If submitting a service request after hours or on the weekend, please note it is best to call.
(361) 235-3905 Request Service

Can The Type Of Blower Motor In Your New A/C System Really Make A Difference In Efficiency And Comfort?

February 7, 2013 | Blog

The long, hot and humid summers along the Coastal Bend mean many of us run our air conditioners for the better part of the year. If you don’t want to be left with high electric bills, an energy-efficient air conditioner is essential.

One of the most significant factors affecting a system’s energy efficiency and performance is the type of blower motor it uses. If you’re shopping around for a new air conditioning system, take a moment to get acquainted with the most common types of blower motors.

Shaded pole motors – The oldest type of blower motor, this AC induction motor is neither efficient nor particularly flexible. It uses a single coil assembly (winding) to turn the rotor, which accounts in part for its inefficiency. On the upside, this type of blower motor is cheap and reliable.

Permanent split capacitor motor (PSC motor) – This is another type of AC induction motor usually found in less efficient HVAC systems or those older than 10 years. This motor has two windings, which combined with other design elements, improves its efficiency. Although a PSC motor is approximately twice as efficient as a shaded pole motor, its efficiency averages only around 50 percent. This motor is also less efficient at lower speeds.

Electronically commutated motor (ECM) – These brushless DC motors are the most efficient and flexible blower motors available today. ECMs average around 80 percent greater efficiency than PSC motors. You’ll often see ECMs referred to as variable-speed motors because they can adjust their speed to more effectively meet your cooling and heating demands. They’re efficient at all speeds, so they run at lower speeds for longer periods than systems with PSC motors. This keeps your home’s temperature consistent and helps control humidity.

An ECM adds to a system’s purchase price, but the greater efficiency means you’ll recoup your investment within a few years.

If you’re looking for a new A/C system or other ways to improve your home’s energy efficiency and comfort, contact us at CCAC, Inc. We’ve been proving reliable HVAC care around Corpus Christi for more than 35 years.

Our goal is to help educate our customers in Corpus Christi, Texas about energy and home comfort issues (specific to HVAC systems).  For more information about blower motors and other HVAC topics, download our free Home Comfort Resource guide.

Image courtesy of Shutterstock

Constantly Concerned About You!

Professional Team
Our ac technicians are highly trained, professional and committed to getting the job done right the first time.
Reliable Service
You can count on our expert ac technicians to provide high-quality air conditioning services with quality products and transparent pricing.
Customer Service
You deserve excellent customer service. That's why we strive to be courteous and professional through the entire service process.

What Our Customers Are Saying

Very Satisfied

I’ve had a system purchased and installed by them for several years with the maintenance contract the whole time. I’ve been very satisfied with the service. You can’t go wrong selecting them for your business.

Joseph S.

Pleasure to Work With

Mathews CCAC conducted the semi-annual inspection of the A/C, heating system for the fall check-up, Technician was on time, courteous and went quickly about the inspection and observed all COVID-19 protocols for his and our safety a pleasure to work with this company

Steven L.

Great Company

Great company. Contacted my current AC company to check on my warranty before charging me anything. Saved me a bunch of money and headache if dealing with anything. Would definitely recommend them and use them again.

Ryan W.