Panel is thinking the door is open when it is not

Has anyone seen an error on the control panel where it says door interlock. The door is closed and we replaced this part: KitchenAid Oven/Microwave Combo Door Switch 8204832
************************ Item #1018323

Read something about fuses, has anyone seen this error and know how to fix it?

http://www.justanswer.com/appliance/85aoq-kitchenaid-built-microwave-oven-model-number-kemc308kss04.html#re.v/457/

Seems to be a consensus that it’s fuse related.