You turn on the air conditioner and suddenly notice something strange coming from the vents: a fishy smell.

What in the world is causing that?

In this episode of the Home & Life Comfort Podcast, we break down what a fishy smell from your AC could be telling you and why it’s not something you should simply cover up with an air freshener.

One possible culprit is moisture getting into your ductwork or insulation. Here in southeastern North Carolina, damp crawl spaces, standing water, plumbing leaks, high humidity, and wet duct insulation can all create odors that get carried into your home when the HVAC system starts running.

But there’s another possibility you shouldn't overlook: an overheating electrical component can sometimes create an odor people describe as fishy or similar to hot plastic.

In this episode, you'll learn:

• Why wet duct insulation can create strange odors
• Why your crawl space may be the first place to investigate
• How attic leaks can affect ductwork
• Why drying wet insulation doesn't always solve the problem
• When damaged duct insulation may need to be replaced
• Why a fishy smell could indicate an electrical issue
• When you should turn your HVAC system off and call a professional

The biggest lesson is simple: don't just treat the smell. Find out what's causing it.

Your HVAC system shouldn't make your house smell fishy. If it does, that odor may be your warning that water or another problem is somewhere it shouldn't be.

🎙️ Home & Life Comfort Podcast with Derek Cole

Practical heating, cooling, indoor air quality, and home comfort advice to help homeowners understand their HVAC systems and make better decisions for their homes.

Have you ever noticed a musty smell coming from your vents right when the air conditioner kicks on?

That smell isn't something you should just cover up with an air freshener. Your AC may be trying to tell you there's moisture and organic growth somewhere inside the system.

In this episode of the Home & Life Comfort Podcast, Derek Cole explains why air conditioners can develop that familiar musty odor and what may be happening inside your indoor unit.

Your air conditioner doesn't just cool your home. It also removes moisture from the air. As warm, humid air moves across the cold evaporator coil, condensation forms and drains into a pan below the coil. When moisture sticks around because of a dirty coil, clogged drain, or drainage problem, you've created the kind of damp, dark environment where organic growth can develop.

In this episode, you'll learn:

• Why your AC produces water while it's cooling your home
• Where that musty smell is usually coming from
• How the evaporator coil and drain pan can contribute to odors
• Why simply masking the smell doesn't solve the problem
• How UV germicidal lights and coil scrubbers can help prevent organic growth
• Why regular HVAC maintenance still matters

If your house smells fine until the AC comes on, don't ignore it. Finding the source of the moisture and correcting the problem can help keep your system cleaner and your home's air smelling fresher.

🎙️ Home & Life Comfort Podcast with Derek Cole

Practical advice about heating, cooling, indoor air quality, and home comfort from more than 20 years in the HVAC industry.

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Serving Fayetteville, Pinehurst, Southern Pines, Aberdeen, Laurinburg, Rockingham, Lumberton, Sanford, and surrounding communities.

Is it normal for your air conditioner to need refrigerant every summer?

No—and that's one of the biggest misconceptions homeowners have.

In this episode, we explain why refrigerant isn't something your air conditioner "uses up." Your HVAC system is a sealed system, so if it's low on refrigerant, there's a reason: it's leaking.

You'll learn:

• Why adding refrigerant every year isn't a repair.
• The simple analogy that makes refrigerant leaks easy to understand.
• What happens to your air conditioner when refrigerant is low.
• How low refrigerant affects comfort, efficiency, and the life of your system.
• When adding refrigerant may be a temporary option—and why finding the leak is the real solution.

If you've ever been told your system "just needs a little Freon every year," this episode is for you.

Whether you're trying to avoid expensive repairs or simply want to better understand how your air conditioner works, you'll walk away with practical knowledge that could save you money and frustration.