Paused Thermal Error  

Paused Thermal Error

Hello All

I have been struggling with one of the MK3s I have here at work, initially we were getting Power Panic crash cycles when the bed heats, so I replaced the bed heater and bed thermistor, updated firmware and did a calibration wizard and Thermal HW calibration.

started a print and it was fine for about 2/3 of the print, it then started beeping and throwing up a "Paused, Thermal Error" message on the LCD screen.. so I stopped the print, did a PID Calibration and then getting a Thermal Runaway message. 

reset the machine and started a print once again just a simple Benchy, and it would heat up, then go into yet another power panic cycle. unplugged the power panic cable and restarted a print, got to about 2/3 of the way, then again a new thermal error and layer shifting before it stopped completely. 

and because I had a spare head thermistor and heater around I swapped them out as well just in case and yet I am still getting the same issues, so I am at a bit of a loss here with this one, FW and Slicer are the latest versions. no aftermarket parts or any remote control.

any help would be appreciated. 

thanks