Most would agree, one of summer’s greatest pleasures is stepping into a cool space after hours of fun in the sun. But what happens when you discover your AC is no longer blowing cold air? It is easy to panic, but before you do, there are several troubleshooting steps you can take to diagnose and potentially resolve the issue. The following are some easy suggestions for what to do when your AC is not blowing cold air.
Check the Thermostat Settings
Start with the simplest possible problem. Make sure your thermostat is set to the cooling mode and the desired temperature is lower than the current room temperature. Sometimes, the problem is as simple as incorrect thermostat settings.
Ensure the Air Filter is Clean
A clogged or dirty air filter can significantly reduce your AC’s efficiency. A compromised filter restricts airflow, making it difficult for your system to properly cool the air. Make it a habit to replace your air filter regularly. Check it and replace if needed every one to three months, depending on usage and the type of filter you have.
Clean the Condenser Coils
The condenser coils are usually located in the outdoor unit of your air conditioning system. Dirt, debris, and grime can build up on these coils over time and impede heat transfer and hinder the unit’s ability to cool the air. You can clean the condenser coils with a gentle spray from your garden hose, however, if they are not readily accessible, cleaning them should be left to a professional.
Check for Refrigerant Leaks
If your AC is not blowing cold air, it could be due to low refrigerant level. The refrigerant in your system is what absorbs and releases heat. While refrigerant levels in the system should not diminish over time, if there is a leak somewhere in the refrigerant lines, the system may not have enough coolant to produce cold air. If you suspect a refrigerant leak, contact a licensed HVAC technician to locate and repair the leak and recharge the system with the correct amount of refrigerant.
Examine the Evaporator Coils
The job of your air conditioning system’s evaporator coils is to absorb heat from the indoor air. Over time, these coils can become dirty or frosted, reducing their ability to absorb heat. If you notice ice or frost on the coils, turn off the AC and let them thaw. Contact a professional to come check out your unit.
Ensure Proper Airflow
Blocked or restricted airflow can affect your AC’s performance. Check that there are no obstructions around the indoor and outdoor units, like furniture, curtains, or debris. Additionally, make sure all vents and registers are open and unblocked to allow proper air circulation.
Test the Capacitor and Compressor
Faulty capacitors or compressors can also be a reason why your AC is not blowing cold air. These components are best evaluated and repaired by a qualified technician. If you suspect an issue with either, it’s time to call for professional help.
Prevention is key when it comes to maintaining your AC’s performance. Schedule regular maintenance checks with a professional HVAC technician to keep your system running smoothly. They can identify and address issues before they become major problems. The best way to stay ahead of potential problems with your air conditioning is through a preventive maintenance plan.
Knowing what to do when your AC is not blowing cold air is critical – especially during the hottest days of summer. Many common issues can be resolved with some basic homeowner troubleshooting. If you are unsure about performing the checks listed above on your own, or if you run through them and are still having problems, consult a qualified HVAC technician who can diagnose and perform AC repair services properly.