If your air conditioner isn’t working properly, it’s important to know the cause. In this HVAC resource article, we will troubleshoot the air conditioning issues you may be experiencing in your home.
Start with an AC System Reset
That’s right, sometimes you simply need a system reboot. Periodically, you’ll need to do the exact same thing with your computer or other home appliances.
AC Not Blowing Cold Air
Your AC is blowing but it isn’t blowing cold air. We hear this common question in St. Charles County: “Why isn’t my air conditioner cooling my home?” The most common cause is simply a lack of airflow. One of the first steps is going to your circuit breaker and flip it off. Give it a few minutes and let it rest. Flip it back on and see if you have noticed any change in your air. The idea behind this is to give it a reset. You are shutting all the electrical and mechanical parts down. Hopefully, by doing this simple step it reset for you.
Outside Air Conditioner Not Turning On
If your outside unit is not turning on this could be a big problem. You should first check your fuse box and make sure that you have not blown a fuse. This seems like it would be out of the ordinary and you are right. It normally isn’t the problem but kids flip breakers having fun all the time and sometimes they just overload.
Common Issues You May Experience With Your Air Conditioner
Review this check list of common issues you might experience with your central air conditioning system.
Power Issues
This is generally your first thought to check. It seems basic but it is so common you just have to check. You should check the ac and make sure you are still plugged in. While you are at it go yo your electric panel and still if it has been flipped or broke. If you had a surge of power it could have flipped the breaker without you knowing.
Clogged Filter
We have seen AC units that will shut down the entire system when the filter gets dirty. This is a simple trick to help save your motor and help save your entire system. When you have a clogged filter, you will notice the system gets backed up and the ac will have trouble breathing.
Thermostat Problems
Barring any electrical issues, the next step is to check your thermostat. Many things can go wrong with a traditional thermostat. If you haven’t looked into a digital thermostat yet, the time is now.
Clogged Drain
The whole idea behind an air conditioner is to remove that moisture from the air. Once the air is removed, it drains it out of a pipe or hose. It is very important to replace those or keep them clean. You can rinse it out with a natural cleaning solution.
Dirty Compressor
Your compressor is a high ticket item and it should be treated like so! You should try to clean around the area. Some folks in colder areas in St Charles and St Louis like to cover it for the winter.
Why Isn’t My Air Conditioner Cooling My House?
Your air conditioner has a water sensor switch for example. This will shut down if it has a clogged condensate drain line and spills water into the overflow pan. It is your Amana AC airbag deploying to prevent water damage to your home.
Like a human, your ac can overheat. This will cause it to run harder and pulling in more than enough electricity than the breaker can handle. The breaker will cut power to your air conditioner. If you flip the breaker and it does it again a few times. It is letting you know there is something wrong somewhere.
Other Possible AC System Culprits
- You could have a bad compressor. This will need to be inspected by a licensed HVAC technician.
- You could have a leak and there could be a low charge on your refrigerant.
- A broken condenser.
If you cannot figure this, out or just have a simple question call No Problem Heating and Cooling. We can make this easy for you. If you are having an issue, call us as soon as you can. We’re ready to help you today.
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Jeanne24 September 2026Trustindex verifies that the original source of the review is Google.
Needed furnace to be checked out for the winter. Casey was very nice and explained everything thoroughly. I am very pleased with the service I received.Posted on Google![]()
Jeff24 September 2026Trustindex verifies that the original source of the review is Google.
The team at no problem heating and cooling did an excellent job installing my new Mitsubishi mini split from start to finish, l am very happy with the completed project and the way everything was handled and the communication was above and beyond great. I would definitely use them again and refer them to all my friends and family. Thanks again for doing a great job. I will be using them from here on out for all my HVAC needs.Posted on Google![]()
Patrick Gateway21 September 2026Trustindex verifies that the original source of the review is Google.
Fast and efficient, tech was very knowledgeable, fixed the issue less than 4 hours after I called them to make the appointmentPosted on Google![]()
Jada Campbell18 September 2026Trustindex verifies that the original source of the review is Google.
We had a great experience with No Problem Heating and Cooling! My AC went out, and they were able to get me scheduled quickly after I called. They came out, figured out what was wrong, and explained my options without being pushy about selling me anything. I ended up repairing my current AC but when it’s time to replace it, I’ll definitely be calling No Problem again. They also told me about their air purification systems, and with my allergies, I decided to have one installed. I’m really looking forward to having cleaner air in the house. Thanks for everything! Great service, honest recommendations, and super easy to work with. I definitely recommend No Problem!Posted on Google![]()
Martha Hogan14 September 2026Trustindex verifies that the original source of the review is Google.
Casey k. Did a awesome job and we are very pleased 😁Posted on Google![]()
Laura Ray11 September 2026Trustindex verifies that the original source of the review is Google.
Casey and Donna both worked so hard to get our air conditioner working and back to normal. I cannot tell you how much it meant to my husband and I. When Casey walked into our home, it was almost 90 degrees, and thanks to both of them - less than 12 hours later - it was a perfect temperature. Even while experiencing a heat wave, our air conditioner works perfectly! THANKS TO DONNA for arranging his crazy busy schedule to fit us in as an emergency and THANKS TO CASEY, for his knowledge and expertise on how to fix the problem in less than an hour. I WILL ALWAYS YOUS NPM HEATING & COOLING LLC, and will recommend them to all of our family and friends. I can't tell you how grateful we are. Thanks again. Laura RayPosted on Google![]()
Lindsay Burle9 September 2026Trustindex verifies that the original source of the review is Google.
Service was fast, professional, and they did a great job!Posted on Google![]()
Sara Fager9 September 2026Trustindex verifies that the original source of the review is Google.
Very skilled, professional and on time. Did a great job on a new system. Good communication process and very responsive. I highly recommend.Verified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
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