Nice Removing A Three Way Switch
Then use a voltage tester to make sure that the circuit is dead.
Removing a three way switch. You want to tie together the one traveler you are now using and the black to the load and you remove the switch. Start with the three way switch that will be removed. Unscrew the switch plate cover.
Unscrew the switch from the electrical box and pull it out with the wires still. Turn off the power to the circuit at the breaker box. Unscrew and remove the switch plate.
Turn off the power to the switch at the circuit or fuse panel. Turn off the power to the outlet at the fuse box or breaker panel. How to change a 3 way switch to 2 way remove the three way switch from the circuit.
With the voltmeter verify that the power. At the second three way switch there should be the two travelers red coming into it and the load going to the light black. Remove the switch from the switch box.
To replace a three way switch follow these steps.