Air Conditioning Tips & Tricks: Tips for having an Air Conditioner System

Jan 21, 2012 | Blog | 29 comments
JCJ Mechanical Air Conditioning provides, Central Air Conditioning, Ductless Air Conditioning, Window Unit Air Conditioning contractor offering sales, service and installations of residential and commercial air conditioning units, located in Toronto and serving Brampton, Mississauga the GTA.
In this page we will give everyone a few simple tips and steps that can end up saving you a lot of money when it comes to running your air conditioner. A little planning before installing your air conditioner will save you energy and money.
Try setting your thermostat between 72°F and 78°F. Each degree setting below 78°F will increase your energy consumption by approximately 8%. As you can see, that can add up to a lot of money over a year.
Inspect and clean both the indoor and outdoor AC/Heating coils. The indoor coil in your air conditioner acts as a magnet for dust because it is constantly wetted during the cooling season. Dirt build-up on the indoor coil is the single most common cause of poor efficiency. The outdoor coil must also be checked periodically for dirt build-up and cleaned if necessary.
Check the refrigerant charge. The circulating fluid in your air conditioner is a special refrigerant gas that is put in when the system is installed. If the system is overcharged or undercharged with refrigerant, it will not work properly. You may need a service contractor to check the fluid and adjust it appropriately.
Use bath and kitchen fans sparsely when you are running the air conditioning system.
Reduce the cooling load by using cost-effective conservation measures. For example, effectively shade east and west windows. When possible, delay heat-generating activities, such as dishwashing or baking, until the evening on hot days.
Try to not use a dehumidifier at the same time your air conditioner is operating. The dehumidifier will increase the cooling load and force the air conditioner to work harder, which in turn increases your utility bill.
Over most of the cooling season, keep the house closed tight during the day. Don’t let in unwanted heat and humidity. If practical, ventilate at night either naturally or with fans.

Room Air Conditioning Units

The unit should be level when installed, so that the inside drainage system and other mechanisms operate efficiently. If possible, install the unit in a shaded spot on your home’s north or east side. Direct sunshine on the unit’s outdoor heat exchanger decreases efficiency by as much as 10%. You can plant trees and shrubs to shade the air conditioner, but do not block the airflow.
Set the fan speed on high, except on very humid days. When humidity is high, set the fan speed on low for more comfort. The low speed on humid days will cool your home better and will remove more moisture from the air because of slower air movement through the cooling equipment. Consider using an interior fan in conjunction with your window air conditioner to spread the cooled air more effectively through your home without greatly increasing electricity use.
Set your air conditioner’s thermostat as high as comfortably possible in the summer. The less difference between the indoor and outdoor temperatures, the lower your overall cooling bill will be. And don’t set your thermostat at a colder setting than normal when you turn on your air conditioner. It will not cool your home any faster and could result in excessive cooling and, therefore, unnecessary expense.
Don’t place lamps or televisions near your air-conditioner’s thermostat. The thermostat senses heat from these appliances, which can cause the air conditioner to run longer than necessary.
Proper maintenance of your air conditioner will also save energy. Be sure to do the following:

  1. At the start of each cooling season, inspect the seal between the air conditioner and the window frame to ensure it makes contact with the unit’s metal case. Moisture can damage this seal, allowing cool air to escape from your house.
  2. Check your unit’s air filter once a month and clean or replace filters as necessary. Keeping the filter clean can lower your air conditioner’s energy consumption by 5% to 15%.
  3. Occasionally pass a stiff wire through the unit’s drain channels. Clogged drain channels prevent a unit from reducing humidity, and the resulting excess moisture may discolor walls or carpet.

*In the winter, either cover your room air conditioner or remove and store it.
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  1. Guy Gardener

    Putting something hot or cold over the thermostat is a bad idea anyway you look at it. If you put your TV over it, then in the winter, the heater would never turn on and you would be freezing. Be more careful when decorating your home than to just haphazardly place appliances everywhere.

  2. Caleb Hart

    I think I should try to conserve energy with my air conditioner. It’s been acting up lately and using a lot of energy. There are a lot of things that I can try to improve my air conditioner. Maybe I should talk to a professional though.

  3. Alex Jennings

    I’ve never though of using a room air conditioning unit; although, I think they could drastically reduce our energy bill. In my old apartment, they installed our television close to the thermostat, and the thermostat falsely thought that the room was too warm, so it was constantly trying to cool our place. That’s not always a problem that you think about, so I’m glad that you mentioned it.
    Alex Jennings |

  4. DoloresB

    I think as the summer is approaching it’s important to make sure the a/c unit is working properly. It’s also good idea to look at tips on how to use the unit during the summer to maximize the coolness factor, but also keep the bill down. Having good maintenance usually does a lot to help keep down the bill.

  5. Rachelle Reeves

    It gets really hot where I live during the summer, so air conditioning is very important at my house. I want to make sure that the air conditioning works well all summer long. Thanks for the tips, I’ll make sure to check the filters every month and check the drain channels.

  6. Brandon Roberts

    This was such a great help to me! I was very curious as to what I could be doing to save a little money during the winter time. And I think that I may be using my unit a little to much around then. So thanks a ton for making me aware of this. I’m sure it’s going to help me save a ton.

  7. Julie Myers

    It is so helpful to learn more about using your air conditioning effectively. I have been noticing that my bills are really high for cooling during the summer, so it would be nice to lower those. I think it would be really good to set the thermostat at a steady level, because then I wouldn’t be changing it all the time. I will also try to be sure that we don’t have open windows or doors very often, because then that will let all the cool air outside!

  8. Caleb Hart

    I really need to get my air conditioner looked at as well. We’re going into August, and I’m sweating to death in my house. Hopefully I can find someone to come take a look at my air unit. It is not working properly and it’s driving me insane!

  9. Ethel

    I had no idea that the energy consumption jumps up 8% every degree under 78! That is a lot of unnecessarily wasted energy! Remembering to turn off the kitchen fan when the A/C is on will hopefully help me cut costs. Thanks for the great info!

  10. Rhys Rawson

    Thanks for sharing these tips on air conditioning maintenance. I’ll be sure to start inspecting the seal between the ac unit and the window frame at the start of each cooling season. Do you have any other advice for me?

  11. Meg Lund

    I didn’t know that moisture could damage the seal on my air conditioner! You talk about how inspecting this seal before each cooling season will ensure that you are properly cooling your home and not wasting money. Additionally, I think that seasonal inspection of your air conditioning unit will help you to be on top of its maintenance needs and always keep it in good condition. Thank you for sharing!

  12. Brandon Roberts

    I am so glad that I was able to find this! My wife and I just got this new A/C, and we really want to make sure we are going what we can to really use it. And the tips you gave were super helpful and informational to me, so I just wanted to take some time and thank you for posting this.

  13. Olivia Sherwin

    These are some great pieces of advice, and I like your tip to check the air filter once a month. Keeping the air filters clean is a fairly simple task, and it can go a long way in increasing the productivity of your air conditioner. Do you suggest a monthly check on air filters even during the seasons the AC isn’t running?

  14. DoloresB

    I didn’t know it was bad to use the dehumidifier and the a/c at the same time. It’s not good to make the a/c system work harder than it really needs to. I’ll have to pay more attention and make sure that I’m not having them on at the same time.

  15. Anita Mas

    Each degree below 78 degrees can really make a difference in you energy consumption it looks like. I guess it’s a good thing that I don’t like it really cold in the house during the summer. I had a roommate once that would put the temperature at about 68 degrees. It was kind of intense.

  16. toto

    thanks for the article..tremendous review.great worked! now i deeply understand about central air conditioner.i try to figure out lately until i find your blog.god bless u..i will bookmark your site. visit me at

  17. Steven Harrison

    These are great air-conditioning tips all around. I have indeed seen a few people use dehumidifiers while they have the air-conditioner running. I hadn’t heard that tip before, but now I know they were just letting money fly out the window.

  18. Raylin Sutter

    It is so important to take care of your air conditioning and to apply the tips that people give you. This past summer it was so hot that I kept it blasting 24/7. A friend told me that I shouldn’t and encouraged me to turn it off when I wasn’t home. I didn’t listen to him and I ended up with it breaking down.

  19. June Robinson

    I really appreciate this information on air conditioning tips and tricks. We love our air conditioning unit, and we want to do whatever we can to help it last as long as possible. I have never thought of passing a stiff wire through the drain channels to help it not clog up, but I think it’s a great idea. Thanks for the information!

  20. Avery Grey

    My husband and I live in a very humid part of the country and we are always looking for different ways to run our air conditioning during those really humid days. I always thought that it was better to set the fan on high during humid days, I am glad to know that I should do something different! Hopefully we will be able to run our system more efficiently, thanks for sharing!

  21. Eliza Cranston

    Thank you for the advice on keeping the air conditioning running efficiently! That’s amazing that each degree blow 78 increases energy by 8%! I’ll try to keep it a bit higher than I have been. How often would you recommend cleaning the filter ?

  22. Zach Potter

    Checking the seal between the conditioner is actually vital to an air conditioning units usability. I will be sure to remember all of these and go through our unit to see if there is anything wrong. Thanks for the informational article and tips.

  23. Olivia Sherwin

    These are some great tips, and I appreciate your advice to set your thermostat between seventy-two and seventy-eight to save money on energy. I didn’t realize that each degree would increase consumption by so much! I usually have mine set to seventy, so I’ll definitely look into increasing that a few degrees to save money. Thanks for the great post!

  24. Phillius Thomas

    I didn’t know that dehumidifiers and air conditioners didn’t play nicely together. If I had to choose one though, I would probably pick the AC more often than not. Having cold air is more important to me than how dry the air is.

  25. Benjaminclow

    Comms Room air conditioning
    Love it! I like this topic.This site has lots of advantage.I found many interesting things from this site. It helps me in many ways.Thanks for posting this again.

  26. Jack Palmer

    I appreciate you advice on keeping our thermostat between 72 and 78 degrees. This is the first time my wife and I need to worry about heating in our apartment so we’ve been going back and forth the temperature. I think we will set it to 72 and see how that feels for us. I’ll have to talk to the heating contractors next time they come to get more info. Thanks for sharing!

  27. Lillian Schaeffer

    This is some great information, and I appreciate your suggestion to set your thermostat between seventy-two and seventy-eight degrees. I didn’t realize that every degree above seventy-eight increased your energy consumption by so much! I’ll definitely look into raising my thermostat a little bit so I can save on air conditioning expenses. Thanks for the great post!


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