Why Does My AC Run Constantly and Other Top Homeowner Concerns with AC

Man checking the AC

Have you ever wondered, “Why does my AC run constantly?” It can be one of several frustrating concerns, whether you’re just getting used to a new air conditioning unit or you’ve had your current system for some time.

Whenever something just doesn’t seem right with your air conditioner, the best thing to do is to investigate your concerns and ensure there’s not a bigger issue at hand. Let’s take a closer look at a few common concerns that homeowners have with their air conditioners and how to resolve them.

Why Does My AC Run Constantly?

When your AC runs constantly it can become very expensive as it’s forced to use more electricity to operate. Your air conditioner should be able to cool your house effectively without running constantly. There are several reasons why your AC may be running all the time, including:

  • Your air filter needs to be changed – this is one of the more likely reasons that’s easy to fix by simply installing a new air filter
  • It’s the wrong size for your home
  • It was not installed correctly
  • Your thermostat has stopped working (Tip: check your batteries!)
  • Your home is not properly insulated and the cool air is escaping
  • Your unit needs maintenance or to be replaced

Before you call in the experts, be sure to check your air filter and the batteries in your thermostat first – often these simple solutions will be enough to fix the problem.  If you find that you’re still having issues, a licensed HVAC professional will be able to identify the cause and then take the proper steps to fix the problem, whether that may be installing a new air conditioner that is the appropriate size for your home, fixing your thermostat or locating where your indoor air is escaping the house.

Female using a fan to cool off

Why is My Air Conditioner Not Cooling to Set Temperature?

At some point, every homeowner will experience an issue where their air conditioner doesn’t cool to the temperature they set on their thermostat. Before calling an HVAC technician to help you, make sure that you check the thermostat to make sure it is programmed to the right settings, including that it isn’t set to heat, that the fan is on, and the batteries in your smart thermostat haven’t run out.  

If your thermostat seems to be operating properly and your air conditioner still won’t cool to the set temperature, it’s likely that there is a larger issue that needs to be addressed by a professional. The best thing to do in this case is to schedule an appointment with a technician and, in the meantime, try raising the temperature on your thermostat so that the AC is able to reach the temperature on the thermostat rather than overworking itself.

Why is My AC Making Odd Noises?

A common cause of air conditioner problems is a broken or malfunctioning air compressor. Compressors are a very important component of air conditioner units and act as the engine to help keep them running. If there is an issue with your compressor you may hear an odd noise when your air conditioner starts or feel a general loss of cooling in your home.

It is not advised that you try and fix your compressor yourself as it can potentially break something further. Before you call an HVAC technician, you can check to make sure you have power and that the thermostat is set properly. If everything seems to be in order, schedule a technician to come in and take a look to see if the air compressor is the issue.

Why is My Refrigerant Running Out Quickly?

If you have to replace your refrigerant frequently, there may be a leak in the refrigerant system. Inspect the area around the unit for leaks or any potential signs of a leak on the unit itself.  To ensure that your system is working properly, call in a technician who will do a thorough assessment and fix the leak, as it is illegal to add refrigerant to a system without fixing the leak in Ontario.

For more information and to get answers to any other air conditioner related questions that you may have, please visit our Videos page or contact us at ClimateCare. One of our professionals would be happy to speak with you and set up an appointment to inspect your AC.