Wednesday, 15 August 2012

Eddie Hutton answers the question this way.

filter imageThere are two main reasons why your air conditioner will fail. The number one reason is a dirty filter. A dirty filter in the return duct blocks the air flow causing the unit to have to work harder to cool to the desired temperature.  It is just so easy for the home owner to fix this problem, just replace the filter. You can buy filters at Home Depot, Lowes, Ace Hardware and many other retail stores or online.  Don’t by a cheap one that can only stop dogs and cats. Buy a pleated filter. The pleats increase the amount of surface area available to capture particles. Filters come in various sizes, thicknesses, and performance ratings with prices to match.  Performance is measured by the ability of the filter to capture micro particles of 0.3 to 1 micron such as pollen, dust, and pet dander.  Some pleated filters are electrostatically charged which increases their effectiveness.  

switchThe number two problem that causes your unit to fail is the contactor (a switch) that turns the power to the compressor on and off when signaled by the thermostat.  It is mounted in the outside unit under the cover. The contactor has to switch heavy currents to get the motor running. The electrical contacts will wear out eventually but a common reason for failure is insects building nests between the contacts during the seasons when air conditioning is not required. Part of the spring preventative maintenance check is to test the contactor. If the contacts are in good shape then it’s easy to clean out any insect particles. Otherwise the contactor will need to be replaced.  Our trucks carry a variety of contactors so they can be replaced during the spring visit. This will most likely save an emergency call during the heat of summer.

Air conditioning systems are not all that complicated for people with a little technical knowledge.

Posted on 08/15/2012 2:00 AM by Bob Duthie
Wednesday, 1 August 2012

Tony Anderson, Partner, answers the question this way.

There are huge differences among service companies. Of course all companies can be good and all can be bad. The first major difference is size. There are large companies and small companies.

building image

Let’s first focus on the large companies.Some large companies train their technicians to be commissioned sales people.That’s not good for our industry because sales people want to sell you equipment rather than repairing and maintaining your equipment. Interstate AC is a service company and we do not pay our technicians commissions.* We pay our technicians by the hour.We have had technicians apply for jobs whose experience was at companies that pay commissions for equipment sales and got the majority of their pay that way. They won’t work here as they just don’t fit our culture.



house imageLet’s talk about the small companies. The advantage is you may get to know their technician as the same person comes on every call. However, the disadvantage with the small company is if they get two calls at the same time they are covered up.We run 21-22 service technicians so we can get to people quickly. Our technicians keep our trucks at their homes. Their homes are spread out all over our service area. Our dispatchers know where they are and can send the technician that is at a home close to yours or currently working in your area. Our dispatchers are good at ensuring the guy keep working every evening until every customer gets serviced.Some firms have to say it will be three days before we can get there. That never happens in our company. We might roll you over to the next day if it’s not an emergency but if it is an emergency we get there!


Posted on 08/01/2012 2:37 AM by Tony Anderson

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