I have a 5-in-1 and have it mounted above my shed. Today we got some rain and the temps dropped and it started freezing and eventually turned into wet snow and will drop to 10 tonight. It is very windy, with a high wind warning, but it appears my propeller has frozen up. I went outside and was able to loosen it and spin it, but it is stiff and barely moves with a gust. Is there a recommended way to keep this clear in freezing rain? Maybe spray with silicon spray? If so, where?