My Ormerod burned... (6 replies)

Sigh...

Today I left my Ormerod printing alone for a while (30 minutes more or less) and when I came back I found smoke coming out from the extruder.
I turned it off immediately, and then turned on again to let the fan cool down the extruder.

The photos talk by theirself...

What I've found is that the termistor is not read properly anymore, Pronterface shows "T:-17"...

What shall I do now? :-(

I printed a lot in the last days, without problems... the only thing I made yesterday was updating the firmware to the latest in the duet branch, and last commit on GitHub says "Updating thermistor values".... Could it be connected to my problem?

Thanks,

Rosario