The printer suddenly stop detecting AMS. I followed the AMS is not detected by the printer | Bambu Lab Wiki and it looks like Sig-B on AMS side is shorted to ground, i.e. GND-SigB is 0 Ohm. GND-SigA resistance is ok. All resistance values on the printer side are ok as well. Do I need to replace AMS main board or just a power module?
Sounds like a warranty issue
Never mind. I unplugged everything. Used a touch of dielectric grease and replugged.
Works now. oh well. moving on