How to select grind courseness for a DeLonghi DCG39 grinder

Ground coffee beans can squirrel their way into hard to reach places in a grinder and cause problems. I think it is clogged with grounds. Remove the beans. Reseat the burr (grinder). Reset the adjustment ring to 3. Lock itin place with the silver handle. Reinstall the hopper and beans. Here is a tutorial on more advanced cleaning and maintenance: You can skip the ad. Delonghi Magnifica Evo ' How to clean and maintain - YouTube

These machines are designed to fail, especially this particular model which is here on Fixya many times a week. The only way to fix is dealer service due to computers and software controlling them.

My Delonghi Magnifica was making a ratcheting /clicking noise when it should have been grinding. No coffee grind coming to diffuser, display showed '' Add more Beans''. I used vacuum cleaner to suck up the residual beans from the hopper and used wooden skewer to poke out any beans at top of the grinder. Did not solve. I then removed the protective hood over the inlet to grinder and used vacuum cleaner to remove all grind. With inspection light I could see a foreign object stuck in the grind. It was stuck fast. Using pointed noise pliers I was able to rotate the inner grinder in the reverse direction which released the object upwards and then gripped by PN pliers. Turned out it was a piece of plastic from the bean hopper lid which had broken off near to the front hinge. All working again and we're getting our fix nia.... AM McCooey

Depending on the model. You can find the instruction manual here:
https://www.delonghi.com/en-meia/customer-support/user-instruction-manuals

Have you tried grinding a few cups of uncooked rice through the mechanism to see if this will shift the dried on coffee grounds. It worked for a friend of mine after several attempts

I should imagine one of the safety switches are not closed. The lid of the maker must be on and the filler has to have its cap on and inserted in the machine.

u need it all set back up///needs grinder tanken out . if lugs are broken u need to put new grinder in....

the shear pin, which goes through the grinder blade base and the motor shaft has 'sheared' off the protect the motor from overload. The metal bits of the pin need to be removed from both the grinder part and the shaft, a new one inserted. It is a 'pressed fit', so it will be hard to remove.
After the bits are removed, a common 'roll pin' of the proper diameter should be a suitable replacement

Easiest way to set the grind on the super jolly is to remove the beans, turn towards fine until you can barely move the middle stem in the grind chamber, then turn towards course about 12-14 notches on the grinding adjuster(not numbers but notches between numbers). If you still cannot get a fine grind and it is not a brand new grinder replace burrs.

I just bought a brand new unit and as recommended I unscrewed the top bean hopper and the coffee ground container-cleaned and wiped.After that I screwed back everything and tried to grind some beans.The timer was ticking away but the grinder just refused to start.I switched off the main and unscrewed the hopper and carefully screwed it back.Halfway through,I noticed and felt that you must balanced and screwed it with a smooth movement until the the whole piece is in place.The grinder just started without a hitch.This grinder has a protection circuit whereby if any part is not properly installed it will not start.