Turning on the air conditioner only to find that the system fails to blow cool air is among the most common types of residential HVAC issues. If you're wondering what causes this malfunction, Bloomington Heating & Air offers the top five reasons for the AC not blowing cold air. If your air conditioner functions improperly, call our HVAC repair company — we provide prompt and effective 24-hour emergency ac repair, so you never have to endure sweltering conditions or wait until regular business hours to get cool relief. Schedule HVAC services today.
Five Reasons Your AC Is Running But Not Blowing Cold Air
If the air conditioner breaks down completely, it's apparent that the system requires immediate professional care. But HVAC system failure isn’t the only time to call our technicians for ac repair. If your AC is running but not blowing cold air, it may be a result of the following five common issues. Contact us today to speak with a trained technician about your system.
1. Clogged Air Filters
When was the last time you changed the air filters in your home? If you don’t remember — or if you've never changed them — it's likely that the air filters are clogged with airborne contaminants, pollutants, and debris which build-up over time. If the air filters are dirty or clogged, cool airflow from the HVAC system is obstructed. A dirty air filter prevents pulled air from flowing through the air conditioner, which inhibits the system from adequately cooling the home. Air filters require replacement multiple times throughout the year — enrolling in our residential HVAC planned maintenance program includes filter cleaning and replacement services, among a number of additional services to keep your system in tip-top shape.
2. Improper Thermostat Settings
If the AC is not cooling enough, or if it's not blowing cold air at all, it may be a result of improper settings on the thermostat. Setting the fan to "AUTO" will help reduce the cost of monthly utilities, but it might also cause the system to cycle the air instead of cooling it. In contrast, setting the thermostat to "ON" mode causes the system to run 24/7, which should restore cool air flow. If the thermostat displays nothing at all, you may have to change the batteries, or it might be an electrical issue — in this case, call a professional to resolve. If you need a thermostat replacement, we can help you choose between non Wi-Fi thermostats and Wi-Fi thermostats based on your preferences and requirements.
3. Insufficient Air Flow
If there isn't enough air coming through your vents, it doesn't matter how cold your AC makes the air flowing through it. Whether a small amount of cold air or no cold air blows through the system, the issue may be due to blocked or clogged air vents, which results in insufficient air flow. Inspect the air vents throughout the home to ensure each one is open. While you inspect each vent, check the inner portion of the vent for clogs comprised of dirt and other debris. If the vents are clogged and you are unable to remove the debris, call us for HVAC repair. Our technicians can perform a duct cleaning and check the AC fan for any potential issues.
4. Electrical Issues
A lack of cold air may be as simple an issue as a tripped breaker. Your air conditioner connects to two circuit breakers — one for the outside and one for the inside of the home. If the outside breaker trips and the inside breaker is still functioning, the air cannot be cooled. Reset the breaker to see if the cool air flow is restored. If no cold air flows through the vents, call a professional to inspect the issue. Consecutive resetting of the breaker could cause AC damage.
5. An HVAC Replacement Is Due
If you’ve owned your current cooling system for more than 10 years to 15 years, a lack of cold air could be due to the need for an HVAC system replacement. When an air conditioner reaches the tail end of its functioning lifespan, it likely will not be able to cool as it did when it was first installed. Our technicians can inspect the system to help you determine the best type of replacement for your household. We offer hassle-free air conditioning installation to help restore your home with cool air in no time.