Well the good news... in the near four years of this forums existence, the only real complaint with electric awnings is that the flat pitched can be unreliable in the wind and difficult to clean. The bad news is that because not a lot of motor failure, there isn't a lot of advice to share from previous postings regarding how to roll in a failed motor. Hopefully your luck will be as good as ours... over the past three and half years, we have used our tt and awning about four to six months out of each year. Fortunately, still no problem other than a little rust on one of the pistons that we keep on top of *knock on wood*.
In case your question doesn't get many suggestions, on a really quick search there was one thread on a motor failure
that I found though from last year that may be helpful. And, as always be sure to contact Jayco directly for updated info on your current year model electric awning