A1 failing to load filament

I’ve printed close to 400 hours on my A1, and done several filament changes, but for some reason it’s no longer loading filament. The nozzles aren’t clogged, as I’ve tried 3 nozzles, one of which being brand new. The spinning part on the hotend area is spinning when I press load filament, yet it fails to load. I’m just printing PLA, so it should just work.