All, does anyone know what might be causing my Wolf coffee machine to make a very loud grinding noise followed by a message that says "Insert Infuser Assembly"? We have taken very good care of the machine over the last 27 months always careful to clean / descale consistently. Wolf outsources the manufacturing of their coffee machines to Delonghi. Apparently we are out of the 2-year full warranty period but there is a 5-year limited parts warranty. I would never buy one of these again - should definitely have spend a bit more for the Miele machine. Seems like a very poor product from Wolf.