Answered Printer hardware error only on ABS

Check your GCode terminal for an error. I suspect a thermistor error.
The hotend thermistor is loose, or has a loose wire or is defective.

 

There is a terminal somewhere in MC (don't use it, sorry) and that is where you will find printer errors (the actual errors).

Docs are over here: http://wiki.mattercontrol.com/Main_Page

maybe this: http://wiki.mattercontrol.com/index.php?title=Options/G-Code_Terminal&redirect=no

 

make sure you scroll back all the way looking for errors.

 

Won't know for certain until you identify the error it is complaining about.
However loose thermistors, bad thermistor wiring and faulty thermistors are common.

 

You can edit the firmware and set that limit to whatever works for you.
They limited it on the early R1 models because the wiring was getting burnt due to the bed heater drawing more power that the original wiring would accommodate. They later switched to using ribbon cable from the RAMPS to the bed heater so if you have that modification, raise the limit.

 

They were being safe. The original cable was involved in at least one printer that essentially melted down
After that they pretty much just canned it getting above 80 to minimize the current draw on the RAMPS and the bed heater.

They pretty quickly changed the wiring, but they have never been quick to change or update the firmware. That has almost always been user driven, we will see how this goes with the C2/R2.