I had one of my cups break off several years ago. I cannot access the roof simply, so I blew on it from a ladder, and the awning closed ,as it had with the 3 cups. It has worked fine ever since, about 5 years. I 'm not sure if its because it is well exposed to any wind just above entry door. I'm not sure on your system, but after Girard techs had done some repairs on my previous Beaver Patriots patio awning, which included some wiring, they also blew air acoss the anamometer, to make sure it closed on high wind, rather than opening. I'm not sure we're talking about the same wiring, but thats what they told me would happen if the wires were crossed, which would not be good.