Monday, 15 April 2013
How do I know if something is wrong with my system?

There are several indicators that a system needs attention. The easy ones are when the unit will not reach the heating or cooling set point on your thermostat. Typically that means the unit is not working properly.

  1. If you have a digital thermostat and it is blank that means you have lost power to the thermostat.
  2. Check your breakers and if everything is okay with your breakers, call us.
  3. If the blower is not producing the airflow that you are accustomed to check your air filter.  Change it if needed.
  4. If you hear the unit come on and it makes a noise that you normally do not hear pay special attention to it and if the noise continues call us.
  5. If you see ice on your unit and it does not go away call us. Heat pump units will ice up but the unit should go into a defrost mode and the ice will go away.
  6. Smells are a good indicator that something is going wrong. If you smell gas or a burning smell turn the unit off and call us before you turn it back on.
  7. The appearance of your outdoor system is a good indicator of how well the unit is working. If it is clean and sounds smooth in its operation that is a good indicator that the unit has been maintained properly.
  8. If the outside unit has dirty coils and sounds rough get it serviced promptly.

For more information check the posts under the Failures Categorysignature

Posted on 04/15/2013 2:10 AM by Eddie Hutton
Sunday, 7 April 2013
What about estimates?

We are happy to provide estimates at no charge for new units, ductwork modifications, duct cleaning, inside air quality products, additions to a space, control systems or even  for a service call.  Just e-mail us your information or call us at 615-832-8500. duct cleaning planFor commercial projects we provide estimates from the engineering drawings or we can arrange for engineering. There is an interesting story here about a survey we made for the new owners of an older home in Inglewood.


Posted on 04/07/2013 11:40 AM by Tony Anderson
Monday, 1 April 2013
About the Spring Maintenance Check: Coil Cleaning & Hail Damage

Tim Panther, Interstate AC Service Technician, demonstrates cleaning coils and discusses hail damaged coils.


Always have a spring maintenance check before the hot weather.  Avoid having your system fail on the really hot days.  Cleaning your air conditioner’s outside unit coils is very straightforward.  First you spray coil cleaner carefully on all four sides of the coil’s fins.   Wait until you can see the cleaner foam. The foam is removing the dirt on the coils. Now use a hose with an adjustable pressure nozzle and carefully wash the foam off. The foam and dirt will quickly dissipate on the ground leaving the coils clean.  While cleaning the coils Tim inspects for hail damage.  Some units have hail guards so hail damage is not a problem. But if there are no hail guards then it is important to inspect all four sides for damage to the fins.  If the damage is minimal a fin straightener tool can be used.  If the damage is severe the coils will need to be replaced. 

You should always keep the area around your outside unit clean from dirt and especially grass clippings. Dirty coils reduce the cooling power of your system requiring more on time, more load on the compressor, and can lead to total failure of the system.  Click for more. 

Tim Panther

Posted on 04/01/2013 1:00 AM by Eddie Hutton

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