Failed print - then M112 error
Hello,
I had a failed print, the print melted on the bed and ruined it (couldn't remove). I figured something must have failed and wondered if it was the generic PETG I was using. I bought a new powder coated sheet anyway as the old one was a little tired as well as some Prusament.
Now I keep getting M112 errors. I have the latest firmware and octoprint is up to date. I took my printer apart to measure and hotend, and both termistors are in range. The heat bed though is not. Its reading 2.8Ω. It's close, but not within the expected range [3.5 Ω - 4.0 Ω].
Before I drop $100 on a new heatbed that I don't really have to spare, is this what I should be replacing? Is failure common? I checked the PCB tracks and there is a slight scratch on one, but its not cut or anything (tested). Other than that, the bed looks fine to me.
Any help / advice appreciated.
Thanks,
Gordon