Each year, the average American can expect to spend 1-4% of the value of their home on maintenance and repairs. One of the most vital systems in your home is your HVAC system, but if left unchecked, you may end up with costly repairs, excess energy consumption, or system failure.

If you want to keep your system running at an optimal level, HVAC maintenance is key. Unsure when you need your maintenance? We’ll let you know when and why to call a professional.

You Hear Loud and Unusual Noises

Odd sounds in your AC unit often signal underlying issues. If you hear anything like clicking, grinding, buzzing, banging, or rattling don’t wait to call a professional. Strange sounds might mean your motor is faulty, a loose belt or parts, an electrical problem, or a damaged compressor.

Strange Smells

If you detect any odors in your HVAC resembling chemicals, burning, or unusual smells, turn off your system right away. An HVAC company can inspect the system to find the source and determine whether your system is safe to use. 

It Isn’t Heating or Cooling Your Home As it Should 

The first sign for many homeowners that something is wrong with their HVAC system is when they aren’t putting out any hot or cold air. Sometimes this turns out to be a simple fix, such as clearing a restricted airflow, but when left too long, it may result in an HVAC system replacement. 


When you notice a leak in your HVAC, it’s important to identify whether it’s leaking water or gas. While leaking water isn’t an emergency, any signs of gas should be dealt with at once. Leaking gas can be dangerous and you should contact an HVAC professional for system repairs as soon as possible.

The System Won’t Turn On or Kicks On and Off

There are several reasons why an AC system may not turn on that a professional can help you identify. If your system is kicking on and off, that is known as short cycling.

Short cycling occurs when a failure in the system shuts it down quickly,. but the system continues trying to restart the process. An expert technician will identify the root cause and return your system to optimal performance.

Higher Utility Bills

Has your utility bill gone up? If you haven’t increased any other energy usage in your home, this can be a sign of a problem with your HVAC system.

Outdated units are a common culprit to expensive utility bills and might mean you need a new HVAC system altogether. Another cause is clogged filters and condensers that make your system work harder to function.

Don’t Skip Out on HVAC Maintenance

Keeping up with HVAC maintenance is a must for any homeowner. By calling a professional at the first sign of trouble and having your system inspected regularly, you’re protecting yourself from more serious problems down the road. 

Seeking HVAC services near Franklin, TN? At Sewell Electric and HVAC, we’ve got you covered. Contact us today to get started!