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Why Is My AC Not Blowing Cold Air?

Last updated on September 28th, 2021

An air conditioner that is not blowing cold air can be a big problem. Especially if it happens on a scorching summer day. There are many reasons why an air conditioner may not be working as expected. Thankfully some of these reasons are a quick fix that you can do on your own. Here is a list of some reasons why your air conditioner may not be blowing cold air that you can check on your own and what you can do to fix it.

  1. It’s being blocked – When your air conditioner is blocked by exterior debris it will not be able to function properly. When you first notice that your ac is not blowing cold air your should go outside and take a look at the exterior of the unit. Make sure nothing is stuck to the outside of the unit. Remove anything that may be blocking airflow to the air conditioner. As a good preventative measure it is important to do regular cleaning of the area around your AC unit. Check our air conditioner maintenance checklist to ensure you stay on top air conditioner maintenance This is one of the most common reasons why an air conditioner may not be blowing cold air.
  2. Your thermostat isn’t working correctly – Make sure your thermostat is turned on and is on the correct setting. Additionally, if there is a problem with your thermostat it may prevent your air conditioner from turning on and off when it needs to. It is important to ensure that you have your thermostat installed correctly by a professional. Get your thermostat checked if you feel it may be the cause of your air conditioner problems.
  3. You have an electrical problem – adequate power may not be making its way to your air conditioning unit. Make sure you haven’t blown a fuse, or any other electrical issues related to your unit. You may not be able to fix all electrical problems on your own, but starting with resetting your breaker may be a good start.

What if it’s still not working?

If you have done a check of your ac’s exterior, filter, thermostat, and breaker and the problem has not been resolved it is likely time to call a technician. A technician will be able to service your air conditioner and diagnose the issues that are stopping it from working. The suggestions listed in this article offer good first steps for self diagnosing the issues but do not replace the knowledge of a professional.