What do I need to know about electric awnings?

We have an A&E/ Dometic electric awning. Ours did not have the ability to lower one side for water run off. I searched online and found there was a free kit to change the rear arm. Had a dealer down the road order one for us. Had it within a week at n/c.
Easy install, now the one side lowers. Just have to remember to straigten the arm before roll up.