hey did you ever get this resolved?, it sounds lie you have a bad thermistor or the connect to the thermistor is faulty and therefore not getting an accurate temp reading if you have a pc and pronterface you can connect to check temps and possibly do a pid autotune
Yeah, that’s what it seems like no heads up or nothing. I was surprised when I tried going to the website as I wanted to order a new bed plate for the printer.
I think it’s dead here. I’ve had so many problems with this printer. Finally got fed up. Ripped the SKR 2 board out of the machine and upgraded to the SKR 3 board. It no longer runs marlin and switched everything over to klipper. Runs great now.