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.

Can you run an AC with a mesh cover on it?

A mesh cover allows for proper airflow so it can be left on while the unit is running. Mesh covers also protect from the sun. This is beneficial for two reasons — your air conditioner will remain looking like new and it will keep the unit cooler, making its job of cooling your house easier.

Should I put a cover on my AC unit?

Though the units are certainly tested to withstand icy conditions, excessive snow and ice can be damaging to the coils over time. One thing to keep in mind is that any type of plastic or airflow-restrictive covering will actually promote rusting and internal moisture damage, and therefore should never be used.

Can AC units be covered?

If you are seeking to hide your unit from view, then the answer is yes! You can hide your HVAC unit. However, that doesn’t mean you can build a box around your system. Air conditioning units require something called free airflow.

Are AC covers bad?

AC covers don’t have proper ventilation which allows moisture to become trapped within the AC unit. As that moisture builds up, it also increases the risk of your unit becoming susceptible to rust and corrosion.

Should you cover AC unit in 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.

Why should you cover your air conditioner in the winter?


Another reason we see homeowners using AC covers is to prevent animals from nesting in the unit. A cover will actually make a nice, warm retreat from the cold for mice and other small animals.

How do I protect my air conditioner for the winter?

Put plywood over the top of the unit only to shield from snow and ice, weighing it down with bricks or rocks to keep in place. Install a wood awning or shelter attached to the building that covers the top of the unit. Plant shrubs around the unit to protect from wind and blowing snow.

How do I keep my outside AC unit from freezing in the winter?

How Can You Prevent Your HVAC Unit from Freezing Up in Winter?

  1. Change your air filter regularly. To keep your system efficient, change out the air filter at least once a month. …
  2. Clean the fan. …
  3. Keep your vents open. …
  4. Keep the condenser coils clean. …
  5. Schedule a professional inspection.

What are AC covers for?

Deterring debris: A cover will prevent debris like leaves, sticks, and other yard waste from blowing into your A/C unit. Preventing freezing: Covers help prevent water from directly resting on your coils and freezing, which could be damaging.