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 maintenance 11-16-2004 07:20 AM

three way switch

I have a hallway with one light and two three way switches on either end. I am changing the fixture to recessed light and adding two additional lights. The power is fed to the light fixture first. 12/3 conductor between the two switches only. From power to light to light to first switch is 12/2.
PROBLEM:
Lights are dim when adding additional lights. When only one light is in the circuit, brightness is fine.
Any suggestions?

 Hammertime 11-16-2004 10:08 PM

Quote:
 Originally Posted by maintenance I have a hallway with one light and two three way switches on either end. I am changing the fixture to recessed light and adding two additional lights. The power is fed to the light fixture first. 12/3 conductor between the two switches only. From power to light to light to first switch is 12/2. PROBLEM: Lights are dim when adding additional lights. When only one light is in the circuit, brightness is fine. Any suggestions?

What I would do is test the voltage at the first switch. If it's at normal voltage with voltage drop allowances then I would test the first light. The voltage drop might be severly at a low reading. How far is the switch from the panel. Do you know if there is 12/3 from the panel. I would see if i could check that as well cause there might be 14 wire from the panel and 12 at the switches. But, again test the power at the switch and then from there the light. Perhaps you can put in lower wattage bulbs to try and even it out. There's other things it could be but I would start there and see what the voltage is and how bad the drop might be.

 Unregistered 11-18-2004 05:48 AM

There is 12/2 from the panel. The switch is approx. 12' from the panel. I am getting 120 at the switch and at the first light.

 Hammertime 11-18-2004 07:21 AM

Quote:
 Originally Posted by Unregistered There is 12/2 from the panel. The switch is approx. 12' from the panel. I am getting 120 at the switch and at the first light.

Keep testing on to the next light. You must have somekind of voltage drop somewhere unless the lights are faulty. Make sure all your connections are secure and not loose. So far, you're okay from the switch to the first light. So from there you know you're okay. Not much more to test to pinpoint your problem. Make sure the bulbs are working okay in to lights as well. Test them in another light. Test the voltage to the first light that is Dim. If the first light in line is bright and the following one's are dim then check the first dim light your problem might lie in the hookup for power at the first light.

 Unregistered 11-19-2004 02:22 AM

If power is fed to the first light, then down to the switch and 3-wire betweent the switches....the hot should be fed down the 2-wire on the white, bypassing the first switch feeding hot on white to the second switch. Make sure you are actually on the switch leg and neutral like the first light was. If you interuppted the hot going down on white to the switch you are actually series connected causing the voltage drop.

 Jerry 12-24-2004 12:12 AM

3 -way switch

After hooking up a 3-way switch to a 3-way switch that operates a light . I cannot get the light to work properly unless I connect 1 of the two light wires to the ground in the light box . what should I have connected differently or is this o.k.

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