COMMON AC PROBLEMS

1. It’s not operating

If your AC system won’t turn on, first ensure that the unit is plugged in and that your thermostat is set correctly. If that doesn’t fix the problem, check if a fuse has blown or the breaker has tripped. Finally, if your air conditioner still won’t turn on, you may have a problem with your motor or compressor. Since these parts are complex, you should contact one of our AC specialists to diagnose and fix the problem.

2. It’s not blowing cold air

If your AC unit blows warm air, you may have a dirty or blocked outdoor air condenser. Try removing any brush or debris around the unit that could restrict airflow. If that doesn’t work, your air filter could be clogged and need to be changed. Alternatively, your AC unit may be low on refrigerant or have a refrigerant leak. If there’s enough refrigerant in the system, the copper lines that go into the condenser will feel cold to the touch. Since refrigerant is toxic, it’s important to leave related issues to a professional.

3. It’s making strange noises

Don’t ignore strange noises coming from your air conditioner. If you hear a squealing sound, the AC belt may be misaligned or need to be replaced. If there’s a grinding noise, there may be something wrong with the blower fan or motor bearings. If you hear a pinging or popping noise, a component may have loosened inside the unit and need to be tightened or replaced. If you hear any of these sounds, turn off the air conditioning immediately and call a professional. AC units have several moving parts, and it’s best to have an experienced technician take a look.

4. It’s leaking water

Small amounts of condensation are typical for a functioning AC unit. However, if you notice large amounts of pooling water, check to see if your drain pan is clogged or rusted through. It’s important to periodically remove built-up dirt, dust, and debris that could cause your drain pan to overfill. Alternatively, your air filter could be dirty and need to be replaced. Another possibility is that you may have a blocked drain line or clogged condensate pump. If you aren’t sure what’s causing the problem, it’s always best to call in a professional to fix the issue as quickly as possible.

5. It’s emitting strange odors

A burning smell coming from your AC unit may be caused by overheating parts such as a blower motor or seized bearing. In addition, strange smells can be caused by a dirty air filter or debris in the ductwork that’s restricting airflow and causing electrical overheating. These issues can cause fires and should be dealt with promptly by a trained professional. When troubleshooting your air conditioning unit, keep your warranty in mind. While it’s safe to perform basic maintenance, some AC problems require professional assistance to prevent voiding the warranty. Finally, many common air conditioner problems can be easily prevented with regular maintenance. The HVAC experts at Kelley Heating and Air Conditioning can inspect and tune up your system to save you from having to make an emergency call or pay for costly repairs on the hottest day of the year.