Top Causes of Weak Airflow Coming from Your Vents

January 10, 2020 6:13 pm Published by Leave your thoughts

We’ve all been in homes or apartments that just don’t seem to get—and stay—cool in the summer or warm in the winter. Even with the thermostat set to the highest or lowest setting, the space isn’t getting to the right temperature. There are several things that could be the reason for this issue, so before you rush to hire a specialist, it’s worth it to check these simple things on your own. You and your wallet with thank us later! Below are the most common issues that can cause low airflow in your Oregon City, OR home.

Change the air filter

The simplest and most often overlooked thing you can do is check your air filter. It will generally be located in a central part of the house, like a hallway or main room. All too often people forget that these need to be changed every few months. Because the filter is pulling in air from the rest of the house and putting it through your HVAC system, the filter catches dirt and grime that needs to be cleared out every so often. Think of it like wearing a mask in a dust storm—eventually you’d need to clean it to be able to pull in enough air to breathe.

It’s time to vent

The vents are the second simplest place to look for your airflow problem. They are often easy to close with the pull of a lever, so a member of your family could have made adjustments without saying anything (or even by accident). Look inside the vent, and if you see the blades are closed, then adjust the lever until you can see into the duct. If it’s stuck, jammed or broken, remove the vent with a screwdriver and take it to the local hardware store to find a replacement that functions better.

Check the damper valves

If the afore mentioned options haven’t panned out, it’s time to go into the attic and look for another common problem: closed or broken damper valves. These are the ductwork equivalent to a faucet that lets water out at varied intensity. These valves do the same with air. Check to see if it’s a manual system and adjust until you get the right amount of air flowing. If it’s an automatic system, you might need to call in an electrician to fix a possibly faulty valve controller.

Balance issues

If you’ve recently had your HVAC system repaired or replaced, there is a chance the crew didn’t rebalance your ducts for the new unit. Because different units—especially new ones—have different outputs, the way air flows through the ductwork can change dramatically. This can mean heavy output in some areas, while next to nothing comes out in other rooms of the house. Make notes of the areas where you’re getting too much or not enough output, and call your contractor to come back for adjustments.

If you suspect you have blocked air vents somewhere in your Oregon City, OR HVAC ductwork, contact L & J Heating & Cooling. We’ll send an HVAC technician your way as soon as possible!

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