Few things are more frustrating during a scorching Las Vegas day than an air conditioner that pushes out warm air. In a climate where high temperatures are part of daily life for months, your AC plays a significant role in keeping your home or workplace safe and livable. When it fails to cool properly, discomfort sets in quickly, and indoor temperatures can rise to dangerous levels if the issue goes unresolved.
An air conditioner blowing warm air can be caused by several problems, ranging from minor maintenance issues to more serious equipment failures. Identifying the source quickly helps prevent damage to the system and minimizes energy waste. Acting early can also reduce the risk of a total breakdown during peak summer heat when HVAC services are in high demand.
Infinity Heating and Cooling is a trusted HVAC company serving Las Vegas and the surrounding communities. Our team focuses on honest diagnostics, precise repairs, and dependable long-term solutions. We are committed to helping our customers stay cool and comfortable, from repairs to tune-ups and system replacements.
Steps To Take When Your AC Is Blowing Warm Air
If your air conditioner is circulating warm air instead of cool air, inspect a few key areas. These steps can help identify the problem and determine whether you need professional help to restore proper cooling.
1. Check The Thermostat Settings
Start by verifying that the thermostat is set to “cool” and not “heat” or “fan.” Sometimes, the mode can be accidentally changed, especially if multiple people adjust the settings. Also, check the temperature setting to ensure it’s lower than the current room temperature.
2. Inspect The Air Filter
A dirty or clogged air filter restricts airflow and can cause the evaporator coil to freeze. When this happens, warm air may blow from the vents instead of cold. Replacing the filter allows for proper airflow and helps restore the system’s cooling ability. It also improves indoor air quality and supports better overall performance.
3. Look At The Outdoor Unit
The outdoor condenser unit is critical in removing heat from the refrigerant. The system may overheat or shut down if it’s covered in dirt, leaves, or debris. Clearing the area around the unit and gently cleaning the condenser fins helps ensure proper heat exchange and cooling operation.
4. Check For A Tripped Breaker Or Power Issue
Sometimes, the indoor unit runs, but the outdoor unit loses power. This can happen if a breaker trips or a disconnect switch is turned off. The system can’t complete the cooling cycle without power to the outdoor unit. Checking the circuit panel and ensuring all switches are in the correct position may solve the issue.
5. Look For Signs Of A Frozen Coil
If you notice ice on the refrigerant lines or around the indoor coil, airflow may be restricted, or refrigerant levels may be low. When the coil freezes, the system can no longer absorb heat from the air, leading to warm airflow. The safest course of action is to turn off the unit to let it thaw and call a technician to inspect the cause.
6. Examine The Ductwork
Damaged or disconnected ductwork leaks cool air into walls or crawlspaces, while warm air from unconditioned spaces can be drawn into the system. This results in uneven temperatures or warm air blowing from vents. A visual inspection of accessible ducts may reveal gaps, crushed sections, or insulation issues.
7. Test For Refrigerant Issues
Low refrigerant levels are a common cause of poor cooling performance. This usually points to a leak in the system, which requires professional repair. Signs include weak airflow, ice buildup, or hissing sounds near the lines. Adding refrigerant without sealing the leak will only provide temporary relief and can lead to more significant problems.
8. Check For Faulty Components
The system may run without producing cold air if the compressor, capacitor, or blower motor malfunctions. These components wear out over time, especially during intense summer usage. Inspecting the system’s mechanical and electrical components may be necessary if the AC is running but not cooling.
Why Professional Help Is Key To Restoring Comfort
In a Las Vegas summer, having a functional AC system isn’t optional—it’s essential. When warm air starts coming from the vents, it can be tempting to troubleshoot everything yourself. While some issues are simple to resolve, others require trained eyes and proper tools to diagnose accurately. Misdiagnosing the problem can lead to wasted time, increased repair costs, or permanent damage to critical components.
At Infinity Heating and Cooling, we bring experience and precision to every service call. Our technicians know what to look for and how to address many cooling issues. We focus on long-term solutions that protect your comfort and your equipment. By partnering with professionals like us, you gain peace of mind knowing your system will be restored efficiently and effectively.
For more information on AC breakdown prevention, call Infinity Heating And Cooling at (702) 291-2000 or contact us via this Online Form.
