Troubleshooting Fluorescent Ballast? - Electrical - DIY Chatroom Home Improvement Forum

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


Thread Tools Display Modes
Old 12-13-2012, 07:10 PM   #1
Join Date: Feb 2010
Location: Oklahoma
Posts: 992
Rewards Points: 506

Troubleshooting fluorescent ballast?

A 3 lamp fluorescent fixture stopped giving light.

1st action = new tubes. Result = no light.

2nd action = verify input voltage. Result = 120v line to neutral.

3rd action = go to DIY Chatroom and ask if a procedure exists to verify the proper function of the ballast (besides the light tubes). Result = ???


jlmran is offline   Reply With Quote
Old 12-13-2012, 07:15 PM   #2
joed's Avatar
Join Date: Mar 2005
Location: Welland, Ontario
Posts: 10,114
Rewards Points: 7,022
Blog Entries: 11

Troubleshooting fluorescent ballast?

Change the ballast. The tubes don't light and you have input power. The ballast is bad unless you new tubes are bad. You could try them in a different fixture.

Standard fluorescent repair procedure.
1. Change the lamps. No light see #2.
2. change the ballast.


Do not PM with questions that can be asked in a forum. I will not respond.

Last edited by joed; 12-13-2012 at 10:31 PM.
joed is online now   Reply With Quote
The Following 2 Users Say Thank You to joed For This Useful Post:
jbfan (12-13-2012), micromind (12-13-2012)
Old 12-13-2012, 08:57 PM   #3
Join Date: Nov 2005
Location: Winnipeg, Manitoba
Posts: 1,213
Rewards Points: 642

Troubleshooting fluorescent ballast?

4th action-change the ballast
darren is online now   Reply With Quote
Old 12-14-2012, 12:13 AM   #4
" Euro " electrician
frenchelectrican's Avatar
Join Date: Apr 2006
Location: WI & France { in France for now }
Posts: 5,369
Rewards Points: 2,000

Troubleshooting fluorescent ballast?

5Th action .,, Make sure the wiring diagram is match up to the tombstone connection and also use the correct lamps as it will listed in the ballast housing.

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
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
fluorescent ballast change question herf Electrical 8 04-14-2012 09:07 AM
Fluorescent Ballast Tricks? K|O|G|I Electrical 16 02-23-2011 08:50 PM
Changing Kitchen Light - Fluorescent Ballast llmercll Electrical 23 02-08-2011 11:45 AM
No ballast in 48 inch fluorescent fixture. Timster Electrical 16 06-10-2010 05:02 AM
New Fluorescent Ballast trips GFCI Breaker?? marc515 Electrical 7 02-18-2010 05:42 PM

Top of Page | View New Posts