Jul 10, 2025 | Michael Jestadt

9 Ways to Prevent AC Breakdowns in Concord CA

AC is not just a convenience but a lifeline for most of us during the summer season in Concord, CA. When the outside temperature increases, you don’t want your AC to stop working. A sudden breakdown of your AC can make your home hot and uncomfortable. Most homeowners don’t realize that the AC already has a problem until it stops working. Typically, most ACs exhibit signs such as uneven sounds, a foul smell, increased energy bills, and inconsistent cooling. However, we often do not notice these signs until the system shuts off. In this article, we have mentioned 9 ways to prevent AC breakdowns in Concord, CA. Let’s get started!

Ways to Prevent AC Breakdown

1. Cleaning or Replacing the Air Filters

Regularly checking and maintaining the air filters is the most effective way to ensure your AC runs smoothly. Air filters trap dust, pet fur, debris, and allergens, so over time, they become blocked, which obstructs airflow and causes the system to work harder and use more energy than normal. Most of the filters should be replaced within 30 to 90 days. However, if you have pets, people with allergies, or high usage of the system, then it may require frequent air filter changes.

Choosing the best quality air filters can offer better air filtration and last longer. Inspecting the air filters monthly, especially during the summer, can help avoid unnecessary repairs and improve air quality. Regularly changing the air filters can impact the overall efficiency and longevity of the AC.

2. Check Thermostat Settings

Check the thermostat regularly. Ensure it is not placed near heat sources, as this can cause inaccurate readings in the thermostat and lead to the system working harder than necessary. Use a regular room thermometer to check the temperature calibration. Check the batteries to ensure they are in working condition and replace them annually to prevent malfunctions.

If you’re using a traditional thermostat, consider upgrading to a smart thermostat for enhanced power savings and improved efficiency. You will notice a sudden drop in utility bills after installing a programmable thermostat. Additionally, you can access your HVAC system remotely using your mobile device from anywhere.

3. Cleaning the Coils

Regularly check the coils to ensure the efficient operation of your AC. Coils are responsible for carrying the hot air from inside, and thus, cooling happens. Check the evaporator coil and condenser coil for leaks, bends, dirt, or corrosion buildup, and gently clean them either with a vacuum or a smooth brush. Clean coils help the AC run efficiently.

Poor coil maintenance can lead to higher energy bills and breakdowns due to the wear and tear on the components. Regularly cleaning the coils improves the energy efficiency and helps the AC to last longer.

4. Keep the Area Around the Unit Clean

Keep the area around your air conditioner clean for efficient and reliable operation. Ensure that you remove all dirt, plants, and weeds that accumulate around the unit, as they block the airflow and can result in overheating of the unit. Trim all plants and shrubs up to 2 feet away around the unit to reduce strain and improve efficiency. Using a mulch or landscaping fabric can help prevent the growth of weeds and keep the area clean and tidy. A clean and clear space around your AC unit can significantly impact its overall performance.

5. Ensure Proper Sealing and Insulation

Proper sealing and insulation are important for maintaining comfort and lowering energy bills. Check your doors and windows for any leaks. If you find any gaps that cause leakage, adding weatherstrips and door seals can prevent air leakage. Also, look for attic insulation. If the attic is too thin or old, consider installing a new one to experience the difference, especially in the summer. Improve the overall insulation by caulking the windows. Reapply the caulk if the older one wears and cracks. By following these simple steps, we can make a notable difference in AC performance, utility bills, and comfort.

6. Check the Ductwork

Regular inspection of the ductwork is essential for maintaining your AC in optimal condition. Look for any damages and leaks, as these minor issues can affect airflow, causing your system to work harder and leading to higher energy bills. If there are any visible leaks or damages, seal them to prevent air leaks and the entry of small animals and birds, which can cause further damage. If you are unable to do it, consider reaching out to an HVAC expert to do the job.

Ensure you have the correct duct size for your home. If it is too large or too small, it can impact the performance and comfort of your living space. Check for any unusual sounds coming from the ductwork, as they may indicate the presence of debris or loose components. Addressing these minor issues can save you from expensive repairs and keep your AC in great shape.

7. Check Refrigerant Levels

Refrigerant is a substance present in your AC coils that is responsible for cooling your home. This level is important for consistent cooling. So, check for its levels and ensure it’s running well. Check for any leaks or spillages of the refrigerant. If you find oil spots or hissing sounds, there is a high likelihood of a refrigerant leak, which can lead to reduced efficiency and overheating of the unit.

If you don’t notice any oil spots and still want to check for leaks, use a pressure gauge to determine the refrigerant levels. If the levels are too low or too high, there is a chance of leakage. Ensure you are using the correct refrigerant in your AC, as the wrong type can damage the system. By checking the levels and leakages and knowing the type of coolant you are using, you can prevent major issues and maintain a cool, comfortable home.

8. Don’t Block the Vents

Ensure that all the vents are unobstructed for efficient running of your AC. A proper and consistent airflow is crucial for maintaining a comfortable temperature. Check your furniture placement to see if they are blocking the vents. If you find any, remove them to reduce the strain on the system. Check the window coverings. Heavy curtains can obstruct airflow, so ensure they are hung in a way that allows air to flow freely, or opt for lighter ones.

If you are a pet parent, check the vents for pet hair buildup. Vacuum the vents frequently to prevent pet hair from accumulating around them, ensuring efficient air circulation.

9. Schedule Regular Maintenance

Schedule regular maintenance to keep your air conditioner reliable and in optimal condition. Poor maintenance can lead to issues such as higher energy bills, uneven cooling, low air quality, and unexpected breakdowns. Avoid these issues by scheduling the maintenance at least once a year. If the unit is too old or outdated, it is advisable to schedule a service every 6 months.

Choose a reliable HVAC Contractor with a proper license to service your AC unit. Take references from your friends and family, or do market research to find the best one. Check for online reviews and testimonials for a second check. Some HVAC manufacturers require proof of routine maintenance to be eligible for warranty claims. Most of us view maintenance as an extra cost, but it can save your system from unexpected and expensive repairs in the long run.

Stay Cool This Summer With Our Professional AC Services

Now you know the ways to prevent AC breakdowns in Concord, CA. You can apply these tips to maintain your cool and comfort throughout the summer. Whether you need regular AC tune-up services or emergency AC repair, we’re here for you! At Smart Heating and Air Conditioning, we have experts dedicated to providing reliable, fast, and friendly service to keep your system running optimally. Contact us today to receive a complimentary quote.

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