Printing Problems with Sunlu, maybe

Bambu Lab P Series Troubleshooting
1

I have had nothing but printing problems with my P1S, since I started using Sunlu Filamanent, but not sure that is the filament. It was printing fine then all of a sudden, it would not extrude, so I ended up changing the Extruder motor and all other extruder parts, And then the nozzle would not heat, so tried new nozzle, still no heat. At the advice of Bambu Tech support changed all the IC boards, and no change.

With may A1 Mini no problem with the filament.

Thanks in advance
Any discussion on what is going on?

2

I would be looking at the electrical connections, wires/cables going to the print head.

3

That is first thing I checked, and all appear to be good and solid connections. But what I can’t get answered from Bambu is which specific cable is responsible.

4

Are there any HMS error codes? Have you tried setting a nozzle temp from the front panel and moving cables to see if it starts heating?

The connectors in the print head can be sensitive to being removed and connected. It is easy to not get one reconnected properly.