What Should I Do If My Air Conditioner is Blowing Warm Air in Carbondale, IL?

Air conditioning is one of those things we take for granted. Our air conditioners hum away in the background, keeping us cool and comfortable, especially during Carbondale’s hot summers. But when that cool air sputters out and warm air blows instead, it can be a real shock.

If you’re currently experiencing this frustrating problem, don’t worry! Here at Heartland Heating, Air, and Plumbing, we’re Carbondale’s trusted team for all things HVAC. We have over 75 years of experience solving cooling problems, and in this blog, we’ll guide you through troubleshooting a malfunctioning AC. 

However, if the DIY approach doesn’t work, don’t hesitate to give Heartland a call for expert AC repair in Carbondale, IL. We’re always happy to help!

How to Troubleshoot an Air Conditioner Blowing Air

Try these quick and easy troubleshooting tips to get your AC blowing cool air again. You might be able to get your AC back on track and save yourself the time and money of a service call.

  • Check the Thermostat Settings: Ensure your thermostat is set to “cool” and the temperature is set lower than the current room temperature. Sometimes, the thermostat might accidentally be set to “heat” or a higher temperature.
  • Inspect the Air Filter: A dirty or clogged air filter can restrict airflow, causing the AC to blow warm air. Check the filter and replace it if it’s dirty.
  • Examine the Circuit Breaker: The circuit breaker for the AC unit might have tripped. Check your electrical panel and reset any tripped breakers.
  • Clean the Outdoor Unit: Dirt and debris can accumulate around the outdoor unit, hindering its ability to cool effectively. Clear any obstructions and clean the unit gently with a garden hose.

If these solutions don’t solve the problem with your air conditioning system, you probably need the help of an AC repair professional.

Why Your AC Might Be Blowing Warm Air (and How to Prevent It)

Understanding the common causes of warm air from your air conditioner can help you identify potential problems and better communicate what’s going on to your technician. It can also empower you to take action to prevent them from happening in the future. Here are some of the reasons your AC might be acting up:

Low Refrigerant Levels

Refrigerant is essential for the cooling process. If your system is low on refrigerant, it won’t be able to cool the air effectively. Low refrigerant levels usually indicate a leak, which needs to be addressed by a professional technician. Leaks can occur in various parts of the air conditioning system, including the coils and lines. It’s important to have a technician check for leaks, repair them, and recharge your system with the correct amount of refrigerant to restore its cooling capacity.

Dirty Condenser Coils

The condenser coils in your outdoor unit can get dirty over time, reducing their ability to release heat. When these coils are covered in dirt and debris, they can’t effectively transfer heat, causing your AC to not blow cool air. Regular cleaning of the outdoor unit can help prevent this issue. In addition to routine maintenance, consider installing a protective cover over your unit during off-seasons to keep debris at bay.

Faulty Compressor

The compressor is a key part of your AC system. If it’s malfunctioning, the entire cooling process can be disrupted. Signs of a faulty compressor include strange noises, the unit not turning on, or the AC blowing warm air. The compressor’s job is to circulate refrigerant through the system, and if it’s not working correctly, your AC can’t cool properly. 

Compressor issues can stem from electrical problems, overheating, or mechanical failures. This is a complex issue that requires professional repair, often involving detailed diagnostic work to pinpoint the exact cause of the malfunction.

Blocked or Leaky Ductwork

If your home uses ductwork to distribute air, blockages or leaks in the ducts can cause your AC to blow warm air. Air ducts can become obstructed with dust, debris, or even pests. Leaky ducts allow cool air to escape before it reaches your living spaces, making it seem like the AC isn’t working properly. Sealing leaks and cleaning the ducts can help maintain proper airflow and ensure that cool air is delivered efficiently throughout your home.

Electrical Issues

Electrical problems within the AC unit can also cause it to blow warm air. Faulty wiring, blown fuses, or tripped circuit breakers can disrupt the power supply to essential components like the compressor and fans. These issues can prevent your AC from cooling effectively. Electrical problems can be dangerous to handle on your own, so it’s crucial to call a professional to inspect and repair any electrical faults safely.

Regular AC Maintenance Prevents Many Repairs

We strongly encourage every Carbondale homeowner to invest in regular maintenance for their HVAC systems. Routine maintenance can significantly reduce the likelihood of repairs by keeping your air conditioning equipment in top condition.

In Southern Illinois, where temperatures rise earlier and last longer in the year, your system works hard. Regular maintenance helps catch issues early, preventing them from turning into major problems.

At Heartland, we offer tune-up services that include comprehensive inspections and cleaning of your AC system. Our Heart of Your Home Club provides even more benefits, such as pre-scheduled appointments, priority emergency service, and exclusive discounts. 

With regular AC maintenance from our expert technicians, you can ensure your entire system runs efficiently, providing reliable cooling when you need it most.

Count on Heartland for Your AC Repair in Carbondale, IL

If your air conditioner isn’t cooling your home and you can’t solve the problem yourself with some simple troubleshooting, call Heartland Heating, Air, and Plumbing. Our team gets right to work, figuring out the problem and providing honest recommendations on what’s best for your home. If a replacement is needed, we’ll guide you through the process from start to finish.

Don’t suffer through the heat this summer. Stay cool and schedule your AC repair in Carbondale, IL, with Heartland today. We’ll do everything possible to restore cool air to your home as quickly as possible.