As temperatures rise, a fully functioning air conditioning system becomes essential for comfort—and even safety. Before the summer heatwaves roll in, now is the perfect time to inspect your AC system to ensure it’s ready to perform efficiently all season long.

Here are 4 key things you should check in your air conditioning unit before summer heats up—because no one wants to deal with a breakdown in the middle of a heatwave!

1. Check and Replace Your Air Filters

One of the simplest yet most crucial maintenance tasks is replacing your AC’s air filters. Dirty or clogged filters restrict airflow, reduce efficiency, and can even affect your indoor air quality.

What to Do:

• Check your filters every 1–3 months

• Replace them with high-efficiency or HEPA filters if possible

• Write the replacement date on the filter to track changes

Clean filters help your AC cool faster and reduce energy costs.

2. Clean the Outdoor Condenser Unit

Your outdoor AC unit (also called the condenser) can collect dirt, leaves, and debris over time, especially during the fall and winter. This buildup can block airflow and make your system work harder than it should.

Steps to Take:

• Shut off power to the unit before cleaning

• Remove visible debris around and on the unit

• Use a garden hose to gently rinse off dirt from the fins

A clean condenser = better performance and longer system life.

3. Test the Thermostat

Before the hottest days arrive, make sure your thermostat is working properly and accurately reflecting the indoor temperature.

Quick Tips:

• Replace thermostat batteries if needed

• Consider upgrading to a smart thermostat for more control and energy savings

• Set it to cooling mode and ensure the system kicks on correctly

Smart thermostats let you save energy and cool smarter, not harder.

4. Schedule a Professional AC Tune-Up

Even if everything seems to be running fine, it’s a smart idea to schedule a professional HVAC inspection. A certified technician can spot early warning signs and make adjustments to ensure peak efficiency.

What They’ll Check:

• Refrigerant levels

• Electrical components

• Ductwork for leaks

• Fan motor and blower performance

Regular tune-ups can prevent costly repairs down the road and extend the life of your unit.

Getting ahead of potential AC issues now can save you stress, discomfort, and money during the hottest months. Whether you’re a homeowner or preparing a property for sale, a well-maintained air conditioning system is a major asset.

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