I’ve been working with support and not getting very far. My brand new H2D would not print out of the box. It wouldn’t even attempt to pull filament if I tried to print with it. I could manually load and unload filament, and push it through the extruder and nozzle, but printing would immediately fail with “The extrusion motor is overloaded”. I replaced the idlers and filament sensors, but no change. Finallly, Bambu sent me a whole new extruder unit, which I installed, only to get more errors. I’m trying to sort through them.
I’m getting 3 errors and a warning to do maintenance (on a printer that’s never been used?). Anyways, the errors are “The left filament cutter sensor is malfunctioning…”. I also get the same one for the right filament cutter. Then I get “The position hall sensor of the Extruder Switching Motor has an open circuit”.
I assumed there was a problem with one or both of the ribbon cables that attach to the unit, but I have disconnected and re-seated those several times. They’re in straight and look fine. Is there something else I should be checking? Could it be the cables that are the actual problem? Any insight or suggestions appreciated.