@mpirringer Thank you for the reply. I pulled it back apart and noticed that the wire sleeve on one side was pulled back a bit from the bulb. I may have clamped it down to hard and caused the short because of the un-sleeved bit of wire. I carefully replaced the thermistor into the block making sure the ends of the sleeves were in the hole with the bulb, and was careful to only lightly tighten the screw....and it appears to be working fine again. Thank you again!!