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Comercial building electrical question. Fluorescent lights. 4' 4 tube troffers. All 4 lamps out. Touch any lamp with 1 finger and all 4 lamps come on, stay lit all day. Turn off at close, on at open, may work may have to go through proceedure again. What is going on? Thanks for your help.
 

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How old is the fixture? Are you using rapid start lamps and ballast? You may need to replace the ends to make better contact with the tubes. Is the fixture grounded? Sometimes an ungrounded fixture will act this way.
 

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jbfan said:
How old is the fixture? Are you using rapid start lamps and ballast? You may need to replace the ends to make better contact with the tubes. Is the fixture grounded? Sometimes an ungrounded fixture will act this way.
Good ground.Yes to rapid start lamps and ballast.These fixtures are old and in restaurant. Have to check on lamp holders. Thanks for your help.
 
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