Email This Article
Your Name:
Your Email:
Email To:
5 + 7 = ?: (Required) Please type in the correct answer to the math question.

You are sending a link to...
Get Ready for Spring!

Getting ready for spring often means planting and sprucing up the yard, but it also means getting ready for air conditioning season.  When it comes to spring HVAC maintenance, there are some things you can do and some you’ll probably want to leave to the professionals.

Here are the things you can (and should!) do:

Change the air filters, and make sure the vents are not blocked.air filter



Clean the area around the outside unit. Trim overgrown grass, bushes or trees, to give the unit at least 3 feet of clearance on all sides.



With a garden hose, rinse the outside unit, cleaning dirt that built-up over the winter on the fan blades and fins. For detailed instructions, and precautions regarding coil cleaning products, see our video “The Low-Down on Coil Cleaning.”



With all the rain Nashville has gotten lately, you’ll want to make sure the ground and concrete pad the unit is sitting on hasn’t shifted, and that it is level. Check our video “How Rain & Flooding Affects Your HVAC System” for more.



Blow out the condensate drain and clean the pan.  For step-by-step instructions, see our video “Clean Condensate Lines to Prevent Mold.”



Verify your thermostat is set correctly. Set the date and time, set programming functions for summer operation, and be sure to switch the mode to “Cool” and the fan to “Auto.”


Reverse the settings on any ceiling fans so that the blades are whisking the air upwards. Check out our video post “Are you a ‘Fan’ of Changing Seasons?


Check basements and crawlspaces to ensure they are not trapping moisture which can feed extra humidity into your air ducts.  Nashville’s summers are humid enough!



Some of the most vital spring maintenance tasks will need to be performed by a licensed HVAC technician.  These include:

  • Measuring the refrigerant level, adding refrigerant if needed, and checking for refrigerant leaks.
  • Inspecting all the electrical connections, motors, and safety controls.
  • Lubricating all the moving parts, especially the fan motor.
  • Inspecting and replacing belts as needed.
  • Checking the supply and return temperatures.
  • Cleaning the condenser coils and the condensate drain.

Never forget, the purpose of doing spring maintenance is to avoid breakdowns and expensive repairs, to keep your system running at peak efficiency, and to prolong its life!  The time and effort you put into it now, including having an HVAC spring maintenance check, will pay off down the road.

If you live in the Nashville area and need a maintenance check, call on Interstate AC Service, at 615-832-8500.

Important Tips & Advice



You often don't think about your heating or air-conditioning system until something goes wrong. But there is so much you can do to help keep your system from breaking down. We regularly post information to help you learn what you can do to keep your system running, to save money and energy.  Search our many posts, videos, and podcasts, for valuable information that is never a sales pitch. Subscribe to receive an email when something new is posted, so you won’t miss any important tips.

Choosing a Repair Company

Whether you’re talking about heating or cooling, repairing or replacing a system, you want a company that can advise you reliably based on what is in your best interest, not based on what is convenient or what earns them the most money (commissions). We'll help you choose the best solution to fit your needs. Check out our many posts at HVAC News You Can Use and our podcasts.

Going Green

We're concerned about the environment and know all the latest technologies - such as geothermal systems, LED lights, and smart thermostats - that can reduce energy and put more "green" in your pocket!  We've provided HVAC systems in certified LEED buildings and written many posts on ways to Go Green.

The Sign of Service

We are a repair company performing a full range of commercial and residential heating, air conditioning, energy management and comfort products service, maintenance, and installation. We are a locally-owned company serving Nashville-Davidson County and the surrounding counties including Williamson, Rutherford, Wilson, Sumner, Robertson, and Cheatham.

Who We Are

Our service technicians are fully trained and experienced.  We can tackle the most complicated system to the simplest of systems – from large commercial plants to single-family homes.  Our ownership group of Eddie Hutton, Tony Anderson, Roger Eldridge,  Swaney Powers and Alan Seilbeck have over 125 years combined experience as leaders in the HVAC industry.


We are proud of our dispatchers that respond to your telephone call. When your system is down they make things happen. Our trucks are loaded with most parts needed for a quick repair. You can call day and night 7 days a week. Our normal weekday hours are 7:00AM to 5:00PM. Click on the button below to schedule a service call online. Emails and forms can only be answered weekdays from 7-5.”  

615-832-8500 Online Service Call


Did you know you should service your HVAC on a regular schedule – just like you would your car?  We have specialized maintenance programs to ensure the clean, energy efficient and safe operation of your HVAC systems.  This helps minimize service interruptions/breakdowns and maximize your equipment's lifespan.  All maintenance contract customers are assigned a primary technician that will get to know your facility and equipment and will treat it like his own.  You’ll receive discounts on repairs or new installations, and get priority service when it is cold or hot outside and you need service promptly.  Plus, maintenance contract customers are never charged overtime rates for emergency services after-hours, weekends or holidays. We’ll teach you how to save on maintenance costs by showing you things you can do yourself and when you need a technician. Here are some good posts:  Repair vs. Replace, Things to Try Before Calling for Service, Springtime Tips that Pay Off.


Our team takes on HVAC projects for office, school, retail and industrial facilities. Check out these case studies:

Replacement of a 250-ton Cooling Tower

Ductless HVAC at Brentwood Middle School