J1 grinding noise and filiment fails to load

[Hana]

I face to the same kind of trouble. I think this is heat creep. There are topics under discussion for heat creep as follows;

Findings and solution for the Snapmaker J1 clogging problem

Hello all, this is a joint project by: @Mechanikus @MrBean @i3sven and the kind support of the Snapmaker J1 team. Today we present you, our findings and solution against the clogging problem on the J1. In this document you will find everything that leads to the problem and what it takes to solve it. Document PDF, and converted here for viewing in the forum. We thus hope to be able to offer everyone a solution.

I hope you to check it.
I got very useful information, but it’s tough to solve issue…