You likely hear many noises in your home throughout the day, but your HVAC system shouldn’t be the source of any of them. HVAC systems and air ducts are designed so that you should never hear them. So, if you suddenly notice a noise that wasn’t there before, it’s not normally an issue to take lightly.
Before calling for help, read the following to find out what noises you might hear and what they could mean.
Dripping Water
If you notice the sound of dripping water coming from your air conditioner, take immediate action. Turn the system off immediately and contact and HVAC Technician to inspect the unit. Its always best to have the area inspected for mold and any possible long term damaging affects.
Whistling
If you notice a whistling noise coming from your air vents, it’s likely due to blocked airflow. When a vent is closed, the air gets forced into the other areas of the home, this makes the air vent push too much air which will end make a whistling or roaring sound.
If you notice the sound coming from a vent that is closed, it’s because the dampers cannot block airflow entirely, causing a whistling sound as a tiny bit of air escapes through the slats.
Rattling
If you notice a rattling noise, there is something loose in your air conditioner. Check the outdoor unit for any loose debris that may be hitting the condenser fan. If you cant find any visible debris, there could be loose piece somewhere in the system or the compressor could be falling. If the noise is coming from inside, it could be originating from the air handler. This is likely caused by a loose screw or wobbly supply air fan.
For any of the above issues, it’s best to call a professional to resolve the problem rather than put yourself at risk.
