Don't leave windows open if you're using a/c.

Are you making air conditioning mistakes?

Tips for keeping your home cool.

Is your air conditioner being affected by home owner mistakes?

With summer's heat just around the corner, ensuring our homes remain cool and comfortable becomes a top priority. Air conditioners are a blessing during these hot months, but they require proper care and attention to function optimally. Unfortunately, many homeowners unknowingly make mistakes that can hamper their air conditioner's performance, increase energy consumption, and even lead to costly repairs. 


Here are a few mistakes you could be making:

  • Neglecting Regular Maintenance:
    One of the most common mistakes people make is neglecting regular maintenance of their air conditioning units. Routine maintenance, such as cleaning or replacing filters, checking refrigerant levels, and inspecting the system for any signs of wear and tear, is essential to keep your air conditioner in top shape. Failing to do so can result in reduced efficiency, higher energy bills, and a shorter lifespan for your unit.
    Tip: Schedule annual maintenance appointments with a professional HVAC technician to ensure your air conditioner receives the care it needs.
  • Setting the Temperature Too Low:
    When the temperature inside your home rises, it's tempting to crank up the air conditioner to the lowest possible setting. However, this is an inefficient and wasteful practice. Setting the temperature too low not only puts unnecessary strain on the unit but also leads to excessive energy consumption. Additionally, rapid temperature changes can result in discomfort and temperature imbalances in different areas of your home.
    Tip: Set your thermostat to a moderate and comfortable temperature, typically around 22-24 degrees Celsius, and use ceiling fans or portable fans to enhance the cooling effect.
  • Leaving Windows Open:
    If you're using the air conditioner, you need to keep the doors and windows of the room closed to prevent the cool air from escaping. If you leave these open, the cool air will leave the home, the room won't reach the desired temperature, and your air conditioning will be working much harder than necessary.
    Tip: Ensure all windows and doors remain closed when the a/c is running for optimal cooling performance.
  • Ignoring Energy-Saving Features:
    Modern air conditioners come equipped with various energy-saving features designed to maximize efficiency and reduce electricity consumption. Unfortunately, many homeowners fail to take advantage of these features, missing out on potential energy and cost savings.
    Tip: Explore the settings on your air conditioner, such as programmable thermostats, energy-saving modes, or timers, and make use of them to minimize energy usage during specific times or when you're away from home.
  • Improperly Sized Units:
    Choosing the right-sized air conditioner for your space is crucial. A unit that is too small will struggle to cool your home adequately, leading to increased energy consumption and potential breakdowns. On the other hand, an oversized unit may cycle on and off frequently, resulting in inefficient cooling and excess humidity.
    Tip: Consult with a professional HVAC technician to determine the appropriate size of the air conditioner required for your specific space and cooling needs.


Avoiding these common air conditioner mistakes can help you maintain a comfortable indoor environment while maximizing energy efficiency and extending the lifespan of your unit. Remember to prioritize regular maintenance, set your thermostat appropriately, keep air vents unobstructed, utilize energy-saving features, and choose the right-sized air conditioner. By following these simple guidelines, you can ensure that your air conditioning system runs smoothly, keeping you cool and content throughout the hot summer months.


Give Millenium a call to ensure your system is running efficiently.


Categories: tips

Author: Millenium Mechanical

Heating, Cooling, Plumbing and Refrigeration Millenium Mechanical is your one-stop-shop for Residential and Commercial Plumbing, Heating, Air Conditioning and all related services. We offer maintenance packages, as well.