Causes of Poor Air Flow in an HVAC System

If you have a central air conditioner, you might have noticed that you aren’t getting as much cool air as you normally do. The problem may very well be in the ductwork. Here are some tips for troubleshooting what may be causing the problem.

Central air conditioner and heating systems use ducts to carry the hot air out of your home and the cool air into your home. The ductwork is actually made up of plastic tubes that run behind the walls.

Sometimes, the ductwork leaks out the cool or the hot air. This can lead to serious costs in energy bills with little to show for it in terms  of warm or cold air for your home.

So how do the ducts start leaking in the first place?

Ducts can lose air if they have been punctured inadvertently. or if they have simply grown brittle after years of use. Some people try to repair holes in the ducts with duct tape. Unfortunately, this is only a temporary solution.

The other reason why we see faulty ducts is due to bad installation. Sometimes, contractors fail to attach the ducts properly. This can allow for massive amounts of air escaping from the ducts themselves.

Another reason why ducts sometimes fail to work well is because they have become blocked in some way. This is similar to what happens if you have a kink in a water hose. The water – or in this case the air – simply cannot get through the tubing.

We have also seen cases where the ducts themselves were simply too small for the amount of air they were dealing with. This may also indicate that your HVAC system is too small (or too large) for your home. This can lead to issues with too little pressure pushing the air through the ducts.

If any of these scenarios sound like they might be what you are dealing with, your best bet is to find a good HVAC company and ask them to come out and inspect your ducts. We’ve had good luck with recommendations from Angie’s List. A good HVAC team can quickly determine what the issue is and help your heating and cooling system back up and working.

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