Hi Dave, I have the above mentioned issue. There are mineral deposits around motor shaft, so the leakage there is light but still a leak. Would that kind of light seepage do it? Motor was replaced 2 years ago. Watkins vendor 4081 Gecko 4000 110v 2 speed. My tub trips now once every few days. I was thinking it could be heater but it just headed up to 100 degrees from 70 degrees water. If it was the heater, wouldn’t it trip quicker?