Ok now this is a little bit more serious. I am still getting the temp fall error. But tonight when I came out. My printer was stalled the lights were out and the motors sounded like they were grinding.. I did some searching here and it looks like my RAMPS (is that correct) could be over heating..I actually found a 120mm 12 v DC fan. If I can clean up the cable management. I may use that.. in the under carriage.