I replaced an old ceiling light fixture with a chandelier. The ceiling box has 4 wires: ground, white, black, and red. I connected all to corresponding colors except red (was not connected in old setup) I left capped off.

The dimmer switch used to work for old fixture but after replacing fixture, the new light is on but doesn't turn off and dimmer switch doesn't function.

Details: switch panel is a two switch setup (see pic) with Left switch (Lutron Maestro MAW-600) controlling the ceiling fixture I replaced and the Right switch (Lutron Maestro MAW 603) controlling the hallway lights (which work fine even after new ceiling light installed).

The picture with ceiling fixture shows my index finger (leftmost finger) pointing to fixture cables and my middle finger (rightmost finger) showing outlet box cables.

Please help!! I feel like this is something really simple I'm overlooking, and I don't have much electrical experience but am determined to figure it out!

 

Are you using LED bulbs? Is the red from the light's casble in the switch box also capped off?

 

The new chandelier I installed uses bulbs compatible with ELV dimmers. I just realized the Lutron MAW-600 I have is probably not compatible, so I bought a Lutron Skylark ELV dimmer and will install that instead. Hopefully it works.

To answer your question Ray2047 (thanks for your response), yes the red wire from the chandelier coming out of the switch box is capped off as well.

 

Is the chandelier on the single pole or three way dimmer ?
Usually... even if in-compatible.... the dimmer will still shut the lights off.

 

The chandelier is on the single pole, but the way the switch was set up is that the green ground wire and black wire (brass screw) was connected directly to the 3way switch next to it (not to the wires coming out of wall). I'm not sure how that set up worked before but it did. However, with the new chandelier, it always stays on.

 

If you remove the switched hot wire from the dimmer and the lights go out you'll know it's a dimmer problem.

 

Ok I will try that when I get home tonight. Thanks so much for your responses!