Is your awning full of water from the rain? If so, you might have to get out there and figure out how to drain it off; the weight of the water might be interfering with operation of your awning. What brand is it?
Are there any blinking lights on the control panel? I have heard of problems when the wind-sensor gets "flooded," which may have happened with the rain.
I suspected that.
I troubleshoot it by switching the power leads between the door awning and the patio awning.
I have determined that the 3310423.209B Dometic Awning Motor Assembly is bad.
A replacement part is $320.
For that price I will first try to repair it.
I removed a screw that held it to the mount on the end of the awning arm and was able to roll up the awning.
I have read that the equivalent motor can be bought for around $60. It's the same as a power window motor used in some cars or something. So see if you can find a cross-ref for the part number. Good luck to you.
I also know of an owner rebuilding his awning motor with new brushes, etc.
I had this happen to me twice. In both cases I removed the screw and rolled the unit up by hand and used large zip ties to hold it in place. I believe these motors cannot handle being in the fully extended position for an extended period of time. It needs to be cycled often. I think the problem may be that when fully extended, the "cup" and the end of the support arm collects water and it rests against the motor seal. I haven't done it, but I have considered drilling a drain hole in the "cup" so water can't be trapped.
I also removed the screw and rolled the unit up by hand and used large zip ties to hold it in place.
I will extend it to remove the motor and try to repair it.