Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Electrical


Thread Tools Search this Thread Display Modes
Old 05-06-2011, 02:44 PM   #1
Join Date: Feb 2006
Location: portland, OR
Posts: 151
Rewards Points: 150

Bad Dimmer?

Funny thing happened the other evening. I Have had six new cans in the kitchen ceiling for a few weeks now. The other night one of the lights blew out, (the one with the hot wire loop out to the dimmer switch). After that, the switch was always on no matter what the actual position.

All the wiring looked fine at the light and the switch. Replaced the dimmer and all works well. Could a bulb burning out cause a dimmer switch to go bad like that?

I'm gonna hurl myself against the wall
because I'd rather feel bad than not feel anything at all
Warren Zevon
handifoot is offline   Reply With Quote
Old 05-06-2011, 03:10 PM   #2
a7ecorsair's Avatar
Join Date: May 2010
Location: Minnesota
Posts: 2,052
Rewards Points: 1,000

Bad Dimmer?

You may never know the full answer and whether it is the result of the bulb burning out or because of a voltage spike. Bad neutral connections at the service can cause weird problems.

a7ecorsair is offline   Reply With Quote
Old 05-06-2011, 07:28 PM   #3
Electrical Contractor
kbsparky's Avatar
Join Date: Sep 2008
Location: Delmarva
Posts: 3,368
Rewards Points: 2,000

Bad Dimmer?

Originally Posted by handifoot View Post
... Could a bulb burning out cause a dimmer switch to go bad ....
Yup. Happens all the time. If the filament blew out with explosive force, the 2 leads that hold up the filament could have shorted out, which can in turn trip a breaker, and/or burn out a dimmer.

I've seen halogens do the same thing.

Life is uncertain -- eat dessert first!!
kbsparky is offline   Reply With Quote
Old 05-06-2011, 10:43 PM   #4
" Euro " electrician
frenchelectrican's Avatar
Join Date: Apr 2006
Location: WI & France { in France for now }
Posts: 5,369
Rewards Points: 2,000

Bad Dimmer?

I have see them when the bulb burn out and blow the dimmer out when the filment arc'ed out.

Some dimmer can withstand couple blowout on bulbs but direct short circuit will always fried them out.

The answer will be based on NEC ( National Electrical code ) or CEC ( Cananda Electrical code ) or ECF ( Electrique Code France )
frenchelectrican is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
4 way dimmer jamiedolan Electrical 7 08-24-2010 01:45 AM
HALP! Master/Remote Dimmer troubles! Confuserated Electrical 9 02-12-2010 04:30 PM
Dimmer switches brokenknees Electrical 9 11-29-2009 06:59 PM
Basic Switch wiring question; Dimmer to Toggle switch (Pictures included) inspectator Electrical 8 08-07-2007 02:19 AM
When Bulb blows, Dimmer Switch Blows mAv19 Electrical 2 05-26-2006 04:52 PM

Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.