What You Should Do About a Dirty Furnace Coil

What You Should Do About a Dirty Furnace CoilWhen it comes to your HVAC system, what you can’t see can do the most harm. Hidden away from plain view, a dirty furnace coil can cause some serious problems for your unit if it’s not cleaned up in time. Fortunately, regular professional maintenance can help keep your system operating in peak form.

How a Dirty Furnace Coil Affects Your HVAC System

Good airflow is absolutely essential for just about any HVAC system. Air that enters the HVAC system through the return air inlet passes through the coil located within the furnace plenum. Over time, dirt, dust and other debris can get trapped in between the coil fins, blocking air from flowing through the coil. This can happen if you’re not keeping up with your furnace filter changes.

A dirty furnace coil can cause a variety of problems with your HVAC system, including:

  • Reduced downstream airflow
  • Poor indoor air quality
  • Degraded heating performance
  • Increased heating costs due to wasted energy and longer run times
  • Chronic overheating that triggers constant automatic furnace shutdowns

Dirty furnace coils can also be the perfect breeding ground for mold growth, thanks largely to the damp, dark confines of the furnace plenum.

Cleanup Time

Cleaning the furnace coil on your own isn’t a walk in the park. For starters, gaining access to the sealed furnace plenum can be a tough task. It’s also easy to damage the delicate fins lining the coil if you’re not careful, which is why it’s usually a good idea to leave the cleanup to your trusted HVAC technician.

Here’s a good idea of what your technician may do to clean your furnace coil:

  • Use compressed air to blast away dust and debris
  • Scrub the coil with soft brushes specially made for coil cleaning
  • Use special foaming solvents to break down tough dirt and debris
  • Apply biocides to eliminate and prevent mold growth

If you have a dirty furnace coil that needs cleaning, contact us at Davis Air Conditioning, proudly serving southwest Oklahoma.

Our goal is to help educate our customers in the Lawton and Duncan, Oklahoma area about energy and home comfort issues (specific to HVAC systems).

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