Sounds like the awning might be out of alignment a tad. Even if the fabric shifts a little in the track the arms get out of alignment and stick. That arm has to drop by gravity when it opens, as it is at the weakest point on the gas shock to push it out. If the arm is out of whack even a bit, it will not open. Every once in a while the wind will slide my fabric down the tube a bit, and then the two awnings collide when they pass and they wont close up against the coach because the center of the arm doesn't align with the arm on the wall. I just give it a few tugs in the opposite way the wind blew it and it works fine.
I'm with you, sounds like the awning just needs fixed, not replaced.
PS my paint will last forever, its all covered in silicone!
Brad & Dory - Lone Tree, CO
CURRENT - 2013 Itasca Meridian 42E/2013 Wrangler 4dr Sahara
SOLD - 2014 Redwood 36RL/2014 F350 DRW