I can preheat both the extruder and the bed with all indications being normal.

However, when I try to print from the SD card, the printer ignores my command.  The target temps stay at 0 and heating never starts.  When I check the printing status, the machine seems to think it is printing, since the "STOP PRINT" option is available.

I printed a part yesterday with no problem.  I use Cura 4.4.1 as my slicer and have had success in the past (as recently as yesterday).

Help!

What was the file type save on the card for printing? *.gcode or *.stl?

However, when I try to print from the SD card, the printer ignores my command.  The target temps stay at 0 and heating never starts.  When I check the printing status, the machine seems to think it is printing, since the "STOP PRINT" option is available.

I printed a part yesterday with no problem.  I use Cura 4.4.1 as my slicer and have had success in the past (as recently as yesterday).

Help!