I have a profilux 3 that I upgraded from 2 when it first became available. Temp readings were very accurate up until 3 weeks ago. The temp probe all of a sudden registered 102.8 deg and I was lucky to catch it before I lost the tank. After a couple of restarts and resets - no change. So I bought a NEW temp probe and I just installed it. Same thing - 102.8!!!!!!!!!!!!! I don't understand what is the issue?! Is it the board?

Thanks!