I need some help please!
I just replaced 2 sets of 3 way toggle switches with 2 sets of 3-way dimmers (both in double electrical boxes). One set in the centerhall entranceway and the other set at the top of the stairway. WIth the upstairs light both dimmers light the light fine. With the downstairs light, however, only the upstairs dimmer fully illuminates the light, the downstairs dimmer only illuminates it half way.
My question is: did I most likely wire one the dimmers incorrectly or is the downstairs dimmer defective.
Thanks in advance for any assistance that anyone can provide.