Air Conditioning Heating and Ventilation Services

Why Is My AC Always Running?

Happy after fixing HVAC Unit that was always running ACHV Tampa

ACHV Services explains this common HVAC issue and what to do to stop the cycle! 

Customer education is key here at ACHV Services. You can trust our techs to take time to explain the issues and the necessary repairs, ensuring you understand how to maintain your system properly. This helps prevent future problems and extends the lifespan of your HVAC unit 

If your AC seems like it’s always running, then not only your unit is in need of maintenance, but (worse) you’re wasting money on energy bills! Let’s look at how to troubleshoot the problem if your AC is constantly cycling.  


Common Reasons an AC Runs Continuously 


  • Clogged AC filters 
  • Low Thermostats 
  • Faulty Unit Components 
  • Undersized for the Space  
  • Leaky Ductwork 
  • Poor Insulation 


One common reason an AC runs continuously is due to a dirty or clogged air filter. When the air filter is obstructed, it restricts airflow, causing the system to work harder to maintain the desired temperature. This can lead to the AC running longer than necessary to compensate for the reduced efficiency. The fix here: change your filters consistently. You may have to exchange them more often if you have pets or allergies.  

Another reason could be that the thermostat is set too low. If the thermostat is set to a temperature that is significantly lower than the outside temperature, the AC will have to work continuously to try to reach and maintain that setting, especially during extremely hot weather. Here’s more about smart thermostats so you can see why they are totally trending in homes across Tampa Bay! 

Faulty components within the AC unit, such as a malfunctioning blower motor or a failing compressor, can also cause the system to run continuously. These issues can prevent the AC from cooling effectively, leading to longer run times as the system attempts to compensate. For faulty components, the best fix is to give us a call. We’ll find & fix whatever it is affordably.  

Another reason could be poor system setup. If your AC is constantly cycling, it could be an undersized AC unit or even the ductwork. If the air conditioning system is not appropriately sized for the space it is intended to cool, it will struggle to reach the set temperature, resulting in prolonged operation times (and wear and tear). Plus, if there are leaks in the ductwork, cool air can escape before it reaches the intended rooms. This loss of cooled air forces the AC to run longer to achieve the desired temperature inside the house. 

Poor insulation in the home can lead to an AC running non-stop. If the home is not well-insulated, cool air can escape and warm air can enter, making it difficult for the AC to maintain a consistent temperature. This inefficiency forces the system to run more frequently.  

Low refrigerant levels can be another reason for an AC running constantly. If there is a refrigerant leak or the system is undercharged, the AC will struggle to cool the air efficiently, causing it to run longer to achieve the desired temperature. Refrigerant is not something we suggest you DIY. Again, the best solution is to call in the experts. 


Call ACHV Services to Fix these Issues 

We’re always there for your air; proudly servicing the entire Tampa Bay area

Our team of certified technicians is equipped to handle a wide range of HVAC problems. Whether it’s cleaning or replacing air filters, recalibrating or installing thermostats, or repairing ductwork, ACHV Services ensures that your system operates efficiently and effectively, reducing unnecessary cycling. 

Of course, ACHV Services also offers routine maintenance plans. Remember: regular maintenance can prevent many of the issues that cause an AC to run constantly! By scheduling periodic check-ups, we can catch potential problems early and keep your system in optimal condition year-round.  

In addition to repairs and maintenance, as needed we provide energy-efficient upgrades. If your HVAC system is outdated, trust our pros to recommend and install modern, energy-saving units that are less prone to constant cycling. This not only resolves the issue but also reduces your energy bills. 

So, call us to conduct a comprehensive diagnostic assessment of your HVAC system. This involves checking for common issues such as refrigerant leaks, dirty filters, and malfunctioning components. By identifying the root cause of why your AC is always running, our team can recommend the most effective solution.

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