I have a whirlpool stackable dryer model # LEW0050PQ3. It runs but doesn't heat up. Only cool air comes out. Its only 8 months old! I was told there is a reset button somewhere on the back but I cannot seem to locate it. Is this true?

Not aware of a reset button but is under warranty. I would call to get fix under warranty. I can inform you as to how to fix but you shouldn't have to.