Our Blog

Our Blog

Common Summer HVAC Mistakes to Avoid

May 28, 2020

Summer weather is finally upon us, and we know that 2020 won’t be like every other year. Air conditioners play a vital role here in Minnesota and keeping them running properly will be even more important this time around. To help, we gathered a list of common summer HVAC mistakes to avoid as you keep your home feeling cool and cozy.


Neglecting Regular Maintenance

Regular HVAC maintenance helps prevent inconvenient breakdowns that leave you without cool, comfortable air and with an expensive repair to get it back. Avoid these mistakes to help keep your system running smoothly all season long.



  • Not scheduling preventative maintenance. Don’t wait until you need an HVAC professional to call one. Have a regular preventative maintenance check early on to promote optimal performance throughout the summer.
  • Running a system with dirty ducts. Dirt, dust, pet hair, and other harmful particles settle into your ductwork over time and get blown into the air you and your family breathe. Left long enough, they can also clog the system, forcing it to work harder and hiking up your utility bills as a result. Annual duct cleaning is vital to the health and efficiency of your HVAC system, as well as indoor air quality.
  • Not keeping a clean filter. Just like ductwork, dirty or clogged air filters cause added stress on your HVAC system and decreased air quality. Plan to change your air filter (or clean if re-usable) monthly.


Having an Oversized System

Bigger isn’t always better when it comes to HVAC. Proper air conditioning will circulate cool air and remove humidity simultaneously and evenly – if the unit is too big, it will cool the home quickly without removing enough moisture from the air. As a result, you won’t feel comfortably cool and may turn the thermostat even lower, working the system harder and increasing energy use.


If your A/C isn’t cooling the home how you feel it should, consult your local HVAC experts about possibly upgrading to a right-sized system.


Closing Unused Air Vents

Some homeowners worry about cooling rooms that aren’t used on a daily basis. However, as mentioned above, properly sized systems are designed to evenly distribute cool air to the entire home. While it may seem logical to close unused vents to focus on cooling high-traffic areas, closing unused air vents decreases system efficiency and increases its workload.


Improper Thermostat Management

Altering the thermostat setting can be a touchy subject in the home, and doing so can impact the efficiency and health of your system. Remember to avoid these common mistakes.

  • Don’t crank the thermostat. You may be tempted to turn the temp extra-low to cool the home quickly, but this method actually decreases efficiency and adds stress onto the system. Be patient. Set the temperature to a comfortable level and let it run at its optimal rate.
  • Don’t pay to keep an empty house cool. No need to use extra energy to keep the house comfy if no one’s home. Turn the thermostat up when you’re gone for work or out of town, and turn it back down when you return.
  • But don’t turn the system off. Turning the system completely off forces it to work harder to cool the home when it’s fired back up. Unless you’re leaving for an extended trip, keep the A/C running at a higher temperature.


Consider Installing a Programmable Thermostat

Programmable thermostats let you customize and set temperature and humidity settings for multiple days, eliminating the need to manually monitor them throughout the day. Contact us to learn more about optimizing your summertime cooling performance and schedule with a new smart thermostat.


Crowding/Obstructing the Outdoor Unit

Outdoor units need to easily draw in air to operate efficiently. Clear any clutter and obstructions within two to three feet of the unit and be sure to keep it clean of grass clippings, dirt, and other debris throughout the summer.

Not Properly Sealing the Home

It’s a pretty simple concept: Keep cool air from escaping and heat from entering the home. Be mindful of these simple mistakes that impact your home’s cooling comfort and costs.


  • Neglecting leaks and drafts. Inspect windows, doors, and exterior walls and seal or caulk any small cracks or gaps that could let cool air out and warm air in.
  • Leaving windows unlocked and uncovered. Even shut windows can have small leaks, so lock them to ensure a tight seal. During the day, use curtains and shades to block direct rays of sunlight from heating your home.


Not Managing Indoor Humidity

Humidity plays a crucial role when it comes to home comfort and air quality. While HVAC systems pull moisture from the air, there are many things you can do to help reduce humidity in your home, such as taking cold(er) showers, using exhaust fans, and installing a dehumidifier to work in conjunction with your air conditioner.


Minnesota summers provide amazing opportunities to get outside and enjoy nature’s beauty, but we all know the importance of having a cool, comfortable home to relax in. Keep these common summer HVAC mistakes in mind to help avoid any issues with your system this cooling season.


As your residential HVAC experts, WestAIR is proud to reliably serve all your heating and cooling needs. Contact us today to schedule service and learn more.

Share by: