Causes of Poor HVAC Airflow and How to Fix Them

HVAC airflow problems make your home less comfortable. Knowing what’s causing it helps keep your system from deteriorating early while also ensuring your home doesn’t spend excessive amounts of energy. Here’s a look at the potential causes of poor HVAC airflow and how to fix each one of them.

1. Blocked Vent Registers

If only a few rooms have weak airflow, try checking if the registers are closed or blocked off by furniture, drapes, potted plants, and other obstructions. Closed vents can throw off your HVAC system’s air balance, causing poor airflow. It is also not advisable to close the vents before leaving a room for that same reason.

2.  Duct Damage

One of the most significant potential sources of energy loss is duct leakage. An average household loses about 20 to 30 percent of the conditioned air from gaps, holes, tears, and other openings within the ductwork. In other instances, an airflow bottleneck may be caused by a dented, crimped or inadequately proportioned ductwork segment. A duct inspection can help diagnose the problem of poor HVAC airflow. Depending on the findings, the pros can clean the ducts, repair, or replace clogged or leaking ductwork, or both.

3. Dust Buildup

Dust is a threat to the efficiency and performance of the HVAC system’s mechanical and electronic components. Dust within your furnace or air conditioner prevents heat from dissipating and may cause it to overheat. Buildup on electrical wires and connections can also prevent electronic components from getting power and cause fires through short circuits.

4. Failing Blower Fan

The blower fan is the part of your HVAC system that moves air. A failed blower fan slows down and runs sluggishly before breaking. If your home has insufficient airflow, it may be due to dust on the motor, a failed capacitor, or the entire HVAC system showing its age. Get in touch with your HVAC technician as soon as you hear motor grinding or screeching belts and bearings from your appliance.

The Ice-Man is a recognized HVAC contractor with over 30 years of experience, offering the area’s residents excellent heating and cooling services. We operate as a licensed and insured local family-owned business. Each of our HVAC experts is qualified to perform a wide range of services. To request an estimate or schedule a service appointment, call (609) 466-9020, or fill out our contact form.