Chosen Solution
The machine seems as if it’s working with no load or with very small amount, but as soon as I put in a normal amount of material to be ground then the blades do not turn. It’s like whatever connects the blades to the spinning shaft has failed or does not engage properly. Also how do I get the blades off?
the blades can be pulled off, pull hard,because the thread inside the plastic blade hub has stripped. Penny pinching on Krups part! you will now have to glue the blade back in place-epoxy resin worked for me.