How to Open an RV Awning. Tweet. Improper setup and wind damage can ruin your RV awning. People often bypass the manual to try and open the awning as soon as they get to their destination.If you are a new RV owner or even a seasoned one, some simple tricks can help you set up your awning safely and quickly with minimum hassle.ow to Open an RV Awning. Tweet. Improper setup and wind damage can ruin your RV awning. People often bypass the manual to try and open the awning as soon as they get to their destination.