Hello everyone: This may seem like an over-simplization for a question, but, I would like to run it by you guy's anyways. A friend told me today that he was told by the people that he bought his central air condioner from to not cover the outdoor unit in the winter as it can corrode the contacts etc, that it should be left uncovered so it can breathe. Which is the best way? Could I have some opinions, please

Thorton