Appliance Repair Questions? Ask a Technician for Answers ASAP
Yes My idea, I would start by opening the door and looking to see if the door switch actuator is not missing, and actualy click the switch by the actuator a few times to make sure it sounds like it is operating the switch.
Let Me know what You find, also supply a model number and approximate age with the next response if You would like Me to guide You further.
If that dryer is a month old DO NOT WORK on it that will void Your warranty call Maytag and have them send a service man.