I just encountered a problem with my ZWO 7x2 filter wheel. The Sky X which is controling my equipement is reporting "moving" as soon as I connect the filter wheel. The wheel stays blocked between the green and the blue filters. I opened the filter wheel casing and, sure enough, there is a fairly deep dent in the orange flexible o-ring that goes around the wheel (attached photo). This dent causes the wheel to jam there when it meets the little motor axis. I don't understand why there is a dent, my equipment (Celestron Edge HD14 on a Paramount MX+) stays in the observatory and there has been no equipment drop or collision with the pier or such.
I don't think I can repair the dent with any type of filler as this is flexible material. Does anyone know if I can source this O-ring other than through ZWO? I am trying to avoid the shipping delays and cost from China. If I can not find it anywhere in North America, then I will contact ZWO.