5-in-1 wind propeller frozen

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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?
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Jim

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Posted 3 years ago

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George D. Nincehelser

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It's  a common issue with anemometers.    Wind vanes, too.

An occasional spray-down with silicon spray can help prevent snow/sleet from sticking.  Basically spray the cups and area above the solar panels, but be sure to avoid spraying near the temp/humidity sensor in the "wind tunnel" near the bottom of the unit.   Over-spray on the chip sensor can contaminate it.

When mine freeze up, I just accept it and wait for the sun to come out and take care of it.   Manually trying to remove ice can often break the wind cups, especially as they age and get brittle.   If you expect this to happen often, you might invest $5 in a spare set of cups.  (A spare vane is another $5)   That way you're down-time if they happen to break will be minimal.
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Jim

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Thanks!