Return to the Electrical Wiring Forum | Post a Follow-Up

 o
Hanging light dead

Posted by marysbob (My Page) on
Tue, Jan 26, 10 at 14:15

Have a hanging light in the kitchen which has 8 25W bulbs. It is controlled from two switches at either end of the kitchen. A bulb blew out today which sometimes happens. The problem is that the entire fixture will not turn on from either switch. (one switch is a dimmer and the other is a normal mercury switch.). If one of the switches is blown will this cause the other not to operate?


Follow-Up Postings:

 o
RE: Hanging light dead

Yes, with 3 way switches, both need to function to complete the circuit. If your dimmer is as old as the mercury switch, this sounds like a great chance to replace both of them.


 o
RE: Hanging light dead

Thanks loads for the info. Replaced dimmer switch. Hanging kitchen light now working! (from both switches).


 o
RE: Hanging light dead

Dimmers are especially sensitive to the current surges that can accompany a 'blowing' light bulb.

The most common dimmer size is 600 watts, or 5 amps at 120 volts.

Exceeding this number for even a fraction of a 60 Hz cycle can destroy the semiconductor (a Triac) in the dimmer.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Electrical Wiring Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here