1 / 16
Replace the Furnace Filter
2 / 16
Protect the A/C Compressor or Risk Damage From a Falling Icicle
There's no reason to wrap your entire air conditioner for the winter, and many manufacturers advise against it because it can invite rodents and cause condensation, which can lead to early corrosion. But it's not a bad idea to set a piece of plywood on top of the unit to protect it from falling icicles. And see our maintenance guide to learn how to clean your air conditioners in the spring.