I have a FLSUN 3D Printer Plus. I have been using it for about 6 months now with no issues. On day I had a nozzle clog and it took the hot end apart and cleared it. When I reassembled the hot end the LCD display shows 358 degrees for the extruder. I figured that I damaged the thermistor so I replaced it. Still shows 358 degrees. It shows 358 degrees even when the thermistor is unplugged. I have tried re flashing Merlin 1.8.5. I have tried switching the thermistor to make sure the new one works and it reads fine. I have even tried a new heat rod, but still shows 358 degrees. The thermistor port is also fine, I checked the solder connections and they are still good. I am using a 100K thermistor and it is correctly configured in Merlin. I have searched the web for this issue and all I find are people who need to loosen the set screw to fix it. I haven’t be able to find someone where this problem persists even after unplugging the thermistor. Thanks for any help you can offer.

Merlin: 1.8.5

Board: MKS Gen L V1.0

Thermistor: 100k