How Will I Know When To Replace My Central Air Conditioning Unit?

Typically, there are 9 tell-tale signs that it’s time to replace your central air conditioning unit:

  1. The AC Won’t Cool Your Home: Similar to furnaces, when a major component of your central air conditioning unit fails, it may struggle to cool your home effectively, signalling it’s time for a replacement.
  2. Uneven Cooling in Rooms: As central AC units age, they may have difficulty maintaining consistent temperature distribution throughout your home. This can lead to certain rooms feeling warmer or cooler than others. Upgrading to a modulating or two-stage AC unit can improve even cooling and reduce noise levels.
  3. Frequent Repairs: Constant repairs are a clear sign that your central air conditioning unit is nearing the end of its lifespan. Rather than continuing to invest in repairs, consider replacing the unit for better reliability and efficiency.
  4. Humidity Problems in Summer: If your central AC struggles to dehumidify the air in your home during the summer months, it may be due to an outdated blower motor. Upgrading to a variable-speed blower motor can help improve humidity control and overall comfort.
  5. Rising Energy Bills: Increased energy consumption leading to higher bills, regardless of the weather, indicates declining efficiency in your central air conditioning unit. Look for models with ECM motors that adjust airflow speed for improved efficiency and comfort.
  6. Noisy Operation: Unusual noises like hums, rattles, or buzzes coming from your central AC unit could signify internal issues. Don’t mistake these for noises in your ductwork; they may indicate the need for a replacement.
  7. Cracked Evaporator Coil: A cracked evaporator coil can lead to refrigerant leaks and diminished cooling capacity. Ensure the diagnosis is accurate before considering a replacement.
  8. Excessive Dirt or Soot Buildup: If you notice an accumulation of dust, dirt, soot, or rust particles in your central AC unit’s vents or on the components, it could be a sign of age-related wear and tear.
  9. Age of the System: Central air conditioning units typically last between 15 to 20 years with proper maintenance. If your unit is reaching or exceeding this age range, it’s worth considering a replacement to improve comfort and energy savings.

If you’ve observed any of these signs with your central air conditioning unit, it’s advisable to consult with an Energy Clean Home Comfort Specialist promptly. Addressing minor issues early can prevent them from escalating into major problems later.

Share This Post


Scott Tizzard

President & Founder

Since 2013 I have been helping Canadians by providing the best in class heating and cooling solutions for their homes and businesses. I am hands on with my business and take pride in our work and craftsmanship. We look forward to taking care of your needs. Feel free to contact me directly.