Filament stuck in hotend.

Hi, when printing, my filament melts in the hotend. I thought it only happens with PLA, but it happened with ASA and PETG. The fan on the hotend works and the nozzle is passable. Does anyone have any idea why? Is it possible to change some cooling settings or calibrate the thermistor or anything else? Thank you for the answers.

Can we have a picture? Is the nozzle nipped up nice and tight? Please confirm which printer, you wouldn’t normally print ASA on a V3SE/KE without an enclosure.

Hi, I have Ender-3 V3 KE. I’ve printed small things with the ASA so far, but apart from clogging, I’ve had no problems. The nozzle is nicely tightened.