Why is My AC Not Blowing Cold Air?

Is the air coming from your air conditioner not air-conditioned? Maybe it’s blowing hot air, or maybe the cool air being blown is weak.

Many problems could be the cause of this symptom, including dirty/clogged ducts, mechanical problems, and refrigerant issues . If you feel you’re not getting your money’s worth from your AC unit, here are the issues we see most commonly that may be causing the “AC not blowing cold air” problem. If any of these issues apply to your unit contact your local AC repair expert Rogers & Sons.

outside ac unit

Refrigerant Leak/Loss

Refrigerant is the liquid that runs through your HVAC unit, and through a complex chemical process, cools the air that passes through the machine. Refrigerant may be an underlying issue if your HVAC unit doesn’t blow cold air, in some faulty units refrigerant levels may be too low for effective cooling, or the refrigerant may not even be present at all. Refrigerant should only be handled by a professional, so call one of our AC repair specialists if you suspect your AC unit is low on refrigerant.

Faulty Blower Motor

If the blower motor is not working, you will not hear a fan sound when you turn it on. This could be caused by a number of reasons. First, something may be physically wrong with your motor, such as a broken belt, a clogged motor, or something being jammed in the motor’s blades.

Second, is that there may be an issue in the motor’s wiring or older AC motors will eventually fail. In cases where your motor’s electricals are damaged, or if it seems that your AC motor has failed completely, professional service is required.

If your only blower motor issue is clogging or a jammed object, you may be able to fix the issue yourself — just be sure to take all the necessary precautions, ensure the system is off, and contact a professional if you’re unsure.

Clogged Ducts

If your AC system is running, and you can hear the motor, air is coming out of your vents, but the air isn’t cold and doesn’t blow as hard as usual, then your ducts might be clogged. Your AC unit is functional in this case, but the throughways the cooled air travels through aren’t working at their full capacity due to blockages or build-up that is restricting airflow.

Trying to clean these out yourself could cause damage to the pipes and make matters worse than they already are. So, make sure to call a professional like Rogers HVAC to ensure the job gets done correctly with no damage to your vents.

Faulty Compressor

The compressor is the heart of your AC system. It compresses and pumps refrigerant and keeps it running smoothly by changing the refrigerant from a low-pressure gas to a high-pressure gas. If the compressor fails, you won’t have any cool air coming out of your vents although the motor might still run like normal and air will continue to blow out of vents.

The most common reason for a faulty compressor is its age. Depending on how well they are taken care of it and maintained during their lifespan compressors can last anywhere from 5 to 10 years. If your HVAC system is older than 5 years old and suddenly stops producing cold air, the compressor could be the reason your AC is not blowing cold air.

Your AC Is Still Not Blowing Cold

If you’re still in the dark about why your HVAC unit isn’t working quite right, we can diagnose the problem and help restore your AC unit to working condition.

Here’s what we’ll need to know:

  • How long have you been experiencing this issue?
  • The condition and status of your thermostat

Our technicians will perform a thorough inspection of the system to determine what’s causing it to malfunction. This may include:

  • Checking air filters for clogs or damage
  • Testing ductwork for leaks or obstructions
  • Test and replace any faulty sensors
  • Test and replace any faulty controls
  • Installing new parts where needed (e.g., blower motor)

Now more than ever, your AC system is one of the most important parts of your office and home. With frequent use, it can develop issues that will impact efficiency and its ability to cool effectively. If you notice any problems with your AC, be sure to call an AC repair professional for assistance. Rogers and Sons is ready to help you whenever you need it.

AC not blowing cold air?