Which HVAC Parts Will Likely Need to Be Replaced First?

The first replacement in an HVAC system is usually something you can take care of yourself: The system’s air filter should be replaced at least every other month during winter furnace operation and every month in the summer when the air conditioner’s running. Regular filter changes are critical to aid optimum system performance, energy efficiency, and reliability. It’s a simple process, so if you don’t know how, your HVAC contractor will demonstrate it for you.

After that first replacement is done, what’s next? HVAC units today are designed and engineered for long service life with few issues, assuming annual preventative maintenance is performed on the system.  Still, mechanical and electrical components are subject to inevitable wear and tear and may require eventual renewal. Unlike filter changes, these are not do-it-yourself procedures and must be handled by a qualified HVAC service technician. Here are some HVAC components that may develop issues after that first replacement:

The AC contactors and the capacitor.

To actuate the powerful compressor in the outdoor air-conditioner unit, a high-powered capacitor and contactors are required. These electrical components may fail after an average of five to seven years due to heat and wear. They are often the first replacement parts required in a central AC. A qualified professional service tech can handle this routine job quickly.

The system blower fan.

Installed in the indoor air handler, the fan circulates air throughout the house during both air conditioner and furnace operation. Because wear and tear on the blower fan occurs year-round, the motor may fail before other common components.

The AC coils.

Refrigerant circulating through the indoor evaporator coil and outdoor condenser coil moves indoor heat outdoors to cool the home. Over time, dust and dirt accumulation, corrosive effects of air pollution, and vibration from system components like the compressor may trigger coil leaks. Refrigerant loss due to coil leakage degrades cooling performance and eventually damages the system compressor.

Whether it’s a first replacement part or annual professional maintenance for maximum reliable system life, the professionals at Paitson Bros. have been at your service since 1922.

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    By Jeff Paitson
  • About Jeff

    Jeff Paitson Jeff Paitson is a third generation business owner who continues to run the business with the same values that have been passed down from previous generations since 1922.

    Jeff’s belief is that the business belongs to Jesus Christ; therefore 10 percent of the company’s profits go toward the Maryland Community Church.

    Jeff is a Terre Haute Chamber of Commerce member and in his spare time, he enjoys photography.
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    Ethan Ethan Rayburn is a lifelong resident of Terre Haute and a 2005 graduate of Purdue University.

    An Eagle Scout, Ethan spent four years as a non-profit executive with the Boy Scouts of America before joining Paitson Bros. as a comfort advisor and later General Manager. In that role, Ethan has brought a renewed enthusiasm for customer care, integrity, value, and service to Paitson Bros. Heating & Air Conditioning.

    Ethan enjoys singing and was a member of the Purdue Varsity Glee Club. He also enjoys playing and coaching soccer, spending time with his family and two young boys, and volunteering his time and resources with his church, Terre Haute First Baptist Church, which he has attended from a very young age.
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