Dimmer Shutting Down

New dimmer pd-6wdl

Connected to app fine like all the others i have. But doesn't kill the power when you use it. After a couple mins switch goes dark.

Tried two of them, thought maybe switch was just a dud. But both acting that way.

If i kill power and turn it on. The switch lights up and works with the app for a few mins. Then goes completely dark again.

Any advice?. Going to check all wiring first thing in the morn with fresh head.

I would call Lutron Tech Support. They can assist with issues like this. Number is on every Lutron box, or 800-523-9466