CLICK HERE AND JOIN OUR COMMUNITY TODAY, IT'S FREE!
Go Back   Electrician Talk - Professional Electrical Contractors Forum > Electrical Forum > General Electrical Discussion

Reply
 
Thread Tools Search this Thread Display Modes
Old 07-13-2009, 08:48 AM   #1
Junior Member
 
Join Date: Jul 2009
Location: florida
Posts: 4
Default fluorescent light question

if a fluorescent light doesn't come on until you touch the light could that mean that the ballast is going bad? of that the bulb is going bad

bacon8685 is offline   Reply With Quote
Join Contractor Talk

Join the #1 Electrician Forum Today - It's Totally Free!

ElectricianTalk.com - Are you a Professional Electrical Contractor? If so we invite you to join our community and see what it has to offer. Our site is specifically designed for you and it's the leading place for electricians to meet online. No homeowners asking DIY questions. Just fellow tradesmen who enjoy talking about their business, their trade, and anything else that comes up. No matter what your specialty is you'll find that ElectricianTalk.com is a great community to join. Best of all it's totally free!

Join ElectricianTalk.com - Click Here JOIN FOR FREE


Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. ElectricianTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

Old 07-13-2009, 08:54 AM   #2
Registered Member
 
Join Date: Feb 2009
Location: State of Euphoria
Posts: 14,058
Default

A few lights I've seen ih the past require a ground to light. It's possible you're grounding the light and making it light. It's also posssible that you're jiggling it when you touch it and completing a loose connection. Does it do it every time? Did it just start or is this a new install?

mcclary's electrical is offline   Reply With Quote
Old 07-13-2009, 08:58 AM   #3
Junior Member
 
Join Date: Jul 2009
Location: florida
Posts: 4
Default

this is a old light, its a 4'. There are a total of 5 lights ties to one switch and recently when the switch is turned on only one bulb will come on until i touch them. the second i touch the end one by one they come on. i was figureing it is a bad ballast since they are all tied together, could one bad ballast cause that sort of reaction.
bacon8685 is offline   Reply With Quote
Old 07-13-2009, 09:21 AM   #4
Senior Member
 
Toronto Sparky's Avatar
 
Join Date: Apr 2009
Location: Toronto, (Scarborough) Canada.
Posts: 1,580
Default

I find that replacing the lamp fixes that.
I am thinking the the static in your hand helps to get the electrons moving.
__________________
Don't fight .. Play nice!
Toronto Sparky is offline   Reply With Quote
Old 07-13-2009, 11:01 AM   #5
Electrical Contractor
 
lectro88's Avatar
 
Join Date: Jul 2009
Location: Charlotte, NC
Posts: 101
Default touching lamp

I've have this problem at my mothers house. Just a slight touch to the lamp seems to excite the gases. I relpaced the old keyless over the sink with a 3' single lamp electronic ballast T12 fixture. This was the new tecnology then 13yrs ago. And there was no ground in the cable, its an old house. I beleive the static or minimal ground from the touch starts the ballast. First Post Guys.
lectro88 is offline   Reply With Quote
Old 07-13-2009, 11:21 AM   #6
Junior Member
 
Join Date: Jul 2009
Location: florida
Posts: 4
Default

I also have a probelm with another set of lights, in one of our offices the light swtich has to constantly flipped on and off until it comes on. Would a bad ballast also cause that, or could it be a bulb issue. I'm trying to get insite into these probelms to secure my suspicions.
bacon8685 is offline   Reply With Quote
Old 07-13-2009, 11:38 AM   #7
Senior Member
 
Toronto Sparky's Avatar
 
Join Date: Apr 2009
Location: Toronto, (Scarborough) Canada.
Posts: 1,580
Default

Lamps are cheap..
Try them first
__________________
Don't fight .. Play nice!
Toronto Sparky is offline   Reply With Quote
Old 07-13-2009, 03:29 PM   #8
Senior Member
 
Larry Fine's Avatar
 
Join Date: Oct 2007
Location: Richmond, Virginia
Posts: 154
Send a message via AIM to Larry Fine
Default

I believe it's lack of proper fixture/ballast grounding.
__________________
I laid in bed last night, looking up at the stars, and
I said to myself, "Where the hell is my ceiling?!"
Larry Fine, Master Electrician and
Electrical Contractor, Richmond, Va
Larry Fine is offline   Reply With Quote
Old 07-13-2009, 03:43 PM   #9
I own stock in FotoMat!
 
480sparky's Avatar
 
Join Date: Sep 2007
Location: Cornpatch USA
Posts: 34,818
Default

Quote:
Originally Posted by Larry Fine View Post
I believe it's lack of proper fixture/ballast grounding.
Ditto.
__________________
Never believe everything you read on the internet. --Thomas Jefferson.
480sparky is online now   Reply With Quote
Old 07-13-2009, 08:32 PM   #10
Senior Member
 
Join Date: Dec 2008
Location: Franklin Co. VA
Posts: 425
Default

Quote:
Originally Posted by Larry Fine View Post
I believe it's lack of proper fixture/ballast grounding.
Quote:
Originally Posted by 480sparky View Post
Ditto.

X3, need a ground.
Kevin J is offline   Reply With Quote
Old 07-13-2009, 08:40 PM   #11
Senior Member
 
Join Date: Dec 2007
Posts: 1,966
Default

I also think it is bad grounding and yes, new bulbs usually help -- for a while.
waco is offline   Reply With Quote
Old 07-13-2009, 09:05 PM   #12
Senior Member
 
kbsparky's Avatar
 
Join Date: Sep 2007
Location: Delmarva, USA
Posts: 2,413
Send a message via ICQ to kbsparky Send a message via AIM to kbsparky Send a message via Yahoo to kbsparky
Default

Damp ambient conditions and dusty or dirty bulbs can make them sluggish starting.

Try removing the bulbs, and wiping them down with a damp cloth, then a dry cloth, and replacing.

We have had better results with clean bulbs.
__________________
-KB

Life is uncertain -- eat dessert first!
kbsparky is offline   Reply With Quote
Old 07-14-2009, 10:24 PM   #13
CFL
Senior Member
 
Join Date: Jan 2009
Location: SE USA
Posts: 744
Default

Quote:
Originally Posted by kbsparky View Post
Damp ambient conditions and dusty or dirty bulbs can make them sluggish starting.

Try removing the bulbs, and wiping them down with a damp cloth, then a dry cloth, and replacing.

We have had better results with clean bulbs.
What about that coating that the manufacturer puts on the lamps? It's suppose to help them light right? But I guess if it's real dirty you don't have a choice.
CFL is offline   Reply With Quote
Old 07-15-2009, 07:14 AM   #14
My back hurts
 
Join Date: Mar 2009
Location: Central NJ
Posts: 50
Default

Quote:
Originally Posted by CFL View Post
What about that coating that the manufacturer puts on the lamps? It's suppose to help them light right? But I guess if it's real dirty you don't have a choice.
What coating?? Do you mean the coating on the inside of the lamp?
__________________
John
JES2727 is offline   Reply With Quote
Old 07-17-2009, 08:57 AM   #15
Junior Member
 
Join Date: Jul 2009
Location: florida
Posts: 4
Default

I have tried replacing the buld and ballast in all of them. I guess the next step is to check the ground should i check it from the switch or the fixture. or both i've never experienced this if you change the bulbs and ballast normmally that always works for me

bacon8685 is offline   Reply With Quote
Reply

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
flourescent light question icandrawem2 General Electrical Discussion 18 03-20-2010 11:42 AM
Pulse Start MH Light fixture Question KEI Lighting Design 2 06-24-2009 10:12 PM
Fluorescent Light Ballast gatzke General Electrical Discussion 1 12-20-2008 08:15 AM
Street light power consumption question Rob1984 General Electrical Discussion 7 11-06-2008 04:59 PM
Question about installed light fixture & ceiling fan tallford78 General Electrical Discussion 3 07-07-2007 05:31 PM


All times are GMT -4. The time now is 07:54 PM.


Copyright 2006-2014 Escalate Media LP. All Rights Reserved
Our Pro Sites Network
ContractorTalk.com | DrywallTalk.com | HVACSite.com | PaintTalk.com | PlumbingZone.com | RoofingTalk.com