MCU Shutdown before max temp reached

General Discussion
1

This one is stumping me here. For some reason I’m getting an MCU shutdown because my ADC is out of range. However, I’m not even close to my max temp. I get a consistent shut down at just past 200c at my hot end. My max temp for this hot end is at 350c. My bed temp is also well within range. Any idea what I’m missing here?

printer.cfg (3.1 KB)

klippy.log (1.0 MB)

2

extruder: target=230 temp=-57.6 pwm=1.000
MCU ‘mcu’ shutdown: ADC out of range

You have a bad connection or failing thermistor.

3

Oh no! Thank you for finding that!