. First kill the circuit breaker and be. To id the wires o a 3 way switch all you need are some wire nuts.
Turn power off label the switches a b. The dang 3 way switch isnt working. Disconnect switch and connect all 3 wires together with a wire nut. Turn the power on. Set the electrical tester to the continuity or ohms setting. Touch the probes to the 3 wires removed from the switch until you get a reading on the tester indicating continuity.
For the second 3 way box which two of the three wires attached to the original switch come from the other 3 way. Now go the other switch location.