Why is My Air Conditioner Running but Not Lowering the Temperature?It happens to the best of us: You turn on your AC to find out your air conditioner running but not lowering the temperature of your home. This is a common problem and, in many cases, can be easily resolved. However, there are some instances where you’ll need to replace your air conditioning system entirely. 

In this article, we’ll talk about just 5 reasons why your air conditioner may be running but not lowering the temperature of your home. That way, you can, hopefully, resolve your AC  troubles sooner rather than later.

1. Your thermostat settings are incorrect.

One of the first things you should always check when your air conditioner isn’t running as it should is your thermostat. In many cases, a simple error in thermostat settings will prevent your AC from fully kicking into gear and lowering the temperature of your home.

First, you’ll want to ensure that your thermostat is set to “cool,” as leaving your thermostat on “heat” will prevent your AC from turning on. After giving it some time to start working, if you notice that the air coming through your vents still isn’t cool, the next setting to check is the temperature itself. The temperature must be low enough, or your air conditioner won’t be able to recognize that it needs to “cool” your home.  

2. You have a clogged air filter.

If your thermostat doesn’t seem to be the issue, the next thing you’ll want to take a look at is your air filters. In many instances, folks forget to change their air filters. The problem with failing to change your air filters is that, over time, they can become clogged with dust and debris, which makes it harder for your air conditioning system to run. If this happens, your air conditioner may overheat and shut off.

To check your air filters, start by turning off your air conditioning system. Then, locate each of the air filters in your home, remove the return registers, and take out the air filter. Thankfully, if your air filters are over 3 months old, or if they appear very dirty, you can purchase brand new ones from your local hardware store. Another option is to contact your local HVAC technician

3. You need to clean around your condenser unit. 

Much like your air filters, your outdoor condenser unit can become blocked, or clogged. Your outdoor condenser unit is the one that’s typically located around the side of your house. When leaves and other debris block your condenser, these items can prevent your condenser unit from adequately exhausting heat, which can cause your air conditioner to shut off. 

The good news is that this is an easy fix. First, turn off your air conditioning system. Then, remove the most obvious debris around your condenser unit, such as overgrown plants or weeds that could hinder your air conditioner’s performance. Finally, remove the unit’s cover and remove any leaves or other debris that could be inhibiting your condenser’s function.

4. Your system has a refrigerant leak.

Outside of your air filters or condenser unit being dirty, another potential issue could be a refrigerant leak. For your air conditioner to keep your home at your desired temperature in the summertime, your system needs refrigerant. Refrigerant is what allows your air conditioner to pull the heat from inside your home, but if there’s a leak, it won’t be able to do so.

If your air conditioning system has a refrigerant leak, this is generally pretty bad news for your system. Most refrigerant leaks are fairly significant, and in most cases, it makes more sense to replace your entire HVAC system rather than trying to repair the refrigerant leaks. If you suspect this is the issue, check out AC Refrigerant Leaks Signs You Should Know

5. Your AC is old and needs to be replaced. 

Last but not least, if your air conditioning system is 10 to 15 years old, or older, there’s a chance that age is the reason your system isn’t doing its job. As with anything, when your air conditioner ages, various internal components break down, which can prevent it from adequately cooling your home.

Also, as with refrigerant leaks, it often makes more sense to replace, than to repair, your HVAC system if it’s having issues due to old age. Plus, HVAC technology has greatly improved in the last decade. So, if you find yourself needing to replace your air conditioner, you’ll receive a system that’s not only much more efficient but much more effective than what you had before.

Schedule Your Next Air Conditioner Repair

We hope that this article has helped you to start figuring out why your air conditioner may be running but not lowering the temperature of your home. Please note that there are a number of potential AC issues, in addition to those that we’ve mentioned, that could be causing your system to operate poorly. 

If you’re still not sure what’s going on with your air conditioner, it may be time to contact an HVAC professional. Here at Edge Heating & Air, our team has been helping customers in the Temecula Valley and surrounding areas identify and resolve their AC problems, and we’re ready to help you too!

Solve your AC troubles ASAP by calling (951) 304-9658 or scheduling your service online today! 




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