It could be that the strong winds may have off set the dish. Try turning the dish left and right very slowly to see if that clear the problem. First make sure you mark on the pole and lip of the mount to where you know the original place the dish rest.
Also there may be moisture somewhere in the servo. Check for loose connection of where the polarity wires are joined together. Check the servo motor for possible cracks where moisture could seep in.
Check all the connections between the 922 and dish to make sure they.re intact.
Wouldn't hurt to check the pole's plumpness as well, especially if the dish have been there quite some time.

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System 1: Pansat 2700a with a Moteck SG2100 HH motor drive and a Invacom universal .3 LNB mounted on a Primestar 1.2 meter dish. Also using a Primestar .75 meter with a .8 Channel Master LNB to receive AMC 3 channels (this is because of obstruction in its path!)
Using Extigy External soundcard to encode AC 3 audio.
System 2: Pansat 2000v as a slave receiver on the 4DTV GI 920 system that consists of a 1985 8 foot solid dish with a Cotorola II feed horn and 15 degree LNB. For C Band FTA use.