There are two small batteries in the BT module of the 2020.5 or newer Carefree awning.
When they are going bad there is a low battery alarm that sounds every 30 seconds.
Instructions for replacing the batteries can be found in the Owners Manual for your awning.
An owner also has reported that a dealer suggested that before changing the batteries, try removing the fuse to the awning for a few minutes and then restoring the fuse and see if the beeping stops. Sometimes the beeping is because the module has lost its synch with the rest of the system.