Bed Heating error
Hello! First time posting in the forum.
I have an MK2.5 with the MMU2.0 upgrade. I'm yet to complete a print using MM, and have been fighting with the PTFE tube calibration and several other issues for a few days, but that is another story.
I'm getting a "BED HEATING ERROR" in the middle of a print. Always at the same moment, after doing the first layer with fil1, then switching to fil2 for first and second layer. Right after that, before starting the switch back to fil1, I get the error.
The bed heats prefectly at start, and mantains temp. When the error triggers, the bed is at 90º (as is had been since starting the print).
I've checked the thermistor and it's safely taped in place. I've checked the power cables both on the Rambo box and the heatbed side, and everything seems to be in order. I have been using the printer recently with no issues, and even printed in Single Material mode after the MMU was installed.
Fil1 is PETg and fil2 is HIPS, so bed is setted to stay at 90º the whole print, this is not triggered by a temp change.
Any help or suggestion will be really appreciated!