How to Winterize an Outdoor Condenser Unit

If you have a central air conditioning system with an outdoor condenser unit, you may be thinking about winterizing it. There are a few steps you can take to protect and preserve the unit and give it a longer life.

You Will Need

  • Square of Canvas
  • Bricks
  • Board
  • Car Polish
  • Shop Vacuum
  • Broom

Step 1: Clean

Before you begin to clean, turn off the power source to the condenser unit. Use the broom to brush away as many leaves and other debris as possible. You can also use the shop vacuum for this task. When it is clean, hose it down and allow it to dry completely.

Step 2: Preserve

If you have a metal casing covering your condenser, you may want to put a coat of car polish on it to help prevent rust. Although these units are built to be outdoors and withstand extreme conditions, this extra measure will help.

Step 3: Cover

There is a lot of debate about whether or not you should cover the condenser unit. People against it say that the units are built to be outdoors and that it is not necessary. They also add that covering the condenser unit with canvas or plastic will seal in moisture and give rodents a place to live during the winter months.

People who think it's a good idea to cover the unit to cut down on cleaning in the spring usually say that putting boards over the mesh on the top is the best way to go. It keeps out leaves, dirt and moisture and cuts down on access for rodents.