You really think this? Flash over from water???If there was enough water around or on the cables,
Then yes the cables could be scorched,
By flash over or arcing between the conductors of the cable,
Lol.....Copper nor aluminum rust, they oxidize. Replace the fixture and FIX the leak firstAllanJ said:Most likely some of the joints between wires and other parts got rusty and stopped conducting electricity. Often these joints are riveted so you can't use a screwdriver to tighten them up.