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Winter AC Maintenance Checklist

Nov 10, 2023 | HVAC Services

Winter is right around the corner, and your HVAC unit may be in need of maintenance. Get ahead of the necessary preparations by knowing what to look for regarding your unit. 

Get ready for the changing of the seasons and promote long-term use of your HVAC unit with the proper care and check-up. Before contacting an HVAC professional, you can get the process started with a simple checklist. 

7 Ways to Ensure Your Comfort: An AC Maintenance Checklist

Looking over your HVAC unit can be confusing without prior knowledge of what to look for. Here are a few things to consider when considering maintenance for your HVAC system:

Check for Damage 

Both indoor and outdoor AC systems are susceptible to damage and wear and tear, although exterior units are even more exposed to threats such as harsh weather, birds and animals, and extreme temperatures. Check for any visible damage, such as bends or cracks, as well as leaves or nests that can inhibit the full function of your system. 

Replacing Air Filters 

Clean air filters are essential for effective HVAC systems. Whether it is in need of cleaning or complete replacement, it’s critical to have clean filters in place at all times. 


Inspect the ductwork of your unit and confirm any gaps or leaks that may be present. If needed, have your ducts cleaned, which usually requires the tools and expertise of an HVAC professional. They can also determine if your system needs resealing or other repairs.

Refrigerant Levels 

If your refrigerant levels are low, it could be a sign of a leak or a need for a refill. Ensure long-term, maximum comfort with the proper refrigerant levels in your HVAC unit by having them checked by a certified technician. 

Electrical Challenges 

If you know what to look for, safely inspect the electrical work of your HVAC unit, paying attention to any wear and tear or corrosion. If you suspect there may be an issue with the electrical, make an appointment with a professional service provider who can do a thorough and safe inspection.

Frequent Unit Testing 

One of the easiest ways to check for any issues with your HVAC unit is by conducting a test cycle. Pay attention to uncommon noises or lower-quality airflow. If there are any suspicions of your HVAC underperforming, have a technician run proper diagnostics. 

Maintaining Moving Parts 

Moving parts can corrode and function less efficiently if not properly lubricated. This is especially important for the unit’s fan, which is essential for adequate airflow.

The Mile High Membership 

When you join our Mile High Membership you get to enjoy a variety of perks and save money year round. For only $198 per year you will be able to benefit from the following:

  • 2 Annual Maintenance Visits 
  • Discounted Parts and Labor and Service Calls 
  • Priority Booking 
  • Alerts to other Special Offers First

For more information click here.

Schedule Regular Maintenance With Highland AC

Taking the initiative of checking your HVAC unit is the first step in preventing long-term damages and expenses. The next step is to get assistance from an expert before everything breaks down altogether. Scheduling consistent check-ups for your HVAC system saves you time and money for potential repairs. Members of our Mile High Membership are offered spring and fall maintenance in order to keep their homes safe and comfortable every season.

Highland AC takes pride in keeping Texas comfortable with efficient and professional HVAC services. We have more than 50 years of experience in providing high-quality comfort to residents and businesses in the San Antonio area. 
Whether your HVAC system is running smoothly and in need of a check-up or is having some trouble, Highland AC can take care of it. If you have questions on how to get started with your AC maintenance checklist or are in need of immediate services, contact Highland AC today.

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