December 07, 2016 Energy Air Share this post Air conditioning systems are arguably one of the best modern conveniences. After all, without them, our lives would be supremely less comfortable. But while we love our HVAC systems for providing cool relief from the summer sun and warmth during cold winter days, we want them to do so quietly. Noisy air conditioning systems are a frequent complaint from homeowners — but good news — your comfort can (and should) come in silence. Read on to learn how to troubleshoot a noisy AC, as well as quieting solutions. The Underlying Cause of Noisy Air Conditioners When functioning efficiently, your air conditioning system should be relatively silent, aside from a slight humming when the system kicks on and off. Keep in mind, the unit outdoors will be loud when it’s running, but it shouldn’t produce any strange or shrill noises. In order to troubleshoot an overly-loud AC, you need to identify which part of the system is producing the noise. Let’s start with the indoor components: Indoor Components If excess noise is coming from the indoor components, such as the ductwork or vents, there may be something obstructing the airflow. Dander, dust, and even small animals can get stuck in the ductwork of your system. As a result, airflow may be obstructed and you may notice your system is noisier than usual because air is trying to flow freely but can’t. If this is the case, we recommend having a professional HVAC technician service your air conditioning system. They will be able to quickly determine if there is anything within the ductwork that is obstructing airflow and contributing to the noise level. Learn more about how obstructed airflow can make your home uncomfortable here: 4 Reasons Why One Room Is Hotter Than the Rest of the House Outdoor Components If the loud noise is coming from the outdoor components of your air conditioning system, there could be a number of underlying causes. Squealing Noise: This noise can occur when there is too much internal pressure built up within the system. Turn your AC off right away if it is making this sound and call a professional to inspect it. Hissing Noise: Likely caused by a refrigerant leak and can cause inefficient cooling. Refrigerant can be dangerous to humans so have this inspected promptly. Buzzing Noise: This noise is likely indicative of an electrical issue with the condenser fan motor, relay switch, wiring, or another component. Electrical issues are dangerous so turn your AC off and call a professional. Read more about AC noises here: 5 Noises That Should Never Come From Your AC Air Conditioning Services In Orlando If your air conditioning system is too loud, the Energy Air team is here to help. We offer comprehensive heating and air conditioning services and can restore your home’s comfort quickly. Contact us today to learn more about our services or to schedule your appointment.