filament stuck all over the nozzle

[Bruce19]

I had that happen to my ender 3pro about 2 weeks ago. Was all over nozzel up and over fin thing. I would up disassembling and slowly breaking off runaway filament. Once cleaned off I reassmbeled hot end. Then thru temperature control I heated up nozzel to 200 and left for a min or two, After I pulled back filiament in boden tube feww inches. After that Ive had no more issues with that