Why Is My AC On But Not Cooling?

Free AC Replacement Estimates – Available in Richardson, TX

If your air conditioner is on but not cooling your home or business in Richardson, TX it could be due to a faulty compressor, a dirty filter, or a number of other possibilities. Either way, it can be frustrating and uncomfortable, especially during the hot summer months. Understanding the potential reasons behind this issue can help you identify the problem and decide whether you can fix it yourself or if it’s time to call in the professionals.

7 Common Reasons Your AC Is On But Not Cooling

Dirty Air Filters
Clogged or dirty air filters restrict airflow, causing your AC unit to work harder and reduce its cooling efficiency. This not only affects your comfort but also increases energy consumption, leading to higher utility bills. Regularly cleaning or replacing filters is essential for maintaining optimal performance and prolonging the lifespan of your system. Neglecting this simple task can lead to more significant issues down the road, including frozen coils or a complete system shutdown.

Thermostat Issues
If your thermostat is not set correctly or is malfunctioning, your AC unit may not be able to cool your space effectively. Ensure that the thermostat is set to “cool” and that the temperature is set lower than the current room temperature. Additionally, check that the thermostat’s location isn’t near heat sources or direct sunlight, as this can cause inaccurate temperature readings, leading to inefficient cooling.

Refrigerant Leaks
Low refrigerant levels can prevent your AC from cooling properly. A leak in the refrigerant lines will need to be repaired by a professional technician, who can also recharge the system. Operating your AC with low refrigerant not only reduces cooling capacity but can also cause damage to the compressor, potentially leading to costly repairs or the need for a full system replacement.

Dirty or Blocked Condenser Coils
The condenser coils in your outdoor unit can accumulate dirt, debris, and grime, which hampers their ability to dissipate heat. This buildup forces your system to work harder, reducing its efficiency and cooling power. Regularly cleaning the coils can restore your AC’s cooling efficiency and help prevent overheating, which can cause the system to shut down.

Faulty Compressor
The compressor is the heart of your AC system, responsible for circulating refrigerant. If it’s not working correctly, your AC unit may run but won’t cool your space. A failing compressor can be a serious issue that typically requires professional intervention, as it may involve complex repairs or even a complete compressor replacement.

Electrical Issues
Faulty wiring, a tripped circuit breaker, or a blown fuse can cause your AC unit to run but not cool. To avoid safety hazards, a licensed technician should address these issues. Electrical problems can also lead to intermittent cooling or cause your system to short cycle, which puts additional strain on the components and reduces overall efficiency.

Blocked or Leaking Ducts
If the ductwork in your home or business is blocked or leaking, cooled air may not reach the intended areas. This can result in uneven cooling or certain rooms feeling warmer than others. Inspect the ducts for any visible issues, such as disconnected sections or signs of wear, but a professional inspection may be required to identify hidden problems like leaks or insulation issues that could be compromising your system’s performance.

Things to Check Before Calling a Professional

Before you call a technician, there are a few things you can check on your own:

Thermostat Settings: Make sure the thermostat is set to “cool” and the temperature is set lower than the current room temperature.

Air Filter: Check if the air filter is clean and not clogged. Replace it if necessary.

Power Supply: Check the circuit breaker and any switches that control the AC unit to ensure that it is receiving power.

Keep Your AC Running Efficiently with Regular Maintenance

To keep your air conditioning system running efficiently and maintain any warranties, regular maintenance is crucial. At Quigley we offer comprehensive maintenance plans that include the following services and more:

Two Free Visits Per Year

Priority Service for Maintenance Plan Members

Discounts on Repairs

Full System Inspection and Cleaning

Thermostat Calibration

Filter Replacement

By investing in regular maintenance, you can prevent many common AC issues and ensure your system operates efficiently throughout the year. Learn more about our HVAC maintenance plans and how they can save you money in the long run.

Quigley is not just limited to maintenance; we offer a wide range of services to meet the needs of both residential and commercial customers:

New Residential and Commercial HVAC Installations

Full System Replacements

24/7 Emergency Services

Financing Options to Fit Any Budget

Coupons for Additional Savings

Quigley for Air Conditioner Services in Dallas, Texas

If your air conditioner is running but not cooling, don’t let the Texas heat get the best of you. From maintenance plans to 24/7 emergency services, Quigley is here to help. Call us today to learn more about our maintenance plan options, or schedule your free estimate for repairs or new installations. Let us keep your home or business cool and comfortable all year round.