Troubleshooting fluorescent ballast?

814 Views 3 Replies 4 Participants Last post by frenchelectrican, Dec 14, 2012

jlmran

Discussion Starter · Dec 14, 2012

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 = ???

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joed

· #2 · Dec 14, 2012 (Edited)

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.

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Reactions: 2

darren

· #3 · Dec 14, 2012

4th action-change the ballast

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frenchelectrican

· #4 · Dec 14, 2012

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.

Merci,
Marc

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