Most people don’t give their A/C a thought when it’s cold outside, but it’s still important to maintain it properly, even in the winter. It’s common to think that the best way to maintain it when it’s cold and snowy is to cover it, but this is not necessarily true.

When to Cover Your A/C Unit

If you have trees near your A/C unit, you should cover your unit in the fall to prevent it from becoming clogged with leaves and other debris. If you don’t cover it during this time, you’ll need to clear the unit regularly and before it’s first use.

When Not to Cover Your A/C Unit

Air conditioning units are built to be outside so they can withstand cold temperatures and precipitation. They do not necessarily need to be covered and covering it can actually lead to damage. A plastic cover will trap moisture in the unit, which can cause rust and other damage. It can also provide a warm place for critters to nest, so in the Spring, you might find some visitors when you pull off the cover.

However, if excessive cold and snow are forecasted, the ice can damage the coils over time. In this case, you may want to cover your unit, particularly if its position makes it particularly vulnerable to ice. BUT, to prevent trapped moisture, don’t use a plastic cover. Choose one made of breathable fabric so that moisture can escape. A fabric cover will also create less warmth, so critters won’t be as comfortable nesting.

Another option is an attachment for the unit that goes on the top of the unit to keep out debris and redirect water. You’ll need to check with the manufacturer of your unit to see if an attachment is available for your A/C model.

If you have window air conditioners, they should be removed during the winter. Do not cover them with plastic.

The outdoor unit of a heat pump should not typically be covered either. They have a defrost cycle when ice builds up, and a cover will restrict its air flow and trap moisture.

The Importance of A/C Maintenance

Regular maintenance of your A/C system can keep it working properly, reduce your energy costs, and lengthen the life of your system. Regular servicing can also detect problems that need attention before they get worse.

Some maintenance you can do yourself, such as changing filters and keeping your outdoor unit free of debris.

Professional annual servicing of your system, however, is important. This service typically  includes:

  • Cleaning components
  • Cleaning or replacing air filters
  • Inspecting all parts and making any necessary adjustments
  • Lubrication of moving parts
  • Thermostat testing
  • Inspection of the wiring

This ensures that your system is performing at its optimal level.

Signs of A/C Issues

You can look for certain signs of issues with your A/C that need attention.

  • Warm air flow
  • Bangs or squealing sounds from your unit
  • Problems with your thermostat
  • Leaking water or refrigerant
  • Strange smells
  • Humidity in your home
  • Increased energy bills
  • A/C not cycling properly

A/C Repairs

Common A/C repairs include:

  • Fixing refrigerant leaks and replenishing refrigerant
  • Coil cleaning
  • Capacitor replacement
  • Compressor repair or replacement
  • Condenser fan replacement
  • Defrost control repairs
  • Thermostat repair or replacement
  • Fuse replacement

A/C Replacement

Air conditioners typically last about 20 years, but just like every other appliance in your home, air conditioning units eventually wear down and need replacement.  Some signs to watch for include a frequent need for repairs, higher energy bills, noises or odors from the unit, leaks, and weak air flow.

If your A/C is more than 20 years old, you may also want to consider upgrading to a modern, more efficient system. You’ll see a return on your investment over time with reduced energy costs.

If you’re looking for options for your A/C needs, there are 2 common choices.

  1. Central Air Conditioner: Central air is the most common type of cooling system, using fans and ducts to distribute cool air.
  2. Heat Pump with Ductless Mini-Splits: A heat pump is an all-in-one heating and cooling solution, and can use mini-splits, which are small wall units, to distribute warm or cool air without the need for ductwork.

Choosing an A/C system

Three factors should be considered when choosing an A/C system.

  1. Efficiency – The more efficient the system, the more money you’ll save on energy bills in the long run.
  2. Capacity – Consider your available space for the system, and the capacity of the system in terms of meeting your home’s cooling needs.
  3. Price – Of course, you’ll want to keep the cost of the system within your budget.

Expert A/C Installation

If your A/C is on its last legs, or if you want to upgrade to a more efficient model, TR Miller will work with you to determine which new system best meets your needs and budget. We offer a host of A/C options and will provide expert installation. If you want to switch to a heat pump that provides all in one heating and cooling and energy efficiency, we can handle that as well.

Our Process

When you call us, we’ll send a technician to your home to evaluate your cooling needs. We’ll take the time to get to know your preferences and your home’s requirements so that we can recommend an A/C system that will suit your needs and fit your budget.

Once you have made your selection, we’ll provide a cost estimate for your approval, and then we can get to work. We’ll get your new system set up quickly and efficiently so you can start using it right away.

Going forward, we can assist with ongoing maintenance and repairs to keep your A/C operating at its best over the years.

Your Trusted Cooling Partner in the Chicago Suburbs

TR Miller Heating, Cooling, and Plumbing is family-owned business that has been serving homeowners in the Chicago suburbs for three generations. We are proud members of the local community and treat all of our customers like friends, offering dedicated customer service.

Contact us today for your A/C needs. We are here to serve you.

Author

  • brian sloan headshot

    Brian Sloan is the President of TR Miller Heating, Cooling, Plumbing & Electrical, one of the western Chicago suburbs' leading family owned home service companies, serving homeowners across more than 80 communities throughout Will, Kendall, DuPage, Kane, and Cook counties.

    TR Miller is more than a business to Brian, it's a family legacy. The company was founded by his father, Tim Miller, and Brian and his brother Jim have played an important role in growing the business from a small local operation into a full service residential HVAC, plumbing, and electrical company serving homeowners throughout the greater Chicagoland area.

    Brian's perspective on the home services industry comes from firsthand experience. Before taking on leadership responsibilities, he worked in the field as an HVAC Service Technician and Fabrication Technician, diagnosing heating and cooling systems, assembling custom HVAC components, and supporting residential installations throughout the western suburbs.

    That hands on foundation continues to influence the way Brian leads TR Miller today. He understands both the work taking place inside a customer's home and the systems, training, and support required behind the scenes to consistently deliver a great customer experience.

    Over the course of his career at TR Miller, Brian has worked across nearly every major area of the business, including operations, marketing, sales, job coordination, customer service, finance, and leadership. Today, as President, he is responsible for the overall strategy, growth, culture, and performance of the organization.

    That breadth of experience across both the technical and business sides of home services has helped shape how TR Miller operates: combining the systems and accountability of a professionally run organization with the care, responsiveness, and personal connection of a family business.
    Brian's philosophy is straightforward, make home services convenient and reliable while giving homeowners the information they need to make the best decisions for their homes and families. That means educating customers, providing clear options and upfront pricing, and making sure homeowners understand both what was found and why a repair or replacement may be recommended.

    Under Brian's leadership, TR Miller has expanded beyond HVAC into plumbing and electrical services, grown across multiple locations, invested heavily in technical and leadership development, and been recognized seven times on the Inc. 5000 list of America's fastest growing privately held companies.

    Credentials & Affiliations:
    - President, TR Miller Heating, Cooling, Plumbing & Electrical
    - Membership Officer, YPO Chicagoland
    - Board Member, Nexstar Network
    - Former Vice Chair, Board of Directors, Plainfield Shorewood Area Chamber of Commerce
    - Associate's Degree, Waubonsee Community College
    - Former HVAC Service Technician & Fabrication Technician, TR Miller

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