It’s one of the most frustrating summer surprises: your air conditioner is running, but your home still feels uncomfortably warm. If cool air isn’t coming through your vents even though the AC seems to be on, it’s a sign something isn’t working as it should. Do you need AC repair in Bossier City, LA? Before you panic, here are a few simple troubleshooting steps to try. If those don’t fix the issue, it’s time to call in the HVAC professionals.
Try These Simple Fixes First
- Check the Thermostat Settings
Make sure your thermostat is set to “cool” and not “fan” or “heat.” It may sound obvious, but it’s surprisingly common for settings to get changed accidentally. Also, double-check the temperature setting. If it’s set too high, the system may not be turning on the cooling cycle. - Replace or Clean the Air Filter
A dirty air filter can significantly reduce airflow, which in turn limits your system’s ability to cool your home. If the filter is clogged, your system may overheat or freeze up, causing it to run without effectively cooling. Most filters should be checked monthly and replaced every 1–3 months. - Inspect Vents and Registers
Make sure your vents and registers are open and unobstructed. Blocked vents can restrict airflow and make rooms feel warmer even when the AC is technically working.
If you’ve gone through these steps and the air still isn’t cool, the problem likely lies deeper within your system and will require professional diagnosis and repair.
When It’s Time to Call an HVAC Expert
If your AC is running but not cooling, and basic troubleshooting hasn’t solved the problem, it could be caused by one of several more complex issues:
- Refrigerant Leak or Low Refrigerant
Your system needs refrigerant to cool the air. A leak or low level means the AC can’t effectively remove heat from your home. Handling refrigerant requires certification and expertise. This is not a DIY fix. - Frozen Evaporator Coil
If the coil inside your indoor unit is frozen, it can block airflow and prevent cooling. A frozen coil could result from dirty filters, low refrigerant, or airflow problems, all of which should be addressed by a professional. - Faulty Compressor
The compressor is the heart of your AC system. If it’s failing, your system may run but not cool. Compressor issues are complex and often costly, so early diagnosis by an HVAC technician is essential. - Electrical or Sensor Problems
Broken relays, bad capacitors, or malfunctioning sensors can prevent your AC from cycling properly or delivering cold air. These issues can also create safety risks and require professional service. - Dirty or Damaged Condenser Unit
The outdoor condenser coil needs to release heat from your home. If it’s covered in debris or damaged, it can’t do its job—and your home stays warm.
Don’t Sweat It—We’re Here to Help!
If your AC is running but not cooling, don’t wait for the problem to get worse. Continuing to operate a malfunctioning system can cause more damage and lead to costlier repairs or a full breakdown. Our team of experienced HVAC technicians is ready to diagnose and fix the issue quickly and correctly so you can stay cool and comfortable all summer long.
Contact us today to discuss AC repair in Bossier City, LA. Moon’s Air has provided whole-home comfort since 1971. Call us for service today—it’s good to be Mooned!
