Delonghi EM821AAN-800watt The turn table has stopped spinning

Make sure the turntable guide is lined up properly and there is no debris caught in it. Examine the turn table bushing the tray sits on and make sure it is not worn or broken. Make sure the turntable is sitting down in the groove correctly. Lastly it may be the drive motor itself is bad. This is the small motor that turns the carousel. This motor is very difficult to replace and unless you are qualified you should not attempt this repair and leave it to a professional. This motor will cost from $40 to $75 plus the cost of having it replaced. You may want to consider buying a new microwave if this unit is over 5 years old. You could end up spending more to repair this one than a new one costs. Of course you can use it without the carousel.