I recently purchased a 30 inch wall oven and speed oven from Miele. Each time I use the master chef feature in both ovens to bake a roast it fails. Today I used the speedoven
using the master chef feature. The display started out at 1 hr 20 min and kept going doing in time. Then all of the sudden the display went from 50 minutes to saying it was ready. Took roast out the internal temperature with an independent therm. said 164 . Meat pink. The oven is under warranty. WHen I called tech support, the tech said that if the oven checks out it is user error and it would cost me $80. The situation I have described about alsoo happened twice on a pork loin roast in the wall oven. Has any one else had problems with this feature. This feature is an expensive upgrade.