The wind vane on my 5-in-1 has rusted up to where it won't move, again. I bought my first 5-in-1 in January of 2015 and had to replace it when I had this same issue. Of course there's no repair or replacement parts for this part of the 5-in-1. Does this happen to everyone? Anyone have any ideas for a solution? I'd really rather not have to replace these units every year or two.