My kitchen fan/light is wired with separate switches. Single wall switch for fan and 3 way switches for light. I installed 3 way dimmer switches for the light but they won’t dim. They are either full bright or off when using the dimmer control. I used the same type switch in another location and it works. Do I need a special switch for this application?

A three way switch can have only one dimmer switch in the circuit. The other switch(es) must be a regular 3(or4) way.

What kind of dimmers did you use? What kind of lamps? Multi location dimmers are not usually ones you will see at Home Depot. For standard off the shelf dimmers you can only have one location dimmed.

The lights are led dimmable. The dimmers are Leviton 6674.

quote:

Originally posted by 9mmnut:
The lights are led dimmable. The dimmers are Leviton 6674.

Those are not multi location dimmers. So programing is not the issue. You can only have a single dimmer installed, not dimmers, so you need to remove one of the dimmers. Having two dimmers would not prevent them from dimming so that's not the problem I don't think. I'd just replace one of the dimmers with a regular switch and return both then buy a single new unit.

The only thing I can think of is either you shorted out or previous customer did then returned it. Did you wire it hot or have a breaker trip restoring power? If a ground touched any of the wires while energized then the dimmers stop dimming.

Thanks. I changed out one of the dimmer switches to a regular 3 way. Works now.