There are several issues here. And I'll try to cover a few of them
First: If the wind sensor is the "Lighthouse" type (It is a small thing that sticks up from the roof) they are a known issue.. I DO NOT THINK THIS IS YOUR PROBLEM (I will say way) but if you have that type, Or even if you don't, on the left (As you face it) side of the control box inside the coach should be a toggle switch, TURN IT OFF,
Now: Since you hear relays or more likely the brake release clicking
My guess is the motor is burned out. I'd recommend calling a service tech, one hour to replace.. you might have them check the controller as well.. Reason and logic.
A couple years ago there was a high wind advisory where I was parked, I hit the switch and rolled mine in.. 2 sites over he hit his switch.. NOTHING.
So I went over, had to bring my owner's manual bag cause guess what they forgot (The override cable) and we tried everything.. Like you we could hear the brake release but no joy moving it.. Came to the conclusion above and did the "last ditch" manual roll up procedure (Which by the way does cause damage,, Just so you know) Put in a call to Rachal Nordstrum (Nordstrum's mobile RV service) who came out the next day and did everythind I'd done With the same results (After un-doing the damage the manual roll up did) What can I say about Rachel, She knows her stuff and thinks like I do
Then she went to remove the motor, I told her I wanted to watch as I'd never seen it done.. She replied "Me neither" then "But how hard can it be, It's Mechanical" (Like I said we think alike)
She confirmed it was toast, and replaced it under warranty.. Then had to replace that one as well since the problem was the controller.
THERE ARE NO LIMIT SWITCHES on anything A&E, Dometic, power Gear or Kwikee makes, I see folks yammering about lmiit switches from time to time but they do not use them.
What they use is a current sensor in the control, when it senses the increase in current that goes with the motor stalling, it shuts off.. or at least it's supposed to.
His ... Did not.
So have them check the controller when they check the motor.