
Storing a window AC unit is a crucial step to maintain its efficiency and longevity. It's essential to clean the unit before storing it to prevent dust buildup.
A dirty unit can lead to poor performance and increased energy consumption. Cleaning the unit regularly can help prevent this issue.
To store a window AC unit, you'll need to disconnect it from the power source and remove any filters. This will prevent any accidental start-ups and keep the unit safe during storage.
Proper storage can extend the unit's lifespan by up to 5 years.
Removing the AC Unit
Removing the window AC unit from the window is the first step in preparing it for storage. Be cautious when handling the unit, as it's heavy and could cause injury if not handled properly.
Take your time and position the unit away from the wall so you can access all its parts. A drop cloth or thick tarp should be laid underneath the unit to protect floors and carpets from the condensation that may drip from it.
Removing the AC unit without assistance is not recommended. It's best to have another person help you with this task to ensure your safety.
If you're not sure how to remove your window AC unit, refer to your owner's manual for specific instructions. The manual will guide you through the process and provide any necessary precautions.
Preparing for Storage
Before you start storing your window AC unit, it's essential to prepare it properly to prevent damage and ensure it runs well when the new cooling season begins. Once outside temperatures drop below 60 degrees Fahrenheit, it's time to remove your window air conditioner and prep it for storage.
Remove the unit from the window with care, never attempting removal without the assistance of another person. Inspect the unit for damage and repair broken components.
To clean the condenser coils, follow the owner's manual instructions to remove the outer cabinet, and use compressed air or a soft bristle brush to remove dust and dirt. Don't use a pressure washer, as the high pressure may bend the delicate fins. Clean the condensation pan at the base of the unit with warm water, dish detergent, or white vinegar, and make sure it's thoroughly dry before storing.
Curious to learn more? Check out: How to Remove a Window Ac Unit
Store in a Dry Place

Storing your air conditioner in a dry place is crucial to prevent damage.
Basements, attics, and garages are excellent options for storing an air conditioner as long as they are dry.
Moisture can cause irreparable damage to the unit, so it's essential to keep it away from sources of moisture.
If you need to store an air conditioner in a humid area, consider adding a dehumidifier to prevent condensation from forming on the unit.
AC Unit Storage
Store your air conditioner unit in a dry place, away from any sources of moisture, like basements or attics. Moisture can cause irreparable damage to the unit.
Consider adding a dehumidifier if you need to store an air conditioner in a humid area. This will help prevent condensation from forming on the unit and causing rust or mold.
Remove your window air conditioner from the window once outside temperatures drop below 60 degrees Fahrenheit or lower. This will prevent premature wear and broken components.
Never attempt to remove a window air conditioner without the assistance of another person. It's a heavy unit that requires two people to safely remove.
Inspect the unit for damage and repair broken components. You can find model-specific troubleshooting and repair help for air conditioners on websites like RepairClinic.
Clean the condenser coils by blowing compressed air or using a soft bristle brush. Don't use a pressure washer, as the high pressure may bend the delicate fins.
Use warm water, dish detergent, or white vinegar to remove dust, lint, and dirt from the condensation pan at the base of the unit. Make sure the pan is thoroughly dry before storing.
Store window air conditioners during the winter, as leaving them in place can cause drafts and lead to increased energy consumption.
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Covering the AC Unit
You should cover your window air conditioner with a breathable material, such as a tarp, to keep dust, grime, and debris out while allowing any water to escape.
If you can't take the air conditioner outside, use a cover specifically designed to protect AC units from weather damage.
If you're storing the unit in a garage, be aware that small animals and insects might seek shelter inside, causing damage to the wiring.
A cover will also protect the unit from drafts, which can increase energy consumption and reduce its lifespan.
You can find breathable materials or AC covers at local stores or online.
Remember to unplug the system and don't use it when it's covered.
Using a cover will help extend the life of your air conditioner, making it a worthwhile investment for your cooling needs.
Take a look at this: How to Cover Window Ac Unit
Winter Storage
It's essential to store your window AC unit properly to prevent damage and ensure it runs well when the new cooling season begins. Once outside temperatures drop below 60 degrees Fahrenheit or lower, it's time to remove your window AC and prep it for storage.
Read the unit's owner's manual for care, de-installation, and storage instructions. This will give you a better understanding of how to properly prepare your AC unit for the off-season.
Remove the unit from the window with care, and never attempt removal without the assistance of another person. It's also a good idea to inspect the unit for damage and repair any broken components.
Clean the condenser coils by blowing compressed air or using a soft bristle brush. Do not use a pressure washer, as the high pressure may bend the delicate fins.
Use warm water, dish detergent, or white vinegar to remove dust, lint, and dirt from the condensation pan at the base of the unit. Make sure the pan is thoroughly dry before storing.
Store the window AC unit in an attic, basement, or utility room. Garages are not a wise place to store AC units, as small animals and insects may seek shelter inside and cause damage.
If you must keep the unit mounted in the window during the off-season, be sure to use an air conditioner cover that's specifically designed to protect AC units from weather damage.
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Frequently Asked Questions
Should you drain the AC before storing?
Drain the AC when it's full or getting ripe to prevent bacterial growth and maintain cleanliness. Regular draining and cleaning are essential before storing the AC.
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