The Most Common Furnace Issues

Lifetime'z Heating & Air Conditioning > Blog > The Most Common Furnace Issues

With winter approaching, you rely upon your furnace’s ability to manage the temperature in your house. Having your furnace working correctly is essential to ensure that your energy bills remain minimal and your home remains at the pleasant temperature you require. With increased wear and tear, your Carrollton heating and air systems may fail for various reasons. 

If you reside in Carrollton, TX and are in need of HVAC assistance, contact Lifetime’z Heating & Air Conditioning.

Common Furnace Problems. 

  • Malfunctioning Thermostat

A malfunctioning thermostat could make your home cooler than it should, and your furnace might not run properly. In certain situations, the thermostat might require the furnace to run too long. It could lead to high energy costs.

  • Dirty Filters

Clogged filters restrict airflow, which causes your furnace to work harder. It can result in the heat exchanger overheating and shutting the unit down. An inefficient furnace that produces less heat can cost you more on frequent repairs. Make sure you replace the filters.

  • Wear And Tear

When your HVAC gets older and wears out, you could face issues with wear and tear. It could be the noises from your furnace and problems with its cycling. It could also be that your furnace does not warm your home. According to our experts performing water heater repair Carrollton TX, if this occurs, you’ll need to contact a professional for the task.

  • Dirty Burners

According to our heating and air experts, if your burners become clogged up, they will not release enough natural gas to start combustion, which means you won’t get any heat. Healthy burners emit blue flames. Any other color, for instance, orange or yellow, is a sign that there is a problem. If you reside in Carrollton, TX or the surrounding areas, and are in need of HVAC assistance, contact Lifetime’z Heating & Air Conditioning.

  • Limit Control Switch Doesn’t Work

If your fan’s blower is running continuously, and you’re sure your thermostat is set on auto mode and not on mode, the limit control switch could be the cause. This switch, which is situated below the box responsible for directing heat from the furnace into the ducts, turns off the unit when it becomes too hot. Our HVAC professional will replace or adjust the limit switch if the unit does not shut off.

  • Pinging or Popping Ducts

As ducts heat up, they expand. When cooling, they contract again. It is the reason for the pop sounds that you hear. There could also be an open metal part within the duct, which twitches when air passes by it. If you can track the sound’s exact location, you can make a small scratch in the area to see if this will stop the sound.

  • No Heat

The furnace may not even heat due to various reasons. Immediately contact a technician if you experience issues with your furnace not being turned on or heating. 


Your furnace requires regular maintenance performed on it. It is best to maintain it at least every year. Furnace and heating system inspections are usually performed in the summertime before the temperatures get cold. 

Reach out to Lifetime’z Heating & Air Conditioning for top-quality, reliable service. We’ll ensure that your furnace is in top working order to ensure your home is safe, warm, comfortable, and cozy through the winter season. Call us at 972-846-9950 or drop us a mail to schedule an appointment for water heater repair in Carrollton, TX.  

Get a Quote