So I don’t think it’s related, but I switched from 0.12 to 0.08 height and after the print finished there is a clog or a jam. I was trying to manually load in the next filament that doesn’t work in AMS but I couldn’t get it to load. I cleared the nozzle with the pin and turned the temp up but can’t get anything extruded through. I hear a click click sound as the extruder tries to spin. Is this a nozzle or extruder issue? I’ve got hunderds of print hours on this and haven’t had to take it apart before 
Remove extruder nozzle assembly, you’ve got a busted piece of filament in there. It’s a common problem. See the Wiki for instructions.
staring at my 30 hr print on hr 14
Thanks Man. It helps to get confirmation before I disassemble. It’s because I forgot with the Bambu you just press the extrude button instead of pushing the filament through. I’m sure I broke some inside from pushing.
So I broke it all down, which is good to do anyway for a first time, and found it was NOT in the extruder but actually a broke piece right in the top of the cooling tower above the hotend. I don’t know what is normal method, but I took a small drill and carefully drilled out the material from the top half of the hotend. I know there are risks of scratching the inside so if there is a better technique please tell me.