The wire that registers voltage is the hot wire and the common wire for this box. In this case the traveler wire and load wire were swapped and repairing the circuit involved switching them back.

Replacing 3way Switch With Motion Sensor Doityourself Com
Leviton 3 way switch troubleshooting. You will need to locate the ground wire and connect that to the switch as well as to the ground on the junction box. If that doesnt work for you take a picture of the switch and connections and another of wires in fan box and post here. In this step you will be turning the power back on do not touch any of the wires previously. If one of the two 3 way switches toggles the lights on and off the other 3 way switch has probably failed. Then the two induvidual switch poles are the silver screws. Toggle one switch to see if it turns the light on and off.
Toggle each switch until the light come on. 15a 120277vac installation instructions pk 93604 10 00 0a standard style switch decora style switch warnings and cautions. Usually when a 3 way switch fails lights can be toggled on and off at one switch but not the other. 5641 to be installed andor used in accordance with appropriate electrical codes and regulations. How to troubleshoot an improperly wired 3 way switch. Terminology and how a 3 way system works.
Turn off the power at the circuit breaker remove the 3 wires from each of the switches and make sure that none are touching anything. With jumper intact you connect the hot feed to a either screw of the jumper which i belive are brass colored screws. Single line hot single pole and 3 way switch standard style cat. 3 way switch troubleshooting. Multiple switches may be located at several approaches to a room in order to turn the rooms lights on or off from any one of those locations. Follow these steps to find which switch is bad.
Connect fan motor to one and fan light to the other. 5241 decora style cat. Set your multimeter to at least 110 volts. The ground wire is often white green or bare. The ground wire is what prevents stray current from electrocuting your family and possessions. Common problem 3 failing to ground the switch.
There are many ways that a three way switch can be wired but usually power or the light fixture connect to the load side of the switch and traveler wires run between traveler screws on both switches. Hold one of the probes on a known ground such as a metal outlet box or a bare ground wire. They do this by continuing hotnesstoward the light on two alternate paths wires called travelers. Touch the other probe to the colored wires one by one.