Flashing lights on controller board

I had a limit switch issue and open the controller cover while trouble shooting. I saw 2 blue lights, 1 red flashing and 1 green flashing on the board. While trouble shooting the limit switch, I must have bumped something… I now have 2 blue lights and red flashing… no flashing green light.

Also, when I open CM and connect to the cutter, few seconds open and CM says “cutter not responding”?

Any help would be greatly appreciated.

Thank you,


Please try pressing the reset button — hopefully that will get the board connecting again.

There’s a basic page on this at: https://docs.carbide3d.com/software-faq/can-t-connect-to-machine-or-jog/

Thanks for the quick reply Will. I’ll try that today. I’m assuming the reset button is on the board?

Yes, lower left or upper right (depending on orientation).

Hey Will

That worked. I just need to get a limit switch. I thought I had an extra but since I moved last year, can’t find em. Thanks for your help Will!


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