Problems before 2 yrs old

The Microwave is 23 months old and the unit started to shut off a few weeks ago as follows: When selecting cook popcorn a message comes up that says "the current sensor feature has been interrupted by opening the door. To resume interruption close door and press start". We open the door and re-close it and then it shuts off and the numbers on the display are 8888. After a few seconds it says reset clock. Also, this problem is intermittent on other selections.

When the Microwave was working I thought it was the best looking/feature product for the $ but I see someone else is having the same problem so it seems to be a Quality issue. Looks likes GE might need to re-look at their six sigma design process on this one.