Skip to Content
(877) 668-9263
Schedule Online
(877)-561-9730SCHEDULE SERVICE

6 Reasons Why Your Central AC Emits Bad Smell

6 Reasons Why Your Central AC Emits Bad Smell - AC Repair

There's nothing like being in a comfy home on a hot day in Boca Raton. However, if you find yourself suddenly wondering "what's that smell?", reach out to Air Pros to see if you may need AC repair or even a full-on replacement. One of the reasons we recommend taking this step is because offensive odors from your central air conditioning have many possible sources – like the following.

Internal Motor Issues

The internal motor on a central air conditioning system may produce exhaust-like odors if it's overheating. It may be necessary to conduct AC repair to fix wiring issues if this is what's affecting the motor. Dissolving parts or hardware are additional potential sources of motor-related odors.

Blocked Drainage Line

The drainage line is what removes water from excess humidity in your home as your central air conditioning system operates. A blockage in this line may produce a musty or stale odor. Call on Air Pros for AC repair in Boca Raton, FL, to determine if this is the reason for the odors.

Sewer Line Clogs

In some cases, you may find yourself thinking you might need AC services because of strong odors only to discover you have a sewer issue. This can happen if a clogged or cracked sewer line is near where the system’s air ducts enter your home.

Circuit Panel/Motor Shorts

If your central air conditioning system is older, motors or circuit panels can develop shorts. The resulting odor usually smells like fireworks or gun powder. If not dealt with sooner rather than later by an Air Pros technician, you may find yourself needing AC replacement in Boca Raton, FL, because of related internal damage.

Dusty/Dirty Evaporator Coils

Evaporator coils are an important part of a central AC system because they remove heat from the air to produce comfy indoor spaces. However, if dust and dirt accumulates on these coils, you may notice odd odors in the air that's circulated by your unit. Having these coils cleaned by a professional can solve this problem.

Cigarette Smoke

Here is another reason not to smoke indoors: cigarette smoke can get into the evaporator coils and other parts of your central air conditioning system. Should the Air Pros team determine that this is the reason behind the foul smell, our technicians can sanitize your coils and other parts of your central AC.

Other Possible Sources

An AC repair in Boca Raton, FL, is what you will need if odors may be due to refrigerant leaks. A telltale sign of leaking refrigerant is a pungent to fruity odor similar to what's associated with acetone. If refrigerant leaks aren't detected and corrected, your system will gradually become less efficient, which could mean higher utility bills and less comfy inside air. Air Pros is also the company to call on to determine if the odors may be related to:

  • Dead animals in your ventilation system
  • Nests in the ductwork
  • Dirty ducts

Consult Air Pros Today

Once your cooling system is producing unpleasant odors, give us a call. As experts in AC repair in Boca Raton, FL, we know how to troubleshoot problems and recommend solutions that will restore your central air conditioning system. We also offer AC replacement options that will fit any need or budget. Contact Air Pros today to get professional assistance from our skilled technicians.

AC Repair AC Installation
Back to blog

As Seen On

Air Pros on Miami Herald
Air Pros on The CW
Air Pros on The Sun Sentinel
York AC Units
Carrier AC Units
American Standard AC
Rheem Logo - Install Air Conditioning Units
nate certified hvac
EPA clean air conditioning
Trane AC Units
Goodman AC Units

Current AC Specials

Tune Up Central AC


One-Time Summer Offer

  • Full System Review
  • We Check Drain Line
  • Test Amps & Voltage

Installation Central AC


Starting Price for new AC Units

  • Rheem AC Units
  • Highly Reliable
  • Financing Available

Preventive Maintenance


  • Starting Price
  • Preventive Maintenance
  • 2 Visits Per Year
  • Rheem AC Units
  • Highly Reliable
  • Financing Available

Free Diagnostics


With Any Repair Made To Residential Central Air Conditioner Unit

  • Great Value
  • Keep Costs Low
  • Professional HVAC Team

We Beat Any Advertised AC Repair Price!

Call the Pros That Know

Sign Up For Air Pros Email Updates

Get notified of hot (and cool) AC deals, tips & breaking news!

Marketing by
Call 877-299-0228 angle-down arrow-down arrow-right arrow-up-right bubble checkmark cross envelop facebook facebook22 folder google-plus instagram linkedin location menu phone play3 price-tag power quotes-left quotes-right spinner star-empty star-full star-half twitter user yelp youtube pipe-3 pipe-4 pipe-5 pipe-6 pipe-7 pipe-12 tap tap-leak-1 tap-leak-2