02-11-2017, 10:21 PM
Pull the switches and see if there's a red wire (standard wiring color) or the switch is marked 3-way (both need to be). That diagram is misleading -- the red wire (traveler) only has to run between the two switches and does nothing with the load (light/fan/whatever); it provides power to allow the other switch to oppositely control the load. The two loads should be wired in parallel, so having one missing should not matter.