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Are the 4 fixtures removable from the main track?
The problem you are having sounds like loose or dirty connections!
The 4 fixtures are removable from the main track by turning the fixture 90 degrees. I have used similar track lighting for many years and have never had one to not work because of dirt y or loose connections, but I will see if I can solve this problem by removing and cleaning the track. (The connections seem quite tight and, with 9 foot ceilings there is little to no chance that the connections would get "looser" over time. I note that a ceiling air/conditioner Heating vent directs warm or cool air onto thie fixture, perhaps increasing the posssibility of becoming dirty. Does this ability to respond "stay open" for further communication? Thomas L. Healey
I was told by another expert that those lamps only have a 25 to 50 hour run time.
also they are not great in a kitchen due to steam and or smoke, humidity!
I would take the fixtures down and clean them good with electrical concact cleaner.
you can get it at radio shack
also clean the track
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