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Ductless Minisplits and Central AC Seasonal Cleaning

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Ductless Mini-Splits and Central Air Conditioning: Why You Need Seasonal Cleaning

Over fifteen years of servicing HVAC units in the Greater Philadelphia area, EMCO Tech has learned to expect the predictable summertime calls. 

Too often, air conditioners malfunction in the middle of the first heatwave, and homeowners frantically call our offices looking for a quick fix! We service all homes quickly and efficiently, yet inevitably many homeowners will spend some time in a hot home, waiting for service.  

Fortunately, you do not need to wait for a problem. You can optimize your air conditioning system or ductless mini-splits now (before the summer’s first heatwave). Homeowners can avoid Most air conditioner problems with regular maintenance and routine cleaning.  

While many homeowners understand the value of routine maintenance for air conditioning units and ductless mini-splits, few understand the importance of regular cleaning. Most people do not spend too much time thinking about air conditioning units. Most air conditioners work reliably enough during the warm months, and because homeowners cannot see the unit’s inner workings, regular cleaning is often an afterthought. 

This neglect often leads to sudden problems—and often at the worst time. Perhaps more insidious than sudden problems, however, is the daily impact of dirty central air conditioning systems and ductless minis-splits, both of which can collect dust, pollen, and mold. 

Indoor Air Quality: Is Your Home’s Air Healthy?

In recent years, Philadelphia pollution has caused at least 126 premature deaths and hundreds of hospitalizations. Yet, as reported in 2016, Philly “has a long, long way to go” to clean the outdoor air. Reports like this draw much-needed attention to the negative impacts of air pollution. For Philly natives, “air pollution” means the smog over the William Penn statue, cars lurching on the Schuylkill Expressway, and fumes spewing into the city skyline. 

But outdoor air pollution may not be the most harmful pollution for human health. A study published in Science of the Total Environment notes that “indoor air pollution may be as much or more of a problem as pollution outdoors,” and the problem may be worse during the summertime when people rely on air conditioning systems to cool indoor air.  

So what can we do to clean our indoor environments? The scientists who published the study in Science of the Total Environment suggest installing “environmental sensors” to monitor indoor air quality. But simply monitoring air quality will not clean the air.  

For many homes, the problem lies in dirty HVAC systems, and during the summer, the prime culprit is dirty air conditioning units or ductless mini-splits. 

Cooling Performance: Is Your Air Conditioner Working Efficiently?

If you have a central air conditioner, you must change your unit’s filters periodically. 

To clean the filters on your ductless mini-split, you must remove the filters from the unit and manually clean and dry. Cleaning your filters is perhaps the most critical periodic task for assuring a clean and efficient system. As the US government notes, “Replacing a dirty, clogged filter with a clean one can lower your air conditioner’s energy consumption by 5% to 15%.”

However, your system likely also requires a periodic “deep clean” of the condenser fan, evaporator coils, coil fins, and drainage elements. Neglecting this sort of cleaning will guarantee a steady decline in air conditioner performance and indoor air quality. 

To work efficiently, all of these elements are tightly spaced in air conditioning units. The tight spacing combines with airflow and moisture to create a breeding ground for dirt, debris, and even mold.

Beyond the potential impacts on indoor air quality, over time, this build-up will compromise system performance. Dirty coils, for example, can block airflow, making your system work much harder to achieve the same cooling effect. The cleaner the coils—and other elements—the more efficient the system. 

Dirty Air Conditioner or Ductless Mini-Split? Call EMCO Tech for service in South Philadelphia.

Since 2006, EMCO Tech Heating and Cooling has successfully cleaned central air conditioning systems and ductless mini-splits for clients in the Philadelphia region, including Bucks County, Montgomery County, Delaware County, and Chester County, PA. 

If you believe your air conditioning system or ductless mini-split unit needs a seasonal cleaning, please contact us today to schedule a home visit.

Residents of South Philadelphia zip codes: 19112, 19145, 19146, 19147, 19148 should consider installing ductless minisplit in older homes, where there’s not enough room for central air conditioning.


  • Kevin Geary Need a Mini-spilt cleaned and serviced Reply
    • Admin G Hello, our office staff will be contacting you shortly to schedule your minisplit maintenance service. Any questions, feel free to reply to our email or call us 215-366-1001. Reply

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About EMC

Emergency Maintenance Company field supervisors have been servicing heating & cooling equipment in Philadelphia and the surrounding suburbs for over 30 years. We have repair and installation experience with all residential and commercial manufacturers of HVAC equipment located in Montgomery, Bucks, Philadelphia, Chester, and Delaware Counties.
EMCO Technicians are well known for their quick troubleshooting and emergency repair service calls. Our office staff delivers superior customer service, and our trained technicians use state-of-the-art diagnostic equipment to diagnose HVAC problems quickly.
We pride ourselves on offering cost-effective repair and replacement solutions to meet your HVAC servicing needs.

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