As the weather cools down and the days get shorter, it’s time for homeowners to begin preparing their air conditioning units for fall weather. Keeping your AC unit in good condition is vital for maintaining a comfortable temperature in your home and avoiding costly repairs. Fortunately, there are a few methods to ensure that your air conditioning unit is ready for the cooler months. Here are several tips to prepare your unit this fall:

Change Your Air Filter 

A clean air filter can keep your air conditioning system running efficiently. Depending on your filter type, it should be replaced every one to three months. However, to maximize its performance and reduce energy costs, clean or change the filter monthly, especially when the seasons change. This will reduce the number of allergens and germs in your home, potentially lowering your energy bill by up to 15%.

Clean the Outdoor Unit

The outdoor unit of your AC system needs proper maintenance to keep it running efficiently. Start by cleaning the outside of the unit to remove dirt, leaves, and other debris that can get stuck in the condenser coils. Afterward, use a garden hose to spray off the condenser coils and remove any remaining dirt. Be careful not to bend any of the fins, as this will cause your unit to lose efficiency. Consider hiring a professional to clean the coils for the best results.

Check the Refrigerant Levels

Low refrigerant levels can cause your air conditioning system to struggle to keep your home cool. When charged properly with refrigerant, your AC system can keep up with your cooling needs. Otherwise, it can lead to higher energy bills and uncomfortable temperatures. It would help if you had your refrigerant levels checked each year by a professional technician. It must be done during your annual air conditioning maintenance appointment.

Look for Water Leaks

Always stay on alert for water leaks. Removing the heat for your home causes water to be drained from the coil inside. If you start to see water on the floor, it could signify a clogged drain or a disconnected pipe. This is when you call an HVAC technician for an air conditioner repair or replacement. You can also count on them for installations and maintenance, among other tasks.

Schedule a Professional Tune-Up

A tune-up ensures that your air conditioning unit is running efficiently. During the tune-up, the technician will check for any problems and make any necessary repairs. They will also check for any signs of wear and tear and other areas that need to be cleaned. The technician will also lubricate moving parts, check the refrigerant levels, and inspect the electrical connections.


Prepping your air conditioning unit in the cool months can be easy if you follow the tips mentioned earlier. Inspecting for leaks, changing the filters, cleaning the unit, and checking the thermostat are essential steps to take for the fall season are all critical steps to take when preparing your air conditioning unit for the fall season.  

Improve the air quality of your space with help from 4 Seasons Home Comfort. We provide a wide range of air conditioning services in Lethbridge, AB, and surrounding areas. No matter the project, we are here to help you find the perfect heating or cooling solution. Contact us today to inquire about our air conditioning installations.