Why is My AC Not Blowing Cold Air?

Men with headeche from Air conditioning

While there are some steps you can take to troubleshoot your AC problems, it’s important to rely on trusted HVAC professionals for more serious issues. 

HVAC technicians have the training and experience necessary to diagnose and repair complex AC problems, such as refrigerant leaks, compressor failures, and electrical issues.

Regular maintenance by a qualified technician can help prevent many common AC problems, such as dirty air filters, clogged coils, and low refrigerant levels. Routine maintenance can also help extend the lifespan of your AC and ensure it is running efficiently, saving you money on energy costs in the long run.

Is Your AC Not Blowing Cold Air?: Possible Causes

When the summer heat is beating down on you, there’s nothing worse than an air conditioner that’s not blowing cold air. Unfortunately, there are a variety of reasons your AC might not be functioning properly. Here are some possible causes to consider.

Dirty or Clogged Air Filter: One of the most common causes of AC problems is a dirty or clogged air filter. When your air filter gets dirty, it restricts the air flow; this makes it more difficult for your AC to cool your home. To avoid this problem, it’s important to clean or replace your air filter regularly.

Low Refrigerant Levels: Refrigerant is the substance that cools the air in your AC. If your refrigerant levels are low, your AC cannot cool your home effectively. This problem can be caused by a leak in your refrigerant lines, which requires the help of a professional HVAC technician to fix it.

Faulty Thermostat: If your thermostat is not working properly, it can cause your AC to run inefficiently or not at all. Make sure your thermostat is set to the right temperature, and that it is functioning correctly.

Dirty Evaporator or Condenser Coils: The evaporator and condenser coils in your AC are in charge of transferring heat out of your home. If they are dirty or clogged, they won’t be able to function properly, resulting in reduced cooling performance.

Even if you know exactly what the issue is, it’s important to get an expert who knows how to complete the repair properly. Whether it’s about your warranty or simply wanting to ensure the job gets done right, the IMS team is here to assist. If your AC is not blowing cold air, we can help you find solutions. 

Air Conditioner Not Blowing Cold Air: What Should You Do?

The first thing you should do if your AC is not working is to contact an expert. Time is of the essence, and though the climate in Colorado is friendly, in the summer months, there’s no time to waste on getting AC. So, if your AC is not blowing cold air, there are a few things an HVAC tech can do to troubleshoot the problem. These include: 

1. Checking the Thermostat: Our experts determine whether your thermostat is set to the correct temperature, and that it is functioning properly. If your thermostat is not working correctly, it could cause your AC to run inefficiently.

2. Checking the Air Filter: The tech can check your air filter and clean or replace it if necessary. A dirty or clogged air filter can restrict the flow of air and reduce your AC’s cooling performance.

3. Cleaning the Coils: If your evaporator or condenser coils are dirty or clogged, it can reduce your AC’s cooling performance. A tech can clean them using a soft brush or by spraying them with water.

4. Checking Refrigerant Levels: If your refrigerant levels are low, it could be because of a leak in your refrigerant lines. This requires the help of a professional HVAC technician to fix.

It’s important to note that there are many tricky wires and sensitive chemicals in your air conditioner. To remain safe, ensure proper performance, and maintain a warranty on the unit, getting professional help is essential. 

5 Reasons Why Your Air Conditioner Is Not Cooling Your Home

If your AC is running but not cooling your home, there are several potential causes to consider. Here are a few:

  • Dirty or Clogged Air Filter: A dirty or clogged air filter can reduce your AC’s cooling performance, making it difficult to cool your home effectively.
  • Low Refrigerant Levels: If your refrigerant levels are low, it can cause your AC to run inefficiently and reduce its cooling performance.
  • Faulty Compressor: The compressor is responsible for compressing the refrigerant and transferring heat out of your home. If it is not functioning correctly, your AC cannot cool your home effectively.
  • Improper Installation: If your AC wasn’t set up properly, then it’s likely that it incurred some extra wear and tear. When the installation is completed by the pros, you can count on proper function and get the benefits of a longer-lasting unit.  
  • Improper Placement: When an air conditioner isn’t in the right area, there’s no way for the air to circulate and actually cool the home. Heat rises and cold drops. Without proper conduction of the air throughout the home, it’s harder for the AC to do its job.

Our experts train on a variety of air conditioning units and know precisely how to identify, then repair, your AC issues.

5 Reasons Why Your AC Is Blowing Hot Air in Your Home

If your AC is blowing hot air, there are a few possible causes to consider. Here are some things that a trained professional can check:

  • Thermostat: Make sure your thermostat is set to the correct temperature, and that it is functioning properly. If it is not working correctly, it can cause your AC to run inefficiently.
  • Refrigerant: Low refrigerant levels can cause your AC to blow hot air. Check your refrigerant levels and have them topped off if necessary.
  • Compressor: The compressor is the component that compresses the refrigerant and transfers heat out of your home. If the compressor is not working correctly, it can cause your AC to blow hot air.
  • Blocked Condenser: The condenser is responsible for the release of heat from your AC system. If it is blocked by debris or dirt, it can cause your AC to blow hot air. Ensure that you keep the area around your condenser clean and clear.
  • Faulty Thermostat: If your thermostat is not functioning correctly, it can cause your AC to run inefficiently or not at all, resulting in hot air blowing from your vents.


It might seem like a lot of jargon, but that’s exactly why IMS is here. We take the guesswork out of appliances and ensure that your home is cool as a cucumber during Colorado’s warm seasons. 

Is Your AC Not Blowing Cold Air? Rely on Trusted HVAC Professionals at IMS

If your AC is not blowing cold air or is blowing hot air, there are a variety of potential causes to consider. The sooner you reach out, the simpler it is to fix an issue. This involves steps like checking your air filter, cleaning your coils, and making sure your thermostat is functioning properly can help troubleshoot some common issues. 

However, for more serious problems or regular maintenance, it’s important to rely on trusted HVAC professionals to keep your AC running smoothly and efficiently. Contact IMS Heating & Air today to learn more about how we can help your AC keep its cool.