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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:
May 9, 2018
I had cold and hot spots all over my 70 yr old home. My furnace is quite new and Greg optimized the fan and furnace. The original installer just took it out of the box with factory settings and installed it- basically running at 50% of capacity. Greg also routed heat into my laundry room, yeah - so now I can renovate laundry room - thanks Greg. He is honest, professional and knowledgeable. I will be calling him back in the spring to optimize my AC as well.
May 8, 2018
Wonderful from beginning to end. I tend to fret and worry about home improvements but the excellent team at TwinTech put my mind as ease. They listen, they are patient and best of all ... the work they did is amazing! I chose the Goodman 80K BTU 2 stage furnace and the matching Goodman air conditioner. Greg, Grant and Poitr "Peter" arrived on time, took great care, explained everything to me and they answered all of my questions. They carefully adjusted the factory settings to optimize the furnace for my house and they also checked the duct work in the basement. Dave, the Sales Manager, came by to say "hello" and to see if I was happy. YES, I am happy with the work! The furnace is very quiet. I have it running on low just to circulate the air in the house and it's so much quieter than my old furnace. When I need new duct work for an upcoming basement renovation TwinTech will be my first choice. I highly recommend TwinTech. PS. They were even nice to my dogs.
Apr 21, 2018
Greg was prompt on the scheduled day of installation and the work was done well within the time estimated beforehand. Installation was neat and the equipment and scope of work was as specified in the quote. One item I must point out is that we were faced with a "No Heat" situation the day before the scheduled installation and Greg came out to address it free of charge. Not only that, but he also corrected an installation fault with our smart thermostat that was not part of the original job, again free of charge.
Mar 16, 2018
Greg came by to do a routine furnace checkup. He was very knowledgeable and professional, letting me know what's being checked/adjusted and giving me tips to ensure everything runs smooth. Very honest and upfront about what's working fine vs. what may need to be fixed/replaced. He didn't attempt to up sell anything that wasn't necessary. I'm glad to have finally found someone I can trust and rely on for all my HVAC needs - furnace, A/C, and hot water tank.
Mar 4, 2018
I'm very happy with the work that was done. Everyone from salesperson to the installers were friendly and professional. They were on time and cleaned up the job site after it was installed. They also answered all my follow up questions promptly. I wouldn't hesitate to work with them or recommend them again.
Feb 28, 2018
Thanks to the team at Twin Tech for a great job installing my new heat pump/ac unit. The guys were very polite and professional. When they left you would never have known they had been there except for the new Mitsubishi unit on the wall!! would highly recommend the Twin Tech team.
Feb 28, 2018
Installed professionally, no delays, no rework needed. Very reliable contractor and sales person. Also installed BBQ gas line and some duct work.
Feb 19, 2018
Greg and Grant are friendly, reliable, and knowledgeable HVAC professionals. The twins, Dave and the entire team provided efficient top quality service. Our family plns to use Twintech for all of our future HVAC needs.
Feb 10, 2018
Very impressed with this company. They show up on time , kept my place clean and after they left it looks like they were never there. Very professional team. Those people know what they doing . Their installation was on the highest standard. They are very knowledgeable especially they're worker Peter. I strongly recommend this company to everybody. After the installation I receive the call making sure I'm satisfied with their products and their job. Bravo!!!
Feb 8, 2018
Greg and his brother were referred to us by a friend. They arrived when they said they would, did an exceptional job and left the place as tidy or tidier then they found it. Their professionalism is only surpassed by their kind and friendly demeanor. Even after several calls to help me with my high tech thermostat I feel that I could always call with any concern (No one responds to my texts as quickly as Greg) and have a friendly helpful response. I found out their grandfather started the company and now as a 3rd generation company, they are doing their grandfather proud. I would highly recommend Twintech over any other hvac company out there.
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