If you find this error when you preheat the bed to ABS temps (100C), please try the following troubleshooting steps:
If you've checked all the above and everything is in order. Please reflash with the latest firmware found at www.prusa3d.com/drivers.
After reflashing, if the issue still exists please contact support at firstname.lastname@example.org.
Our award-winning customer care team is here for you.Contact Support