I went to install 3 caseta luton dimmer switches in my bathroom, and found that I don’t understand the existing wiring which has a bank of 4 switches.
There are two dimmers and two on/off switches.
- dimmer - controls a bank of overhead LED lights
- dimmer - controls a second bank of overhead LED lights
- on/off switch controls pendant lights over bathtub
- on/off switch controls a fan over shower (that I don't want to touch)
I want to install the dimmers in #1-3, and leave the on/off for the fan alone. The issue is that their doesn’t seem to be any ground wires attached to the existing switches. The lutron dimmers are very simple, one green wire for ground and two black wires that usually connect to either existing wire, but the existing set up is confusing.
I’m hoping that someone might be able to clear this up for me. I’ve added two photos with description.
is a Leviton P2W for first bank of overhead LED lights. Red wire (a) goes into the box, 2nd red wire (b) is dead (tag says use for 3-way switches), green wire (c) for ground? is cut off, black wire (d) is connected to black wire in #2 and #3 with orange connector (e)
is a Leviton P2W for 2nd bank of overhead LED lights. Red wire (f1) connects to black wire (f3) with orange connector (f2), then goes into box. 2nd red (below picture) is dead like #1. black wire (g) is joined with orange connector (e) to black wire from #1, and black wire from #3.
is a leviton on/off switch for pendant lights over bath tub. the black wire (h) goes to box, black wire on lower screw (i) goes to orange connector with #1 & #3, and 3rd black wire (j) comes from middle of switch, and goes to the middle of #4 switch.
(see second photo) is a leviton on/off switch for the fan over the shower. black wire on top (k) screw goes to box, two black wires (L) on bottom screw, both go into box, 4th black wire (m) goes from middle of switch and connects to middle of switch on #3.