The Samsung M187DN Oven has some known problems that occur often. Here are some easy to do solutions for the problems or error codes your Samsung might be giving you.
The oven is unresponsive to button presses.
The microwave does not heat the food as expected.
The microwave cooks the food unevenly.
Slight interference may be observed on radios or televisions when the microwave is operating.
Metal objects within the microwave cause sparking.
The child safety lock feature has been activated, preventing use.