Thanks. I know you don't have much information from me, but can you please be more specific? All he did was change the switch at one end. It worked fine before that. Thanks for your advice.
Hi:
We have a hallway with a three way circuit and two lights. My husband changed one of the light switches and now the synchronization doesn't work between them. By this I mean that or both of the light switches won't turn the lights on unless you turn the other switch off or on first. Any...