I'm on the Hot-End test stage of my Fisher setup and when I set the hot end to heat up to 190 it went up from room temp to around 145 very quickly. However, when it hit around that area, the temperature just began to drop again.
I had initially thought that maybe something got too hot and un-soldered itself but had a quick glance at the hot-end and can't see any sort of damage or anything out of place.
Does anyone have any suggestions?