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Is My AC Units Airflow Obstructed?
Posted On: May 24, 2024
Determining if your AC unit's airflow is obstructed is crucial for ensuring it operates efficiently. Here are some steps and signs to help you identify any airflow obstructions:
Steps to Check for Obstructed Airflow
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Inspect Air Filters
- Visual Inspection: Check the air filter for dust and debris buildup. A clogged filter is a common cause of reduced airflow.
- Replace or Clean: Replace disposable filters or clean reusable ones if they appear dirty.
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Check Vents and Registers
- Open and Unobstructed: Ensure all supply and return vents are open and free from obstructions such as furniture, drapes, or rugs.
- Airflow Test: Place your hand near the vents to feel if air is flowing freely. Weak airflow may indicate a blockage.
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Examine the Ductwork
- Visual Inspection: Look for visible signs of damage or disconnections in the ductwork.
- Seal Leaks: Seal any leaks or gaps with duct tape or mastic sealant.
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Inspect the Outdoor Unit
- Clear Debris: Ensure the area around the outdoor unit is clear of debris, plants, and any other obstructions.
- Check Fins: Inspect the condenser fins for dirt or damage and clean them gently with a soft brush if needed.
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Monitor System Performance
- Temperature Differential: Measure the temperature difference between the air entering the return vent and the air exiting the supply vents. A significant drop in temperature can indicate a problem.
- Listen for Noises: Unusual noises from the blower fan or ducts can indicate obstructions or mechanical issues.
Signs of Obstructed Airflow
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Reduced Cooling Efficiency
- If your AC is running but not cooling your home effectively, obstructed airflow may be the cause.
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Increased Energy Bills
- Higher-than-normal energy bills can indicate your AC is working harder than necessary due to restricted airflow.
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Hot and Cold Spots
- Inconsistent temperatures or noticeable hot and cold spots in different rooms suggest uneven airflow distribution.
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Frost Build-Up on Evaporator Coils
- Ice on the evaporator coils can be a sign of insufficient airflow, causing the coils to become too cold and freeze.
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Weak Airflow from Vents
- If you notice that the airflow from your vents is weaker than usual, it could indicate a blockage somewhere in the system.
What to Do If You Find Obstructions
- Replace or Clean Filters: Regularly replace or clean air filters to prevent clogs.
- Clear Vents and Registers: Ensure all vents and registers are open and unobstructed.
- Clean Ductwork: Have your ducts professionally cleaned if you suspect a significant buildup of dust or debris.
- Clear Outdoor Unit Area: Regularly clear the area around your outdoor unit to maintain proper airflow.
- Professional Inspection: If you cannot identify the source of the obstruction or if the problem persists, contact a professional HVAC technician for a thorough inspection and service.
By performing these checks and addressing any issues, you can ensure that your AC unit operates efficiently, providing optimal cooling performance and energy efficiency.
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See What Our Customers Are Saying:
Jul 28, 2022
On coldest night of the year our furnace quit. At 8:40 in the morning Greg arrived and gave us a diagnosis and a recommendation. By 2:30 we had a new furnace and were warm again. Great company. Great customer service. Good reasonable price.
Peter, Pickering
Jul 3, 2022
Twin tech team was very efficient and prompt. They provided a quote within hours of request and got the job done on time. No disruption to home function. We would highly recommend this team. Job well done.
Jul 3, 2022
Our furnace bit the dust, and Twintech came out to troubleshoot and diagnose the problem within a couple of hours. Mitch was super helpful, patient, and answered all of our questions. When we decided to get the furnace replaced, the crew was over first thing the next morning and did a fantastic job. Not only did they complete the job in a few hours, but they cleaned up and respected our house as they went, and answered all of our follow-up questions. I've used Twintech for our HVAC needs in the past and will continue to do so. I'd recommend them to anyone, and it feels good to support a local, family-owned business.
Jul 3, 2022
Dave and the Twintech team were fabulous from day 1 and helped us through the process to identifying a new furnace and AC unit. This was our first time through this process and Dave did a thorough job explaining all the components and was very patience answering all our questions. Dave provided great insights and fair pricing.
The Twintech team did an awesome installation. Very clean and efficient. I would highly recommended their service.
Jul 3, 2022
We had a new Amana furnace installed by Twintech and we were very pleased with the installation. It is nice to have a warm house again.
Jul 3, 2022
Excellent job. Excellent service. Competitive price. Its rare to find a company with the knowledge and professional results we have experienced with Twintech. The clean and neat installation with attention to detail and drop sheers to respect our property is a clear indication of Twintechs high level of integrity. The 1-1/2 gas line upgrade they did for our pool 3 years ago was awesome. Can't say enough. Thank-you Twintech.
Jul 3, 2022
Twitch did a great job with the installation of our new furnace. I really appreciated their honesty and I could trust what they were telling me. Another company tried to suggest significantly more work at a greater cost claiming it was necessary to meet current building code. Twintech is very fair. All staff I meet were friendly, polite and trustworthy. I would recommend Twitch for a furnace.
Jul 3, 2022
This is a professional team that's easy to deal with. I would strongly recommend them
Jul 3, 2022
Very professional firm from start to finish!
They removed the old oil tank and furnace. They installed air conditioning and a new propane furnace.
Professional installation, on time and no mess.
Very pleased with their work and would highly recommend the company. Our house is three stories so they spent the time to do all the calculations to make sure we would have great performance on each floor.
Thank you again!
Jul 3, 2022
Upon a routine yearly maintenance, it was discovered there was a leak in the heat exchanger and a I needed a new furnace. I know nothing about these things and was completely stressed out. The company I had the maintenance plan with quoted me a huge number to rent a furnace, I just wanted to cry. Then I spoke to Dave at Twintech. He was so knowledgeable and calming, provided me a fair quote and within a few days I had an amazing crew show up to my house and install my new energy efficient furnace! I have already recommended these wonderful people at Twintech to a good friend of mine. Thank you Twintech!!
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