Can't replace nozzle
I decided to try swapping to a smaller nozzle for the first time on my new MK3S, so I heated up the extruder to 285C and followed the video directions. However, try as I might, I couldn't get the nozzle to budge at all. I even tried using pliers instead of a socket, but ended up just scratching up the nozzle. Some of the PETG on the probe mount got stuck to the heat block too. I'm hoping nothing was damaged, but I feel like something's wrong and I shouldn't need to try this hard to get the nozzle off.
RE: Can't replace nozzle
I also tried heating it at 285C for 15 minutes like another forum post suggested, but that didn't work either. Luckily it looks like the hotend still works fine with the original nozzle.
RE: Can't replace nozzle
Bumping this because my post didn't get approved until it was on the second page.
RE: Can't replace nozzle
Not to be obvious, but are you sure you're turning it the correct way? The nozzle will turn from right-to-left when viewed from the front when loosening. Be sure to brace the heater block securely and avoid twisting it. If you have a lot of build-up, it may be stiff at first, but I've never had to exert a lot of force to remove a nozzle.
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RE: Can't replace nozzle
I did manage to get it off once I got an actual torque wrench instead of just a screwdriver with a socket head, so I'm marking this as solved.