I accidentally placed the upper burr in upside down. Now it is wedged in and I can't get it out. Any suggestions?

Safety Tip: To prevent any potential mishaps, ensure sure your grinder is fully off and unplugged before using it. Also, if you haven't used it in a while, make sure it's cool to the touch.
Let the Bean Hopper open. Take off the bean hopper from your grinder's top. This is going to reveal the top burr.
Take the Upper Burr Carrier Off: An upper burr carrier is usually used to hold the top burr in place. It is necessary to take out the upper burr carrier. Depending on the kind of your grinder, the precise procedure may change, but generally speaking, it entails undoing a few screws or tabs that secure it. In general, follow these steps:
a. Check the upper burr carrier for any visible screws or tabs. Usually, they're close to the edges.
b. To release the tabs or loosen the screws, use the proper equipment (usually a screwdriver). To prevent breaking the grinder, use gentleness.
c. After the upper burr carrier is released from its locking mechanism, carefully pull or slide it out.
Lift Out the Top Burr: The top burr can now be removed after the upper burr carrier has been taken out. The burr might be secured in place by tiny clips or notches, so proceed with caution and gentleness.
Clean and Maintain: After removing the top burr, you can give the grinder and its parts a thorough cleaning. Make sure you adhere to the cleaning and maintenance guidelines provided by the manufacturer. This often entails cleaning the grinder's parts, brushing off coffee grinds, and correctly reassembling it.
Reassemble: Carefully put the grinder's parts back together in the opposite order after cleaning. Verify that the upper burr carrier is correctly positioned and that all screws and tabs are firmly in place.
Plug in and Test: After the grinder has been put back together, plug it in and make sure it is operating properly.

1 take the bell(bean container) carefully out. 2 disassemble the upper holder of burr 3 you will see now the burrs, clean good coffee remains than disassemble the burrs 4 after disassembling burrs clean good the lower and upper burr holder. 5 carefully switch on the grinder tan switch off(few seconds) during lower plate is rolling touch with marker the surface of burr holder very softly, if it is ok you will have complete circle / if it is deformed you will have incomplete circle( that you must compensate with letter tape ) after each correction you mark the burr with marker to see did you achieved perfect result. once you have lower burr in place you screw bolts in upper bur holder and assemble it back in his place.

Yes! I had the same issue with putting the burr in upside down and then twisting it an effectively "locking" it in there incorrectly. I tried the "knife" solution that worked for some people here, but it was placing the bean container back on and twisting counter clockwise that did the trick!

So glad I found this thread and didn't give up trying to fix my burr grinder (which we love).

Thanks to jaybayca!

1. take the bell(bean container) carefully out.
2. disassemble the upper holder of burr
3. you will see now the burrs, clean good coffee remains than disassemble the burrs
4. after disassembling burrs clean good the lower and upper burr holder.
5. carefully switch on the grinder tan switch off(few seconds) during lower plate is rolling touch with marker the surface of burr holder very softly,

• if it is ok you will have complete circle
• if it is deformed you will have incomplete circle( that you must compensate with letter tape )under the burrs you apply the letter tape
• after each correction you mark the burr with marker to see did you achieved perfect result. once you have lower burr in place you screw bolts in upper bur holder and assemble it back in his place.

Yes, this butter knife trick is the way that Capresso customer service recommends. Just to clarify the tip of the butter knife is the only portion inserted...DO NOT shove the entire blade into the grinder. Just the tip in the furthest to the right side of the "smiley face ****" that is on the top of the grinder without the clear plastic hopper. just imagine a birds eye view. Once you have the tip of the butter knife all the way to the right of the "smiley face ****" then just rotate counter-clockwise until it does not go any further. This should have dislodged the top part of the grinding cone and then simply pick it up with your fingers, flip 180 and put it in the correct way.

Needle in correct? Be sure your bobbin is not in upside down and turning the wrong way. Possibly the hook that the bobbicase fits in/on has been hit by a needle and caused a burr that is catching the thread as it comes around. The burr would have to be polished off or hook replaced. The machine could be slightly out of time also.

mazzers have 3 springs in grinder body, each one support for upper burr holder. check for them , if it is not the case than consider that the spring could come with coffee. often we see stones and metal parts geting between burrs.
clean it again and look good for 3 springs , if they are in their place, close the burrs to finest than go back for half of circle and grind coffee.

First, unlock and unscrew the upper burr carrier. Clean and check the upper burr by gently running your finger over the teeth in the cutting direction. It shoild feel moderately sharp. If it feels very blunt, look at the teeth under a good light. If you see a substantial "flat spot" at the top of the teeth, probably the burr set will need replacement.
For the bottom burr, clean carefully its teeth, and the entire area in which it is housed. Include the outlet orofice as well. You may find a lot of oily deposits within here, so just clean them off as best as possible.
When all is clean, insert the top burr holder back in place. Screw it down until both burrs touch, then back it off (say) 1/4 turn, and lock.
Put some beans in the top, and switch on. Adjust the top burr until the desired grind is obtained.
The ground coffee should feel like a coarse sand when close to the desired grind size.