Error Code

I don't have a manual on the newest dryer like you have, but one of the models just older than yours has a F23 code that indicates a shorted thermistor.( temp sensor )
Since it is new you need to call for service. They will usually look up the code and tell you if it is anything you need to check but most likely you will need a repairman to repair it in warranty.
Post back if you have any questions.

Here's some magic help on the dryers: I have a duet sport- Whirlpool hides the complete service manual inside the cover at the bottom front of the machine- remove the bottom 2 screws, drop the cover & you have all test & service instructions--- (:

Found wire harness pinched between blower housing and base of dryer....no more F23