The awning on our 2012 Berk has an auto dump feature plus the ability to tilt it with the buttons on the lower arm.
Only once did I see it do the dump feature. We almost never have the awning extended when raining. Was kind of neat. One side of awning rolled in like it was closing. After a foot or so it stopped and a flood of water flowed over the rear end of the awning. When it stopped the end of the awning went back to its normal extended position.
Marc & Jan
Molly, Abby & Katie | The Cocker K-9 Kids!|Toad 2014 Cadillac SRX
2012 Berkshire 360FWS, Brake Buddy Vantage|Wineguard Travler SK-3005