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When To Have Your HVAC System Replaced

Feb 3, 2023 | HVAC System


Unfortunately, even the most wonderful things have an end. Your HVAC system will eventually need to be replaced. You should replace your HVAC system if it is old, noisy, or inefficient. Your HVAC system will be one of your largest investments. It’s only natural that you want the best from your HVAC system. Your HVAC system will eventually need to be replaced, regardless of how timely you maintain it or if you make repairs.

Your unit should last between 10 to 15 years before you have to replace it. Sometimes, the system’s age and how hard it has worked may call for an early replacement. You need to ensure you have regular ac repairs and maintenance in order to maintain good indoor air quality. Here are some reasons you shouldn’t wait to replace or repair your unit:

Old HVAC units use more energy

Do you recall when your AC system was first installed? The Department of Energy recommends that your HVAC system be replaced every 10 to 15 years. Most units are durable but most major components will deteriorate within ten years depending on how they are used, maintained, and repaired. A high utility bill only once or twice might be cause for concern. If you get high utility bills more than once, it may be a cause for alarm -you might need a new system.

High repair costs

You may be unsure whether to replace or repair your HVAC unit as it can be a costly investment. A new unit might be a better option if your HVAC system is older. Air conditioning repairs are necessary from time to time. However, air conditioning repairs that exceed half the cost, a new unit may be necessary.

Temperatures are inconsistent

An old AC unit will have a harder time maintaining a constant indoor temperature. It could be due to a damaged thermostat, an inaccurate thermostat, a clogged filter, or motor damage.

Your HVAC system may be struggling to provide warm or cool air throughout your house if there are inconsistencies in indoor temperatures. This unit can lead to higher energy bills and a less comfortable indoor environment. Air conditioners don’t all work the same. Your home layout, size, and location will affect how efficiently your unit performs.

Dust buildup in your home

Did you notice that your home remains dusty after all the cleaning? What is the source of this dust? Your AC unit may be having problems if the dust settles on furniture after you have cleaned your home. Your air conditioner is supposed to clean your home’s air, but your unit could be making your home dustier.

Strange smells

If you smell strange odors coming from your unit, it is likely that you will need to have it repaired. A smell like rotten eggs could indicate that an animal has died nearby your condenser. Mold can also be detected by other smells, such as urine, stale socks, or ammonia. An HVAC contractor can assist you in repairing your unit if these smells persist.

Other smells could indicate that your unit needs to be replaced. Gunpowder or sulfur are the main smells. These smells indicate electrical problems. It could be that something has blown out of place or gotten fried. If your unit does not turn on or you smell these smells, contact a technician immediately to have it replaced.

Strange sounds

The HVAC system will usually produce a soft sound when it pushes air through the vents. There are other indicators that your HVAC system needs maintenance or repair. If you hear any weird noises, you should have it checked.

Inefficiency increases

Inefficient HVAC systems can do more than make your home hot and reduce indoor air quality. They will also cost you a lot over the long term. It is important to repair your HVAC system as soon as possible. This will help you save money every month on your electricity bills. Instead of your HVAC system running at full speed to maintain indoor air quality and heat your home, it will be able to reach the desired temperature.


Contact an HVAC contractor in Knoxville if you’ve noticed that your HVAC unit needs repair or replacement. Regular maintenance can extend the life of your HVAC unit. As you enjoy the heat, make sure you have a quick tune-up to replace damaged parts or fix minor problems.

Do you think your HVAC system needs to be replaced? Call  J.C.’s Heating and Air to discuss your options.

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J.C.’s Heating and Air
3110 Henson Rd Suite 7
Knoxville, TN 37921

Areas Served: CorrytonFountain CityHalls CrossroadsFarragutPowellKnoxvilleKnox CountyOak RidgeLenoir City

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J.C.'s Heating and Air
3110 Henson Rd Suite 7
Knoxville, TN 37921

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