I'm trying to debug a problematic 3-way switch in the addition I'm building. It controls a duct blower for a duct that runs from above the fireplace on the 1st floor, to the bedroom on the 2nd floor.
The setup is such that the power comes into one box, the wires go through the fan, then to the 2nd box. I'm working off this diagram:
How To Install a 3-way Switch Option #3 :: Home Improvement Web
When I first had it set up, the switches would only work if the other switch was in the "on" position - kind of like the switches were wired in series. I figured out that I had the black wires reversed on the switch on the left side of the diagram. I've checked the rest of the wiring at both switches and the load (fan) and it appears to be correct WRT the linked diagram.
Now, I can turn the unit on/off with the left switch, but the right switch trips the breaker when I throw it?!?!
More info - this is on an arc-fault breaker - I'm going to swap it for a regular and see if that matters. And the fan has a largish capacitor in it.
Any ideas?
The setup is such that the power comes into one box, the wires go through the fan, then to the 2nd box. I'm working off this diagram:
How To Install a 3-way Switch Option #3 :: Home Improvement Web
When I first had it set up, the switches would only work if the other switch was in the "on" position - kind of like the switches were wired in series. I figured out that I had the black wires reversed on the switch on the left side of the diagram. I've checked the rest of the wiring at both switches and the load (fan) and it appears to be correct WRT the linked diagram.
Now, I can turn the unit on/off with the left switch, but the right switch trips the breaker when I throw it?!?!
More info - this is on an arc-fault breaker - I'm going to swap it for a regular and see if that matters. And the fan has a largish capacitor in it.
Any ideas?