Here at work we have a JGAURORA Semi-closed Metal Frame Z-603S and we are having an issue with our bed temperature reading. As soon as you power it up the print nozzle reads 21C like it should but the print bed reads 65C and is stuck on that number even if you heat the bed up which it does get hot to the temp. we set but the theromister won’t read it. We have replaced the print bed which comes with the theromister installed and the wiring. We have done a restore to failsafe as well as flash the printer with the new firmware. I don’t know what else to do which is why I would love some feedback on how I should approach this problem. Thank you!

Did you ever find a resolution? I have same printer on work bench and the print nozzle (extruder) reads 96C and hot bed reads 65C. Connecting to Pronterface never happens to check any errors and if you use Cura it connects fine but when going to heat it gives a E1 Heating failed and states to reset.