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Is it okay to cover the back of aircon?

Author

Olivia House

Updated on March 15, 2026

Is it okay to cover the back of aircon?

Your air conditioner does not need any form of special protection, assuming you are not in some extreme situation that is, though some experts suggest it's not a bad idea to cover it during the winter, even with a plywood board weighted down with a couple of bricks.

Keeping this in view, should you cover air conditioner?

Your air conditioner is made to be open to the air. Covering your air conditioner will block proper air flow which can lead to mold growth on your evaporator coils. The mold can block proper airflow through your coils and decrease your air conditioner's efficiency.

One may also ask, can I cover the back of my aircon? Running an air conditioner with its cover on doesn't allow for this exchange of heat and condensation. It will put undo stress on the unit, which can damage internal components that keep the air conditioner running. Leaving the cover on can cause the unit to overheat since the heat has nowhere to go.

Then, when should you cover your air conditioner?

In the north (where A/C might only be used for 4-6 months of the year), one of the reasons you might be advised to cover your A/C unit after summer is to protect it from the weight of falling leaves, and from impending snowfall and ice build-up.

Can I cover my AC unit in the summer?

If you're considering covering your outside AC unit in the summer, whether to protect it from bad weather or to possibly save energy, the reality is that you should never cover your AC unit – not even during bad weather. For one thing, outdoor AC units are specifically designed to live outdoors.

Should I cover my air conditioner in the rain?

In most cases, the condenser unit should never be covered. Rain cannot harm the condenser, as long as the moisture can evaporate freely, and neither can the cooler weather of a Florida winter.

How can I hide my air conditioner?

Create a wood box with pieces of trellis along the sides, and mount it to the outside of the window around the unit. If you want to add a touch of nature, hide the air conditioner with plants by taking that same trellis box and adding an array of artificial plants just inside the top edge.

Can I put a roof over my AC unit?

The simple answer is anything you would put over the top of that condenser/compressor unit to lower the noise level and placed so as to not restrict airflow would be at such a height that it would be useless for the purposes intended.

How do I winterize my air conditioner?

The Dos and Don'ts for Winterizing Your Air Conditioning Unit
  1. Do: Shut off the power to the unit.
  2. Do: Remove any debris stuck in the unit.
  3. Do: Cover the unit with a sheet of plywood.
  4. Do: Wax the outside of the unit.
  5. Don't: Wrap the condenser in plastic.
  6. Do: Remove snow and ice through the winter.

How can I hide my AC balcony?

12 Ideas to hide your AC unit outdoors
  1. Garden structure.
  2. DIY pallet planter.
  3. Lattice vine wall.
  4. Cement block planter wall.
  5. Painted door screen.
  6. Ocotillo fence.
  7. Decorative painted pallet screen.
  8. Plantings: caladium and elephant ears.

Do I need to winterize my AC unit?

Throughout the winter – water, snow, and debris can gather around your AC unit and can clog, rust, and deteriorate mechanical parts of AC from inside. To keep them protected from inclement elements, it's necessary to winterize your AC unit every year.

How do I protect my outdoor air conditioner from sunlight?

Plant at least two or three trees on the side of your house where your AC is located. For example, a six- to eight-foot-tall deciduous tree will provide shade for your unit within a year of planting it. Plant a series of low-growing bushes and shrubs around the condenser, but not too close.

What should I put around my air conditioner?

How To Landscape Around My AC Unit
  1. Keep Plants 2-3 Feet Away. There should always be 2-3 feet of clear space when you landscape around your AC unit.
  2. Make Sure There's Plenty of Shade.
  3. Create a Windbreak with Evergreen Plants.
  4. Stay Mobile with Large Potted Plants.
  5. Use a Trellis, Screen, or Lattice Cover.
  6. Try a Gravel Garden.

How do I protect my outside AC unit from rain?

Keep Your Unit Covered and Protected

A simple tarp is usually enough to provide winter protection from most of the rain and debris that comes with winter storms in the Bay Area, but also keep things such as lawn furniture, decorations, and anything else that could be blown around by a strong wind away from your unit.

How do I protect my air conditioner from dust?

  1. Change your filters after a dust storm. Your air filter is the first line of defense to block that dust and gets hit the hardest.
  2. Rinse the outside unit after a dust storm.
  3. Check your ductwork for openings.
  4. Vacuum evaporator coils.
  5. Flush the condensation line.

Can I run a window AC inside?

It's possible, but not ideal. You'd need to circulate the warm, humid air from outside past the condenser (the part that hangs outside.) Two air channels or tubes to the outside would be required. Simply running a window A/C unit indoors will heat the room and reduce the humidity.

How do I stop my AC from lighting up?

A light baffle would be a black box or tube that's open on the side connecting to the AC unit, and open on the bottom or top to exhaust air, like a snorkel or straw. I've done this to quiet the noise from exhaust fans in networking equipment.

Can you cover your outside AC unit?

A Cover Could Do More Harm Than Good

Because moisture is all but guaranteed to seep into your air conditioner anyway, a cover can actually cause damage. Moisture inside the unit could become trapped, leading to mold.

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