I added a light in my basement controlled by a pair of 3-way switches. It's a new circuit. Things are wired as shown in the following diagrams.
The problem I have is that, regardless of the state of the switches, there is always some power to the light. Two of the four up/down switch combinations result in full power. The other two combinations result in a reduced amount (i.e. approximately one-third) of power.
I have quadruple checked the wiring and can't find anything wrong. I've also swapped out each switch one at a time to rule out a faulty switch. I just can't figure it out.
The problem I have is that, regardless of the state of the switches, there is always some power to the light. Two of the four up/down switch combinations result in full power. The other two combinations result in a reduced amount (i.e. approximately one-third) of power.
I have quadruple checked the wiring and can't find anything wrong. I've also swapped out each switch one at a time to rule out a faulty switch. I just can't figure it out.