Newly installed Leviton dimmer switch humming at the switch

The height you hang your chandelier above your kitchen tabledepends on the wattage of the light bulbs and the of the chandelier. If you are using lower wattage light bulbs,you should hang the fixture about 2.5 feet above the center of your dining roomtable. If you are using higher wattagebulbs, I suggest hanging it 3 feet about the table so it is not too bright.

Just tripping the breaker should no affect your dimmer unless maybe malfunctioning or wired incorrectly or loose connection. It is hard to wire incorrectly, for there should only be two wires attached to the dimmer? Replace dimmer and make sure wiring is correct if not sure about wiring yourself contact local electrician for your safety. There are very good instructions inside the switch packages, make sure to buy a quality switch, Leviton is a good name I would lean towards faulty switch or loose connection but I'm not there. Good Luck Karen....

You miswired the switch. One of your black wires is misplaced.

Sounds like that dimmer you ruined
You must turn off power when replacing
And test the wires

Look at 3-way drawing in 6633 manual.
Notice that device has to be installed to Hot wire.
Only one of your 3-way switches will have the Hot wire.

Change device with other 3-way switch.
Make careful note of which wire connects to dark-colored screw. This is the common screw.

The Leviton 6681 is a push-button rotary-type incandescent dimmer with 600Watt capacity

If you have incandescent bulbs, the dimmer should work.
If the dimmer has different color wires, try reversing the wires.
If the dimmer replaced a 3-way switch, then this is not the right dimmer.
If you have compact florescent bulbs, you need a dimmer that also dims florescent.

http://www.google.com/products/catalog
Link shows the Leviton 6673 incandescent and florescent dimmer

But you also need dimmable compact florescent bulbs.
http://www.amazon.com/DIMMABLE-COMPACT-FLUORESCENT-LIGHT-SPIRAL/dp/B0014B84ZM

As a general rule for timers and dimmers:

The Black dimmer wire connects to black hot wire coming from breaker (122V line)
The red dimmer wire connects to Load (wire going to chandelier)

The wall red wire that is capped could be a couple different things. a) It could go to a second switch that was used to control the chandelier. b) it could be another wire that goes to same ceiling box as chandelier to be used to control a fan, except you don't have a fan. In the second case, if you install a fan with a light, you could control fan and light separately.

The green is a ground wire that connects to bare copper wire in box. The bare copper connect back to main breaker box on the Neutral busbar.
White wires that are twisted together inside your light switch box also connect back to to main breaker box on the Neutral busbar.
The ground wire and neutral are a redundant safety system to protect you from electrical devices and appliances that have 'shorted'
The black hot wire connects back to the circuit breaker.

For example, each circuit breaker controls one area of household lighting. The black white and copper wires leave breaker box in a single romex cable. The romex travels to a junction box in the area where the lights are located. The junction box is usually a switch box or a ceiling box. From the junction box, the romex travels to each other switch, light and receptacle box in the area. So each box has 1 hot and 1 neutral and 1 ground that is connected in a line that leads back to breaker box.

Here's a couple pages that make home wiring easier to understand:
http://waterheatertimer.org/See-inside-main-breaker-box.html
http://waterheatertimer.org/240-v-water-heater-circuit.html
http://waterheatertimer.org/Install-owb.html

It could be how you have it wired. 2 way switches can be tricky. One of switches will have a wire run to the chandelier and this is where your dimmer should go. Here's a link to a explanation of 2 way wiring. Hopefully this will help. If you want to check to see if it is the bulbs, you could put in non energy efficient bulbs although I think it's another problem. If it was the bulbs, the dimmer would at least turn on the energy efficient bulbs in the low position. Good luck!

Link to 2 way switch diagram

http://2wayswitch.com/2-way-switch-wiring-diagram/

It depends how high your ceiling is and the size of the chandelier. If your dining room is eight feet tall, hang the chandelier 27 to 36 inches above the table.

Visit www.metropolitandecor.com and ask their lighting experts for more info.

What sort of light is it , dimmer switches normally only work on Incandescent type lights not flourescent type.

Otherwise it sounds as if the dimmer function is faulty.