$49 / month O.A.C Including Install
$49 / month O.A.C Including Install

Is My Air Conditioner Working?

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Is My Air Conditioner Working?

Posted On: June 11, 2024

Is My Air Conditioner Working?

To determine if your air conditioner is working properly, you can follow these steps:


1. Check the Thermostat:

  • Ensure that the thermostat is set to "cool" mode.
  • Make sure the temperature setting is lower than the current room temperature.
  • Check if the thermostat display is functioning and shows the correct settings.

2. Inspect the Airflow:

  • Check the vents for proper airflow. If the air is not cool or the airflow is weak, there may be an issue.
  • Make sure the vents are not obstructed by furniture or other objects.

3. Examine the Air Filter:

  • A dirty or clogged air filter can impede airflow and reduce cooling efficiency. Replace the filter if it’s dirty.

4. Listen for the AC Unit:

  • Go outside and listen to the outdoor unit (compressor). It should be running smoothly without any unusual noises.
  • Inside, the fan should be running, and you should hear a consistent hum from the unit.

5. Check for Ice or Water:

  • Look for ice buildup on the refrigerant lines or the evaporator coil inside the unit. Ice formation can indicate a problem with the refrigerant levels or airflow.
  • Check for water leakage around the indoor unit, which might indicate a clogged drain line.

6. Feel the Air from the Unit:

  • If the air coming from the vents is not cool, there might be an issue with the refrigerant or the compressor.

7. Check the Circuit Breaker:

  • Ensure that the circuit breaker for the air conditioner is not tripped. Reset it if necessary.

8. Inspect for Error Codes:

  • Some modern thermostats or AC units display error codes when there’s an issue. Refer to the user manual for troubleshooting based on these codes.

9. Energy Bills:

  • A sudden increase in your energy bill can be a sign that your AC is working harder than it should, indicating a potential issue.

When to Call a Professional:

If you’ve checked all these items and your air conditioner still isn’t working properly, it’s time to call a professional HVAC technician. They can diagnose and fix issues related to refrigerant levels, electrical components, and other complex problems.


Would you like more detailed information on any of these steps?



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See What Our Customers Are Saying:

by Eric Y, Greenbank on Twintech Heating and Cooling

Dave was great in helping me get the proper units for my property, as well as getting them installed. The installers arrived when they said they would, and completed the project on time, and professionally. If I needed another furnace, I would use Dave again.

by Ed B., Whitby on Twintech Heating and Cooling

I have known Greg and Grant Dainty for many years and have used their company for my house and business. I recommended them also for my parents and sister and they all have been very satisfied with the quality of work for a reasonable price. I just recently had them install a new HVAC system in an older house and was very pleased with their work. Craig in Pickering. After meeting with various heating and air conditioning contractors I was referred to Twin Tech Heating and Cooling through a family member. Greg and Grant arrived at my home and provided me with an estimate and a plan as to how they were going to remove and replace my furnace and air conditioner. On the day of install Greg and Grant arrived at my home on time and were very professional and extremely courteous as to any questions or concerns that I had. The removal and install was truly professional and the attention to detail was exactly what I was looking for. I’ve seen many installs from other contractors and I couldn’t be any happier to have had such a clean looking install. The sheet metal work, ducting and venting all look fantastic. Upon completion Greg and Grant left me feeling extremely happy and very fortunate of a job well done. Thanks again Twin Tech!!

by Floreene in Whitby on Twintech Heating and Cooling

My old furnace had finally broken down for the last time when contacted twintech to have a new furnace installed…They were prompt, knowledgeable and very reasonably priced. They did such a great job i tell all my friends and family about this company.

by Damien McIsaac. Ajax on Twintech Heating and Cooling

To whom it may concern, I recently had TwinTech (Greg and Grant Dainty) replace my furnace and service both my gas fireplaces and air conditioning unit. They were professional, courteous and very fair in their pricing. I would gladly recommend TwinTech to anyone needing work done. I can be contacted at 905-626-XXXX.

by Blair N. - Toronto on Twintech Heating and Cooling

My Fiancé and I have relied on Twintech Heating and Cooling now for the better part of the last 10 years. In that time, Greg has installed a furnace, an air conditioner, and a heat-pump at our residence in Toronto. In each instance Greg and his team were a pleasure to deal with. They were courteous and professional throughout the whole process and the quality of their work is first rate. Our experiences have always been extremely positive and we have referred his services numerous times to our friends and family. Without hesitation, I would recommend Greg and TwinTech Heating and Cooling to anyone looking to service or replace their existing heat/AC equipment

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See What Our Customers Are Saying:

by Aaron on Twintech Heating and Cooling

We are very happy to recommend this company to everyone. Our furnace broke down on Sunday morning. We phoned them and before noon Grant the owner showed up. He worked on the furnace for about a hour not wanting to give up to fix the problem. The furnace was 17 years old. I was the one talking about replacing it. End result was the next day it was all done. On the Sunday Bob came over with heaters to warm up the house. We decided to replace the water heater at the same time. Thanks Grant for the excellent work. Thumbs up.

by Linda on Twintech Heating and Cooling

Right on time. Explained how to work the HRV in a different way so the house would not be so dry. Changed my whole house water filter for me as well. Friendly, helpful, caring service!

by Robert Rogers on Twintech Heating and Cooling

Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.

by Robert Mizuno on Twintech Heating and Cooling

We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!

by Ruth on Twintech Heating and Cooling

TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!

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