I’ve been using my MP3DP for a few months now and all of a sudden yesterday I noticed the bed heat was at around 100C when my print only called for 50C. I thought is was just an anomaly, but when I went to start printing more parts this evening the bed started heating as soon as I plugged in my power supply. The display shows no set temp and there’s there’s no little wavy lines above the bed heat icon. Any ideas?
I’m using a RAMPS 1.4 board with the Marlin 2 firmware from the V1 Github, and an ATX power supply.