[jlmran]

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 = ???

 

[joed]

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.

 

[darren]

4th action-change the ballast

 

[frenchelectrican]

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