Indicator Warning coming on but no dropped frames?

[Don Schechter]

I just got my camera serviced/cleaned at a reputable place and one I've used before. Every 30 mins of filming or so I get the warning light for dropped frames. I use tape cleaner and then get another few minutes. On my tapes (did this 3 different days/tapes) there doesnt appear to be any dropped frames?

Does anyone know if it is possible for the light to go off but the camera to be fine.

Any help is appreciated!