The microwave goes into Sleep mode after 3 minutes.
After 3 minutes the door is required to be opened and closed for the Voice Command feature to operate.
After the door is opened and closed start the voice commands (example: "Alexa, Reheat Y (cups of) X." X is the food name and Y is the food weight or quantity you’d like to reheat. For example, to cook 2 cups of Coffee, say “Alexa, reheat 2 cups of Coffee.” For Sensor Cook say "Alexa, Microwave X". "Alexa, Cook X.", To Melt/Soften say "Alexa, Melt Y ounce of X." "Alexa, Soften Y ounce of X." Please refer to the operating instructions for Auto Reheat Cooking Menu Voice commands.
If the Microwave is still unresponssive or "Device is Unresponsive" displays as a banner on the Alexa App. This occurs due to loss of connectivity with Alexa cloud services and may persist until the device is disconnected from its power source and reconnected.