Whirlpool clothes dryer no longer produces heat. Drum turns, light on inside of dryer works, sensors on front left panel appear to be operating to sense wetness, moisture and dryness along with cycle complete. I have manually re-set the home’s electrical panel breaker for dryer while dryer was off, and again while dryer was operating. No unusual noises while running. Dryer does not seem to be exhaling as strongly as it used to be while standing outside house and placing hand near outside vent.