There were rodents in the ductwork system
Once it’s been spotted and removed, you should scrub the area to get rid of the terrible stink and scrub the area.
While it’s common for homeowners to discover a rat, mouse, or other small rodent has died in their ductwork, it’s not a very nice experience. Often, it will leave you with a horrible stink and mess to scrub up! Even though the animal died in your ductwork system, the stink will likely seep into your household and cause your entire place to stink. While it’s best to have this category of situation handled by a professional, there are some things you can do in the event a small animal dies in your ductwork. The only way to determine where an animal died in your basement, attic, crawlspace, or ductwork system is to follow the scent… If you can visually see the animal, you can proceed with removing it. If you don’t see it right away, you may need to think about hiring a professional to search for a disposal of the animals. Animals commonly crawl into nooks or dark corners, or even into the insulation to die, making it relatively difficult to find. Once it’s been spotted and removed, you should scrub the area to get rid of the terrible stink and scrub the area. One thing you should do after all of this is to have a thorough inspection of your HVAC device and ductwork to learn how the animal was able to make its way into your ductwork in the first place. It’s essential to find them to prevent another animal from getting into the ductwork system, and also improve efficiency of your system! You may also want to think about having your ducts professionally cleaned. Though this complication you may be able to service on your own, you can see why it may be helpful and even crucial to hire a professional to come in and assist you with the setback.