There are so many things that could be slowing down the airflow of your furnace. Before you call an HVAC contractor there are a few tests you should run first. You might be able to fix the problem completely, or at least temporarily improve the functionality of your system. This article explains a few things you can do on your own, that might greatly increase the airflow and effectiveness of your furnace. These repairs are cheap and don’t require any tools except a vacuum and a screwdriver. 

Clean the Furnace Filter

Located in a small door on the front or side of the furnace, is the filter compartment. This for can be easily popped up without any tools. Pull the filter out and inspect it. If there is a plethora of dust built up in between the ridges, you should just replace it completely. Filters are affordable and available at most home improvement stores. If the filter does not look dirty at all, just continue to use it. However, before you put if back in the compartment, look inside and see if there is dust or dirt clogging. Vacuum out any dirt, as it could be blocking airflow. 

Clean the Air Registers

Next, you should clean the air registers. To do this, you need to take them off the wall, even if you dust them on a regular basis. It is important to clean the backside of the registers every once in a while. When you use a feather duster on air registers, it can push the dirty into the vents, where it gets recirculated into the ducts. Clean between the individual vents to remove any blockage. When you take the registers of the wall, you will probably notice dust build up along the ridge of the drywall. Clean this out as well and inspect deep inside your ducts to see if there are any obstructions or clogs. If there are no visible obstructions, you can reattach your registers and see if it improve the airflow.

If you do notice any clogs deep inside your ducts, you should immediately call an HVAC or dust specialist (such as one from Arnie’s Dependable Appliance Repair). They have the necessary tools and training to clean deep within the ducts.

These simple checks could help solve your problem. As you can see, the problem often has nothing to do with the actual operation of the furnace. So, run these tests before you start shopping for furnaces.