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In the scorching heat of Las Vegas, a functional air conditioning system isn’t just a luxury; it’s a necessity. Picture this: You come home after a long day under the blazing sun, looking forward to the cool comfort of your air-conditioned oasis. But to your dismay, you find that your AC is running tirelessly, yet the air remains lukewarm. Frustrating, isn’t it?

Table of Contents

  • Common Causes of AC Running but Not Cooling
  • Advanced Troubleshooting Techniques
  • Navigating the Troubles of Your AC System
  • FAQs

Common Causes of AC Running but Not Cooling

Insufficient Refrigerant Levels

Refrigerant serves as the lifeblood of your air conditioning system, absorbing heat from indoor air and dissipating it outside. However, low refrigerant levels can spell trouble, leaving your AC struggling to cool effectively. Las Vegas’s blistering heat exacerbates this issue, making proper refrigerant levels crucial for optimal cooling performance.

Signs of low refrigerant include tepid air blowing from vents, ice buildup on the evaporator coil, and increased energy consumption. Several factors can lead to refrigerant leakage, such as corrosion in copper tubing, poor installation practices, or physical damage to the unit.

To address this issue, enlist the help of professionals like Infinity Heating and Cooling. Our expertise in refrigerant diagnosis and replenishment ensures your AC operates at peak efficiency, keeping your Las Vegas home cool and comfortable.


Dirty Air Filters

Las Vegas’s desert climate brings with it a myriad of airborne particles, from dust to pollen, which can quickly clog up your AC’s air filters. These filters play a crucial role in maintaining indoor air quality and protecting your HVAC system from debris. However, neglecting filter maintenance can impede airflow, leading to reduced cooling capacity and increased strain on your AC.

To prevent this, make a habit of checking and replacing your air filters regularly, ideally every 1 to 3 months. 


Faulty Thermostat

The thermostat serves as the command center of your AC, regulating temperature settings to maintain comfort levels in your Las Vegas home. However, a malfunctioning thermostat can throw a wrench into your cooling plans, causing your AC to run incessantly without achieving the desired temperature.

Signs of thermostat issues include inaccurate temperature readings, unresponsive controls, or frequent cycling on and off. While DIY troubleshooting is an option, seeking professional assistance ensures precise diagnosis and calibration of your thermostat, restoring optimal cooling performance to your Las Vegas abode.


Blocked Condenser Unit

The condenser unit, typically located outdoors, plays a crucial role in releasing heat absorbed from indoor air. However, Las Vegas’s desert landscape can pose a challenge, with debris and vegetation often obstructing the condenser’s airflow. This impediment hampers heat dissipation, leading to inadequate cooling despite the AC running.

Regular maintenance, such as clearing debris and trimming vegetation around the condenser, can mitigate this issue. 


Advanced Troubleshooting Techniques

Refrigerant Leak Detection

Refrigerant leaks pose a significant threat to both AC performance and environmental safety. Detecting and repairing these leaks requires specialized equipment and expertise, making professional intervention imperative. Signs of refrigerant leaks include hissing noises near refrigerant lines, oil stains on AC components, or frost accumulation on the evaporator coil.

A professional’s skilled technicians, such as Infinity Heating and Cooling, can employ advanced leak detection methods, such as electronic leak detectors or ultraviolet dye tests, to pinpoint and rectify leaks promptly. Trust their expertise to safeguard your AC’s performance and the environment in Las Vegas.


Compressor Issues

As the heart of your AC system, the compressor plays a pivotal role in cooling your Las Vegas home. However, compressor malfunctions can disrupt this process, manifesting as loud noises, warm air from vents, or tripped circuit breakers. Electrical issues, refrigerant leaks, or overheating can contribute to compressor problems, necessitating professional diagnosis and repair.

Infinity Heating and Cooling’s technicians possess the know-how to tackle compressor issues effectively, whether through repair or replacement. Rest assured, your Las Vegas home will once again enjoy efficient and reliable cooling under their expert care.


Evaporator Coil Maintenance

The evaporator coil serves as the site of heat exchange in your AC system, absorbing heat from indoor air to facilitate cooling. However, dirty or damaged coils can impede this process, resulting in reduced cooling capacity and increased energy consumption. Signs of evaporator coil issues include ice buildup, reduced airflow, or water leakage.

Regular coil maintenance, such as cleaning and inspection, is essential to ensure optimal AC performance in your Las Vegas home. Infinity Heating and Cooling offers professional coil cleaning services, keeping your system running smoothly even amidst Las Vegas’s sweltering heat.


Ductwork Evaluation

Your AC’s ductwork plays a crucial role in distributing cooled air throughout your Las Vegas home. However, leaks, improper insulation, or design flaws can compromise airflow and efficiency, leading to uneven cooling and increased energy bills. Regular ductwork maintenance and inspection are essential to address these issues and ensure optimal performance.

Infinity Heating and Cooling’s comprehensive ductwork evaluation services identify and rectify any issues plaguing your system. From sealing duct leaks to enhancing insulation, trust our expertise to optimize airflow and comfort in your Las Vegas home.


Navigating the Troubles of Your AC System

In Las Vegas’s unforgiving climate, a malfunctioning air conditioning system is more than just an inconvenience; it’s a recipe for discomfort and frustration. If you find yourself grappling with an AC that’s running but not cooling, don’t sweat it—Infinity Heating and Cooling has your back.

From diagnosing common culprits like low refrigerant and dirty air filters to tackling advanced issues like compressor malfunctions and ductwork deficiencies, our team of experts is equipped to handle it all. Trust Infinity Heating and Cooling to restore comfort and tranquility to your Las Vegas home, one cool breeze at a time.

Don’t let a malfunctioning AC leave you sweating in the Las Vegas heat. Contact Infinity Heating and Cooling today for professional repair, maintenance, or installation services. Stay cool, Las Vegas!

Fill out our form here or give us a call at 702.291.2000!



  • How often should I replace my air filters?

Air filters should ideally be replaced every 1 to 3 months, depending on factors such as filter type, household pets, and indoor air quality.

  • Can I refill my AC’s refrigerant myself?

It’s not recommended. Handling refrigerant requires specialized equipment and training to ensure safety and proper handling of the refrigerant.

  • What is the average lifespan of an AC compressor?

The average lifespan of an AC compressor is typically around 10 to 15 years with proper maintenance. However, factors such as usage patterns and environmental conditions can affect longevity.

  • Why is regular ductwork maintenance important?

Regular ductwork maintenance ensures efficient airflow, prevents energy waste, and helps maintain indoor air quality by reducing the circulation of dust, allergens, and pollutants.

  • How can I improve my AC’s energy efficiency?

Several steps can improve AC efficiency, including regular maintenance, proper insulation, sealing duct leaks, using programmable thermostats, and upgrading to energy-efficient equipment.


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