Don’t sweat it
A common question asked this time of year is “Should I cover my air conditioner for the winter?” Well the answer is yes, if it is covered properly. Many times I have seen air conditioners covered in such a way that it actually does more harm than good. You should never wrap you air conditioner in such a way that it can not breathe. Using clear plastic or the in-expensive tarps we see at local DIY stores would be an example of a cover that can not breathe.
Remember, the cabinet of your air conditioner is made of some sort of painted steel. Steel will rust and paint will peel if it is not given the chance to dry. Inside the system there are electrical switches, wires and other components such as motors and bearings. Here again ventilation is a must after a rain or snowstorm so moisture can evaporate naturally and quickly. Otherwise these electrical parts will corrode or pit leading to a potential service call next summer.
So should you cover your air conditioner this winter? Yes, but do it right. Sometimes just a simple piece of plywood on top of the air conditioner will keep out sticks and leaves and help shed water. But the best way to protect your system for winter is with a custom made cover that is made for your exact model air conditioner. These covers have flaps near the top to keep out water but will allow natural ventilation. The cover should be designed slightly short of the bottom of the unit and will fit a little loose to provide ventilation. Custom covers protect your finish from UV rays, small hail, and small icicles should they fall. And of course it will keep leaves and sticks from falling down behind difficult to remove panels and louvers. Custom covers install easily with hook and loop straps