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A musty smell when the AC starts up is a familiar complaint in established neighborhoods like Maxwell Creek North, Windy Hill Farms, and Rolling Ridge Estates. Those systems have run through many North Texas summers.
Harris Air Conditioning and Heating Repair is a family-owned team serving McKinney and surrounding communities since 2008. Our indoor air quality services in Murphy track that smell to its source and clear it up.
The smell is often the first clue. It tends to show up when the AC starts and fades once the system has run for a while.
Other signs include a damp area near the indoor unit, allergy symptoms that worsen when the AC is on, and a coil that looks dirty or slimy when inspected. If any of that sounds familiar, the coil and drain area deserve a close look.
Musty odors have a few possible causes, so we start with the coil and work outward.
We show you what we find before we recommend anything.
A damp, dirty coil does more than smell bad.
Cleaning and treating the coil early keeps small problems from growing.
Many established homes in Maxwell Creek North, Windy Hill Farms, and Rolling Ridge Estates have had the same cooling system for years. An evaporator coil stays damp every time the AC runs, and over time dust and moisture can build a film that produces a musty odor.
We inspect the coil, drain pan, and blower, and we show you what is there. Cleaning comes first, and we then discuss UV light or filtration upgrades that help keep the coil cleaner between seasons.
Murphy homeowners deserve someone who will explain the problem and stand behind the work. That is who we are.
It is the kind of service neighbors expect from neighbors.
We also serve homeowners in nearby Plano, Wylie, Sachse, Allen, Parker, Lucas, and McKinney. Whether you live in Maxwell Creek North or near Aviary, we are close by.
Moisture and dust on the evaporator coil or in the drain pan are common causes. The smell often shows up at startup, then fades. A coil cleaning and a closer inspection usually pinpoint it.
UV lights help control growth on the coil and drain area, which is a common odor source. They work best with a clean coil and good filtration. We tell you if one fits your system.
A mild odor is usually a maintenance issue, but it is worth fixing. If the smell is strong, comes with symptoms, or you see water damage, have the system inspected soon.
It depends on filter quality, dust levels, and how often the system runs. We check it during service visits and recommend cleaning when buildup affects performance or air quality.
Yes. Damp carpet, pet areas, and drains can also cause odors. Air quality testing helps us tell whether the source is the HVAC system or the home itself.