Track light troubleshooting; what to check
Track light issue
A single track light in a retail space used to work, but in the recent past there was a leak from the unit above. Leak was fixed but may have affected the light, as around the same time the track light no longer worked. I'm told the track light was untouched during leak fix, and I believe leak work was all done in the unit above.
Track seems to have power; my wand tester turns red when loosely probing the rail. When the light switch is off, same test does not trigger red on the probe. Other track lights in the store work, and swapped test bulbs (ie fixtures) all work in other tracks.
Under the plastic cover at one end of the track, there's a power adapter that power wires (from the ceiling box) pass through to deliver power to the rail. This little widget looks deformed (like slightly melted), yellow and for some reason is greasy to the touch (even though it's under the plastic cover). Disconnecting this adapter from the rail seems to cut power to the rail (doing the probe test).
So rail seems to get energized and is still oriented based on the original install.
What could be the issue? Without other steps, currently will just roll-the-dice and buy a new adapter widget because it looks like it's in bad shape.
I understand some installations have a central transformer, located away from a rail, but if that was busted then presumably all the other track lights would have issues too?
