How to Prep Your Air Conditioner for Winter

October 11, 2023 2:55 pm Published by Leave your thoughts

The,Conditioner,Covered,With,Icicles,On,A,Yellow,WallAs the cooler months approach, it’s essential to take the necessary steps to prepare your air conditioner for winter. Properly winterizing your AC unit can help prevent damage, increase its lifespan, and ensure that it operates efficiently when the warmer season arrives. Here are some tips on how to prep your air conditioner for the winter months.

1. Clean and Clear the Outdoor Unit

The first step in winterizing your air conditioner is to clean and clear the outdoor unit. Over time, debris, leaves, dirt, and other obstructions can accumulate on and around the unit. This can restrict airflow and potentially cause damage. Start by turning off the power to the unit and then carefully remove any debris present. Gently hose down the unit to remove any stubborn dirt or grime. Make sure the unit is completely dry before covering it.

2. Inspect and Clean the Coils

The coils in your AC unit play a crucial role in the cooling process. Over time, dirt, dust, and other particles can accumulate on the coils, reducing their efficiency. Before winter arrives, inspect the coils and clean them if necessary. Use a soft brush or a coil cleaner solution to gently remove any dirt or debris. Properly maintained coils will not only help your AC unit operate efficiently but also prevent any potential damage during winter storage.

3. Check and Replace the Air Filter

A clean air filter is essential for the proper functioning of your air conditioner. Over time, dust and dirt can clog the filter, reducing airflow and straining the system. Before winterizing your AC unit, check the air filter and replace it if necessary. A clean filter will not only improve your indoor air quality but also help your air conditioner operate more efficiently when it’s time to use it again.

4. Insulate Exposed Pipes

Depending on your climate, freezing temperatures can be a concern for your air conditioner’s exposed pipes. Insulating these pipes can help prevent freezing and potential damage. Use foam pipe insulation or heat tape to cover any exposed pipes. Be sure to wrap the entire length of the pipe, including the bends and joints. Insulating exposed pipes will provide an added layer of protection during the winter months.

5. Turn Off the Power

To protect your air conditioner during the winter months, it’s crucial to turn off the power to the unit. Locate the circuit breaker that controls the AC unit and switch it off. This will prevent any accidental power surges or issues while the unit is not in use. Turning off the power will also help save energy and reduce your electricity bills during the winter months.

6. Cover the Unit

Covering your air conditioning unit during the winter months is an essential step in protecting it from the elements. A proper cover will prevent snow, ice, and debris from entering the unit and potentially causing damage. Invest in a high-quality, breathable cover specifically designed for air conditioners. Avoid using plastic or non-breathable covers, as they can trap moisture and lead to condensation, which can cause rust or other damage.

7. Schedule Maintenance

Regular maintenance is crucial to keeping your air conditioner in optimal condition. Before winter sets in, consider scheduling a professional AC maintenance service. A qualified technician will thoroughly inspect your unit, clean the components, check for any potential issues, and ensure that everything is in working order. The technician can also provide any necessary repairs or recommendations for improvement.

8. Monitor the Unit during Thaw Periods

If you live in an area where winters are mild, with occasional thaw periods, it’s essential to keep an eye on your air conditioning unit. During warmer days, remove the cover and inspect the unit for any signs of moisture or damage. Clear away any debris and ensure that the unit is functioning properly. If you notice any issues or concerns, contact a professional HVAC technician for further assistance.


Winterizing your air conditioner is a critical step in maintaining its efficiency and prolonging its lifespan. By following these tips, you can protect your AC unit from potential damage during the colder months and ensure it’s ready to provide cool, comfortable air when the warmer season arrives.

Got Questions? Let Us Help!

Locally owned and established in 1993, BLM Refrigeration Heating & Air Conditioning has been providing excellent service and a customer-friendly approach for over 20 years! At BLM Refrigeration Heating & Air Conditioning, we take pride in offering prompt, high-quality repairs for our customers. For every job we take on, we will send our specialists out to the site and determine what services need to be provided. Our services include air conditioning installation, repair, service, commercial air conditioning services, furnace repair, heating system installation, repair, service, and more! Call today!

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