Why Your AC is Constantly Running

Air conditioning is practically essential for survival in the summer months in Kansas City. It doesn’t take long to realize when your home’s air conditioning isn’t working correctly on a hot day.

Have you ever noticed your AC is constantly running? Sure, it’s cool and comfortable, but it’s wasting electricity by not shutting off now and then. Even if your house is being cooled, it can be concerning when your HVAC system behaves strangely.

Reasons Why Your AC is Constantly Running

The Thermostat is Set to On Instead of Auto

A relatively simple explanation is that your thermostat could be set to on, which tells the system to run the fan constantly whether the air conditioning is cooling or not. Take a look at your thermostat, and change the setting to "auto" if needed.

Thermostat Malfunctioning

Your thermostat is more than just a device where you set the temperature; it also senses whether the room has gotten cool enough to shut off the AC. If the thermostat can no longer accurately tell the temperature or relay information to the HVAC system, it may need to be repaired or replaced. If your thermostat is sensing the wrong temperature inside your home, schedule a technician to come and check it out.

Electrical Issues Between Thermostat and HVAC System

While this issue is like a malfunctioning thermostat, it’s not quite the same. Your thermostat may be working properly, but if the electrical relays and switches that connect it to the HVAC system are faulty, it won’t be able to regulate when the AC fan turns off.

Undersized AC Unit

An undersized AC unit may constantly be blowing because it can’t keep up with cooling your home. If the AC unit can’t cool your home, it’ll over-perform to do it – this can result in it constantly running, higher electricity bills, and needing to replace it sooner rather than later.

Reduced Air Flow

Your AC system is designed with a certain airflow capacity, and any number of things can restrict that airflow. Some examples include a coolant leak, blocked ductwork, a dirty air filter, clogged vents, and more. Many of these you can troubleshoot yourself, such as cleaning your vents or changing the filter. Some, like blocked ductwork, will require duct cleaning to clear out debris or dust filling your home’s ducts.

Dirty Condenser Coil or Evaporator

Anything that can impede airflow for your AC can cause problems. A dirty condenser or evaporator will force your unit to work harder, making it constantly run to keep up with the cooling demand. This one is easy to figure out: you’ll see dirt, debris, and other build-up in and around the coil and evaporator. Some units you can flush out with a water hose; others need to be taken apart to thoroughly clean.

Call an A.B. May to Troubleshoot Why Your AC is Constantly Running

If your air conditioner is constantly running and the recommended solutions above haven't fixed it, you should contact us to come out and solve the problem. A.B. May’s team will come out, troubleshoot, and offer solutions to get your AC working the way it should be. Call or contact us today.