One of my stealths crapped out and its only been 2 months. I have 1 in the tank 1 in the sump and it figures it'll be the one in sump thats dead. Saw the plastic casing and its warped/melted. My mistake was not unplugging it when I was adjusting my pumps and had to drain the sump.But according to the specs its supposed to turn off automatically when no water is present.
So far the one is keeping my 125g at 79F, good thing I ordered a WON bros 500w heater w/controller, should be here next week.
that it has a protection circuit. 