What Are the First Parts of an HVAC Unit That Will Likely Need Replacing?

What Are the First Parts of an HVAC Unit That Will Likely Need Replacing?

Having HVAC problems is not a good feeling at all. You may feel helpless to figure out what could be wrong. Even though it’s one of the most complex systems in the average home, you can pick up a few HVAC basics and to help you know which parts typically require the first replacement. Here’s what to know:

HVAC Basics

You should be very familiar with the HVAC filter, but what about the rest of the system?

  • Evaporator and condenser: The indoor and outdoor cooling and heating coils of central air systems and heat pumps.
  • Compressor: The heart of the outdoor unit that pumps refrigerant between the coils.
  • Ductwork: The HVAC “lungs” that transport airflow through your home.
  • Electrical: HVAC units have an array of electrical parts, including the thermostat.

Media Filters

It can not be overstated how important it is to replace your air filter as needed to protect the parts of your HVAC system. Disposable media filters are the first replacement, usually lasting one to three months. Use a pleated filter, as it has a larger interception area.

Electrical Parts

One of the many electrical parts that may be the first to be replaced (lasting four to six years) is the capacitor. If ever you turn on your thermostat only to hear a clicking noise, with no cooling or heating powering on, you may have a worn-out capacitor. Call your HVAC technician for assistance.

Compressor Troubles

Conventional compressors have many moving parts. And, like any motor with many moving parts, it may be the first to be replaced among the major parts. Now, if you are shopping for a new central air system, you may well have a great warranty that covers the compressor for several years. However, if your HVAC system is at least eight years old, don’t be surprised when the compressor goes out.

Blower Motor

The blower motor deserves kudos for supplying your home with conditioned air. It also needs a lot of protection from dirt and grime — which is why you change your air filter regularly, right? Service the motors each year and they will serve you well.

For more about first-replacement parts, contact Aggressive Mechanical Contractors, Inc.

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