I just walked into my room and glanced at my herpstat 1 and it said the probe was at 80 degrees, when I have it set to 92 so I knew something was wrong. Just so happened my probe had come untaped from the heat tape (my fault) but the herpstat kept trying to raise the temperature to 92 and my heat tape and the bottom of the tub was SCORCHING hot. I thought there was a safety relay to prevent this from happening?? Am I doing something wrong with it?