Hmm…I never paid much attention to the line when it worked. So I never leaned what it was trying to say.
I jumped to the “bed is having an issue” since it was not heating when the heat on gcode was being sent.
In any case, I shut it all down for the night. The next day I tested the resistance of the thermistor and the bed, all good. I reseated all the connectors. Then powered everything up again and all appears good and it’s printing now.
I replace the PI 2 with a PI 3. So it has the latest Rasbian and the latest Pronterface. It’s also possible I didn’t reboot after doing apt-gets for a bunch of stuff including Pronterface, Arduino, etc.
Thanks for the reply.