If your furnace is running as usual, or maybe running more than it normally does, but your home still seems chilly, then there might be an airflow problem in the HVAC system. You can sometimes solve a low airflow problem yourself, but you'll want to do so promptly because restricted airflow could damage your furnace. Here are some signs of low airflow, what you can do about the problem, and when you need to call an HVAC service to make repairs.
Signs Your Furnace Isn't Blowing Enough Air
Your furnace may need to run longer than usual to reach the thermostat setting and this results in higher power bills. When you notice your furnace running longer, you'll want to hunt for problems and fix them if you can so that you won't get a shocking power bill. When there isn't enough airflow, you might also notice your home seems chilly or that there are chilly pockets of air. A single room might be colder than the others. All of these problems can come about simply because your furnace doesn't have enough air circulation and not enough hot air blows out of the registers.
Things To Check To Fix The Problem
First of all, check the filter. If it's clogged, change it and see if that helps. Also, check each register in your home to make sure none are covered with furniture or blocked by curtains. Clean the grilles to remove dust that might be blocking airflow. Look inside the ducts with a flashlight just to make sure there isn't an obstruction that's reducing airflow through the registers. Finally, check the ducts in the attic. A leak in a duct will affect how well your furnace can heat your home. Cover the gap with mastic tape if you find a leak.
Repairs That Might Be Needed
Cleaning the vents and checking the ducts are fairly simple things you can probably do on your own, but if the inside of the furnace is dirty, you'll want to call an HVAC service to clean the blower, motor, or sensors so that your furnace will operate properly. The blower is a fan that circulates air, and if it gets sluggish or clogged with dust, it won't move as much air. Blower problems are common, and the HVAC repair technician might need to replace motor parts to get the blower working at full speed again. If changing the filter, patching the ducts, and cleaning out dust doesn't get results, then call in an HVAC repair service.
Once your furnace is back to normal, be sure to keep it free of dust and obstructions. Also, set a reminder to change or check your filter monthly. Keeping dust out of your HVAC system seems like a minor thing, but dust can cause some major problems and can even cause your furnace to shut down. By getting annual service checks and changing the HVAC filter on schedule, you might avoid problems with low airflow in the future.
To learn more about HVAC services, visit a site like http://www.coeheatcool.com.