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Check Out These Reasons Why Your HVAC System May Need Replacing


In most cases where your HVAC system has a problem, the issue can be fixed with a few simple repairs, or perhaps cleaning of the unit. Sometimes, however, HVAC systems experience issues that are either unfixable or would cost so much to fix that you’re better off just buying a new unit.

In the latter case, you’ll want to find a trusted HVAC installation company like Korte Does It All, who can replace your system at a reasonable price. The following are some lesser known reasons you should call about HVAC system replacement:

It May Be Leaking Carbon Monoxide


Carbon Monoxide is a deadly gas that has no color, taste, or odor. This makes the threat of carbon monoxide poisoning very real, and very dangerous.

In the best case, inhaling a small amount of carbon monoxide for several weeks can cause dizziness, headaches, nausea, vomiting, and fainting.</p

In the worst case, carbon monoxide poisoning can lead to death. The heat exchanger in your furnace is a good place to start when looking for the source of the carbon monoxide leak.


It is imperative that the heat exchanger is thoroughly inspected for safe operation during routine maintenance checks.


Some possible signs of a carbon monoxide leak include:

  • Decrease in your hot water supply.
  • Malfunctioning furnace.
  • A burning odor.
  • Increased condensation on windows.

If you notice any of the above in your home, have your furnace inspected right away by a professional who is familiar with carbon monoxide safety.

It May Just be Old


Another common reason for replacing an HVAC system is that the system has simply reached the point where it is too old to continue running efficiently. Most central heating and cooling systems can last anywhere between 10 and 15 years.

That said, after 10-12 years of using the same HVAC system, you are far more likely to deal with higher energy bills, humidity problems (often associated with old ductwork), and needing repairs more and more frequently. Rather than waiting for your 12+-year-old HVAC system to break down, or paying for repairs, again and again, you might consider replacing it.

The initial cost of a new unit ($6,000-$8,500 to install the unit alone, and $9,000-$12,000 to replace the unit and ducts) may seem steep, but it may not be far off from the total cost of repairs and energy expenses you’re already paying because of your old system.

The Blower Motor or Compressor May be Burned Out

Either of these two components can, theoretically, be replaced if they burn out. The cost of the replacement part and labor, however, is high enough that a broken compressor or blower motor is a reason to replace your HVAC unit. Some possible causes of compressor burnout include:


  • The compressor short cycling.
  • Dirty coils or damaged refrigerant lines restricting flow to the compressor.
  • Loss of oil, leading to a lack of lubrication for essential parts.
  • Poor HVAC maintenance.
  • A lightning strike (in this unlikely case, your insurance may offer to pay for the replacement).

Your issue may be with the blower motor if you notice any of the following:

  • Your unit overheating.
  • A cracked or broken belt.
  • Strange sounds like scraping and grinding, or a high-pitched squealing, coming from your unit.

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