When summer temperatures rise in Eugene, the last thing you want is warm air blowing from your air conditioner. It’s frustrating, uncomfortable, and usually a sign that something’s not right with your cooling system. But don’t panic—there are several common reasons your AC may stop cooling, and most are fixable with professional attention.
At Associated Heating and Air Conditioning, we help homeowners throughout Eugene get their comfort back fast. If your AC is blowing warm air, here are some likely culprits—and how our expert team can get things working properly again.
1. Dirty or Clogged Air Filters
One of the most common causes of AC problems is also the easiest to fix. Dirty air filters restrict airflow, which can cause your system to overheat or freeze up. The result? Less cool air—or none at all.
Solution: Check and replace your air filter every 1–3 months, especially during peak usage seasons. If the issue persists after a filter change, it may be time to call in the pros for a deeper look.
2. Thermostat Problems
Sometimes the issue isn’t with your AC unit—it’s with the thermostat. If it’s set incorrectly, malfunctioning, or in direct sunlight, it could be telling your system to stop cooling even when your home is still too warm.
Solution: Double-check your thermostat settings and battery life. If you have a programmable or smart thermostat, make sure it’s calibrated correctly. Our technicians can test your system’s controls and make any needed adjustments.
3. Low or Leaking Refrigerant
Your AC needs refrigerant to absorb heat from your home and push it outside. If there’s a leak or the refrigerant level is low, your system can’t effectively cool the air.
Solution: This is not a DIY fix. Refrigerant issues require licensed HVAC professionals to locate the leak, repair it, and recharge your system. At Associated, we’re EPA-certified and experienced in handling refrigerant safely and correctly.
4. Electrical or Circuit Issues
If the outdoor condenser unit loses power due to a tripped breaker or electrical fault, your system may continue to run indoors without cooling. That means the fan blows—but only warm air.
Solution: Check your breaker box to see if a switch has flipped. If everything looks normal, call our team to inspect the electrical connections and ensure everything is running safely and efficiently.
5. Dirty Condenser Coils
The outdoor condenser coil releases the heat your system removes from your home. If it’s coated in dirt, debris, or vegetation, it can’t do its job—causing your system to overheat and stop cooling effectively.
Solution: Gently rinse your outdoor unit with a hose, being careful not to bend the fins. For thorough cleanings and maintenance, trust our professionals to keep your system running at peak performance.
Trust Associated Heating and Air Conditioning for Expert AC Repairs
When your AC stops cooling in the middle of an Oregon summer, fast and reliable service matters. At Associated Heating and Air Conditioning, we don’t just guess—we diagnose. Our trained technicians use advanced tools and years of experience to pinpoint the problem and fix it right the first time.
Contact Associated Heating and Air Conditioning, Inc. today for AC repair you can depend on.