A reliable commercial air conditioning system is essential for keeping your Reno or Sparks business comfortable during the hot summer months. When your commercial air conditioning isn’t cooling Reno and Sparks properly, it can disrupt operations, affect employee productivity, and make customers uncomfortable. At Paramount Heating and Air Conditioning, we’ve helped local businesses diagnose and fix common AC problems. Below, we’ll discuss the top reasons your commercial air conditioning might not be cooling properly.

1. Dirty Air Filters
Clogged air filters restrict airflow, making your system work harder and reducing its cooling efficiency.
Why This Happens:
Dust, dirt, and debris accumulate in filters over time, blocking airflow to your system.
How to Fix It:
Check and replace filters regularly to maintain optimal airflow. Commercial systems may need monthly filter changes.
2. Refrigerant Leaks
Low refrigerant levels are a common reason for commercial air conditioning systems not cooling in Reno.
Warning Signs:
- Warm air from vents
- Ice buildup on refrigerant lines
- Higher energy bills
What to Do:
Contact a Reno HVAC professional to locate and repair leaks and recharge your system’s refrigerant.
3. Faulty Thermostat
A malfunctioning thermostat can prevent your system from maintaining the desired temperature.
Signs of a Faulty Thermostat:
- Inconsistent cooling throughout your building
- AC not turning on or off as scheduled
Solution:
Inspect the thermostat settings and replace the batteries. If problems persist, consider upgrading to a programmable thermostat.
4. Blocked or Dirty Condenser Coils
Another reason for commercial air conditioning not cooling in Reno is that the outdoor unit or rooftop units’ coil is dirty. The rooftop unit or outdoor unit’s condenser coils release heat, but dirt or debris can block this process, reducing cooling efficiency.
What to Look For:
- Dirt or debris around the outdoor unit
- AC running longer than usual to cool
How to Fix It:
Clean the condenser coils and ensure the area around the unit is clear for proper airflow.
5. Leaky or Poorly Insulated Ductwork
Leaky ductwork can allow cool air to escape, making it harder to maintain a comfortable temperature.
Common Signs:
- Uneven cooling across your commercial space
- Higher energy bills without increased usage
What You Can Do:
Have your ductwork inspected and sealed by a Sparks HVAC expert to improve efficiency.
6. Overloaded System
A commercial air conditioning system that isn’t cooling may be because of it’s size. If the system is too small for your building, it will struggle to cool it effectively.
Why It Happens:
Undersized systems can’t handle the cooling demands of larger spaces or heavy usage.
Solution:
Upgrade to a properly sized system designed for your building’s cooling needs.
7. Electrical Issues
Loose wiring or failing components can prevent your system from operating correctly.
Symptoms:
- AC not turning on
- Intermittent cooling performance
What to Do:
Turn off the system and call a professional to inspect the electrical components safely.
Why Regular Maintenance Is Crucial
Routine maintenance prevents many common AC issues with a commercial air conditioning system not cooling, keeping your system efficient and reducing costly repairs.
Benefits of Quarterly Maintenance:
- Extends the lifespan of your system
- Improves energy efficiency
- Prevents unexpected breakdowns
Our Solution:
Join our Commercial Quarterly Maintenance Plan to ensure your system receives regular inspections and tune-ups. This plan is tailored to meet the specific needs of Reno and Sparks businesses, keeping your AC running efficiently year-round.
Learn more about Paramount Heating & Air Conditioning’s Commercial HVAC Services in Reno and Sparks as well as our Commercial Quarterly Service Maintenance Plans by clicking the button below!
Why Choose Paramount Heating and Air Conditioning?
At Paramount Heating and Air Conditioning, we specialize in commercial AC repair and maintenance for Reno and Sparks businesses.
What We Offer:
- Fast, reliable service
- Licensed and experienced technicians
- Transparent pricing with no hidden fees
Final Thoughts
If your commercial air conditioning isn’t cooling, addressing the issue quickly is essential to maintain comfort and productivity. From dirty filters to refrigerant leaks, common problems can often be fixed with professional help.
Contact Paramount Heating and Air Conditioning today to learn more about our Commercial Quarterly Maintenance Plan or to schedule an AC repair. Let us help keep your business cool and comfortable all summer long!
In need of emergency commercial cooling or air conditioning service in Reno or Sparks? Click the button below to schedule an appointment online or call us today at 775-309-4222!

