Brake Wear Light On

[husker boxster]

Washed my car Sat afternoon and the first time I stepped on the brake my BRAKE WEAR light came on and stayed on. Checked to see if the wear indicators had popped out from the water pressure but they were all in (did a visual thru the wheels - didn't take the wheels off). Next time I took it out was Sun evening. On the trip out the light came on. On the trip back it stayed off. Drove in to work this morning - no light. Drove home from work and the light was back on.

I put Ferrados on back in Jul. Have 6k on them. Didn't change the wear indicators. I'm not hard on brakes, no autox or track time. The pedal is strong, no grinding noises when I brake. I doubt the pads are worn out.

I saw some past threads about the light coming on mysteriously after washing. Could there be h2o in the wear indicator hole that's causing the problem? It hasn't been warm the last few days, so it's possible the h2o hasn't evaporated (I do garage my car).

Any thoughts? Is this serious? Any and all $.02 worth greatly appreciated.

Terry