5 HVAC System Sounds You Don’t Want to Hear
5 HVAC System Sounds You Don’t Want To Hear Without repairs or maintenance, even a new and energy-efficient HVAC system will develop problems. This could lead to loud noises coming from the system. The following are just five possible noises you may hear. If you do hear any of these noises, it’s important to reach out to a technician right away. 1. Banging and Clanging Broken and disconnected parts will bang inside the system, oftentimes in the compressor and blower unit. The fan blades, in particular, may be hitting against another object. Loose motor mounts can be the culprit as well. 2. Rattling Loose parts will rattle, so this sound should not alarm homeowners as much as the banging. Rattling may also point to a loose air duct or panel. Parts that are loose or out of balance may also clank. 3. Screeching and Grinding The sound of screeching—metal against metal—shows that the fan motor bearings are going bad. Problems with the motor bearings and the fan belt may be reflected in a squealing sound. Blower motor units may squeal or screech if they are lacking in a lubricant. If the bearing is about to fail, it may produce a...
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