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HVAC Services Alpharetta GA

Neese Heating & Air Conditioning, Inc.

Heating & Air Conditioning Services in Alpharetta, GA

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March 12, 2026

AC Not Working? Why Your AC Is Blowing Cold Air But Not Cooling Your Home

HVAC Services Alpharetta GA

When the Georgia heat hits Alpharetta, homeowners rely heavily on their air conditioning systems to stay comfortable. So it can be frustrating when your AC is not working properly, even though it seems like the system is running. Many homeowners notice their AC blowing cold air but not cooling the house, which can leave rooms feeling warm and uncomfortable.

If you’re experiencing this problem, there may be several underlying causes. Understanding what might be happening can help you know when it’s time to call the professionals at Neese Heating, AC & Plumbing in Alpharetta, GA for expert repairs.

Dirty Air Filters Can Cause Your AC Not Working Properly

One of the most common reasons homeowners notice their AC blowing cold air but not cooling is a dirty or clogged air filter. Air filters are designed to trap dust, dirt, and allergens before they enter your HVAC system.

However, when the filter becomes too dirty, it can restrict airflow throughout the system. When airflow is reduced, your AC may still produce cold air, but it won’t circulate effectively through your home.

Signs of a clogged air filter include:

  • Weak airflow from vents
  • Uneven temperatures in different rooms
  • Higher energy bills
  • The AC running constantly

Replacing your air filter regularly can help prevent many cooling problems and keep your system running efficiently.

Thermostat Issues May Be Causing Cooling Problems

Another reason your AC is not working correctly could be related to your thermostat. If the thermostat is malfunctioning or incorrectly calibrated, it may not properly communicate with your air conditioning system.

Common thermostat issues include:

  • Incorrect settings
  • Dead batteries
  • Faulty sensors
  • Poor thermostat placement

For example, if the thermostat is located in an area that stays cooler than the rest of the home, it may signal the AC to shut off before the entire house reaches the desired temperature.

A professional HVAC technician can test and recalibrate your thermostat to ensure it is working properly.

Refrigerant Problems Can Reduce Cooling Performance

Your air conditioning system relies on refrigerant to remove heat from the air inside your home. If refrigerant levels are low or there is a leak in the system, your AC may be blowing cold air but not cooling your home effectively.

Signs of refrigerant issues include:

  • AC running longer than usual
  • Ice buildup on the indoor unit
  • Hissing or bubbling sounds
  • Warm spots in your home

Refrigerant problems should always be handled by a trained HVAC technician, as the system must be properly inspected, repaired, and recharged.

Frozen Evaporator Coils Can Block Airflow

Frozen evaporator coils are another reason your AC is not working as it should. When coils freeze, they restrict airflow and prevent the system from properly cooling your home.

Frozen coils are often caused by:

  • Dirty air filters
  • Poor airflow
  • Refrigerant leaks
  • Continuous system operation during extreme heat

If you notice ice forming on your indoor AC unit, it’s important to turn off the system and contact an HVAC professional right away.

Ductwork Issues May Prevent Your Home From Cooling

Even if your air conditioner is producing cold air, problems within your ductwork can prevent that air from reaching your living spaces. Damaged, disconnected, or leaking ducts can cause cooled air to escape before it ever reaches your rooms.

Common duct issues include:

  • Air leaks in the duct system
  • Blocked vents
  • Poor duct insulation
  • Improper duct design

When ductwork problems occur, homeowners may feel like their AC is not working, even though the system itself is operating.

Why Choose Neese Heating, AC & Plumbing in Alpharetta, GA?

When your AC is blowing cold air but not cooling, you need a trusted HVAC team to quickly diagnose and fix the problem. At Neese Heating, AC & Plumbing, we provide reliable air conditioning repair services for homeowners throughout Alpharetta and the surrounding areas.

Customers choose our team because we offer:

Experienced Local Technicians

Our technicians have extensive experience diagnosing all types of cooling problems. We understand the unique cooling demands that Georgia homeowners face during the hot summer months.

Accurate System Diagnostics

We take the time to thoroughly inspect your entire HVAC system to identify the true cause of your cooling problem. This ensures we recommend the most effective and long-lasting solution.

Honest Recommendations and Fair Pricing

At Neese Heating, AC & Plumbing, we believe in transparency and integrity. Our team provides clear explanations of the problem and offers honest repair recommendations without unnecessary upselling.

Fast and Reliable Service

We know how uncomfortable it can be when your AC is not working, especially during peak summer temperatures. Our team responds quickly to restore your comfort as soon as possible.

Schedule AC Repair in Alpharetta Today

If your AC is blowing cold air but not cooling your home, the problem may continue to worsen if it isn’t addressed quickly. A professional inspection can identify the root cause and prevent further damage to your system.

The experts at Neese Heating, AC & Plumbing in Alpharetta, GA are here to help. Our experienced technicians will diagnose the issue, provide reliable repairs, and ensure your air conditioner keeps your home comfortable all summer long.

Contact Neese Heating, AC & Plumbingtoday to schedule your AC repair service and get your cooling system back to working the way it should.

Filed Under: Articles Tagged With: AC Not Working, AC repair alpharetta ga, ac service alpharetta ga, air conditioning

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HVAC Services Alpharetta GA
Google Rating
4.9
Based on 2237 reviews
Neese Heating, AC and Plumbing Conditioning Inc.
Neese Heating, AC and Plumbing Conditioning Inc.
4.9
barbara kimball
17:37 07 Aug 26
Professional, courteous, knowledgeable. Jeremy Hall, my tech, is invaluable. He clearly explains his process, if there are any issues, how how to remedy them, and is clearly dedicated to doing the best job possible. I've used Neese-Jones for 14 years for their twice yearly maintenance and once to replace an AC unit and have been very happy with them.
Peggy Crowell
17:24 07 Aug 26
Mike Welborn
16:22 07 Aug 26
Outstanding work and workmanship. I was a contractor for 30 years and it took that long for me to find the best HVAC company anywhere around.
Ashley Koontz
16:00 06 Aug 26
Always do a great Cody was very knowledgeable and trustworthy. He explained everything thoroughly which I appreciated
Joe Chapple
22:41 05 Aug 26
These guys are the best
John Kuriger
19:21 05 Aug 26
Jiey was very professional and informative. He helped us very well and I would recommend him to anyone.
Jacqueline Malone
17:29 05 Aug 26
Very professional and friendly visit. Freddie arrived on time with a 20 minute courtesy call to remind me of his arrival. He was efficient and answered all of my questions. I’ve been a Neese customer for 24 years. I recommend them JM
MLee Lefkovits
17:21 05 Aug 26
Daniel was honest and efficient. He was at our house quickly when our AC went out. He is very knowledgeable and willing to explain why our unit failed. He gave us options to move forward.
Bert Godwin
12:06 05 Aug 26
Excellent job!
Reid Lummus
23:11 04 Aug 26
Love the staff at Neese! Freddi did an amazing job! Extremely courteous, knowledgeable and one time!
Susan Segat
21:51 04 Aug 26
Very fast response to my need to fix our basement AC. Repairs made and enjoying the AC. Thanks to the Neese team. Shout out to Jeff Burns for his expertise.
Heather Kozina
21:41 04 Aug 26
We greatly appreciate how easy this service team is to work with. They are polite and knowledgeable and professional.
Leah Zucker
21:07 04 Aug 26
Arie Kohn
20:37 04 Aug 26
Great to work with.Responsive and professional service are always there when you need them.Adding to the above - I just had my system reworked and added a new unit. Was not an easy job but was done with the most attention to detail. The two crews who worked on site and John who orchestrated it were very knowledgeable and pleasant. They all made sure to deliver the best installation.I definitely recommend the company to anyone who is looking for great service.
Elaine Pemberton
20:05 04 Aug 26
Very reliable company!! Great service! Technician very knowledgeable
Pam Shaheen
19:28 04 Aug 26
The service on our heating and air was professional and efficient. Plus the specialist was polite and friendly. I would recommend this company to anyone I know!
Nancy Brooks
18:57 04 Aug 26
Replaced upside a/c unit.
David Schwartz
18:38 04 Aug 26
They were very professional and installed new heat pump and did a great job for a great price
Page Hall
23:00 03 Aug 26
Peter Kutner
22:10 03 Aug 26
Highly professional company and a pleasure to work with.
Jacqualine Barber
21:29 03 Aug 26
Vangel Mavrodiev
16:10 03 Aug 26
I really have a bad experience with Neese company ! They finished their job partially , they collected the money , they left me with the ceiling damage . Look like I didn’t finish with my first project , now I need to look for another company to fix the problem left behind !!!
Mike Saccomanno
19:22 02 Aug 26
Freddi Lopez provided great customer service. Very friendly and knowledgeable. We truly appreciate him and Neese for the timely repair.
Dan Weiss
20:37 31 Jul 26
Mt Breezaire Wine Cooling system for my cellar needed repair. They diagnosed the problem and they are doing their best to repair the system in a timely manner. I highly recommend them
Jackie Malone
19:54 31 Jul 26
David was awesome! He arrived within the 20 minute window He’s very friendly and professional. His efficiency was excellent. He completed the requested tasks, answered all of my questions and promised to follow up with me asap. I highly recommend Neese Heating, AC & Plumbing.
Ron Wood
16:50 31 Jul 26
Zach Strickland is very knowledgeable as well as friendly. The maintenance call was very thorough with good explanation.
Charlie Swart
15:31 31 Jul 26
Neese must only hire the best. Chis followed up on an installation request. He gave us all the options and the benefits/pitfalls of each choice. He was patient and very knowledgeable.We have been a Neese customer for years and Chris continues to uphold their high standards.
charles swart
15:23 31 Jul 26
Sam is great. Your people are always top shelf and Sam included.
Jeff klewein
14:49 31 Jul 26
Kevin K
21:15 30 Jul 26
Austin was outstanding and fixed our AC issue. He is professional, knowledgeable and efficient. Jeremy assessed the issue and was also excellent. Professional, knowledgeable and efficient as well.
crystal davis
19:15 30 Jul 26
Sam did a amazing job very pleased with him
Lili
17:35 30 Jul 26
Diane La Bella
16:44 30 Jul 26
Bea
14:52 30 Jul 26
Thorough ck up by Neese jones
Patricia Krentel
14:26 30 Jul 26
He was great! Professional and explained everything completelyI came away with peace of mind especially as I am a new client of Neese
Tylertula
13:10 30 Jul 26
Christian McClure
23:45 29 Jul 26
As a general contractor and property manager, I have been using Neese for years. I cannot recommend them enough for their great service.
Duane Simms
23:12 29 Jul 26
This is our second time using Neese Jones for our HVAC needs. They are responsive, fast, thorough & reasonably priced. It was an absolute pleasure working with Brent & his team!
Lisa Ison
22:41 29 Jul 26
Danni Lopez took exceptionally good care of me! Thank you so much!!
Brandon Alexander
16:19 29 Jul 26
Shawn was extremely professional And knowledgeable. He kept me updated with everything he was doing, got prior acknowledgment of procedure and cost (Fair pricing!!) before he started, walked me through the short term and long-term options. Neese’s just earned a long term customer, and I will certainly be recommending them to my friends. Thanks team!
Richard Popwell
15:58 29 Jul 26
Quick service follow-up to call - David is ALWAYS reliable!
jonathan shaw
14:01 29 Jul 26
Great company, great service. Always a good experience with them.
anna barlow
13:14 29 Jul 26
Have used Neese Jones for a long time and trust them and the guys that installed the unit were outstanding.
Nick Byrd
22:35 28 Jul 26
Rusty was my technician today. He was friendly and relatable and most importantly spot on technically. He spoke to us enough to make my wife and I feel very comfortable but stayed focus and got the job done quickly.
Sarah Cebula
22:32 28 Jul 26
Jeremy has been so acknowledgeable and kind! We want him back every time!
Robert Culver
20:42 28 Jul 26
Trevor did a thorough review of our plumbing systems and identified several major items that needed repair. We were very impressed with his knowledge and willingness to address problems that had no easy solution. Our house is 100 years old so there are lots of head scratchers. Trevor is doing a great job getting everything upgraded to modern standards. .
Mark Phillips
20:04 28 Jul 26
Enrique was a great technician. Excellent job! Was very patient and knowledgeable with my HVAC installation and showing me the new Ecobee digital thermostats. Great he best customer service and took care in his work.
Steve Smith
19:08 28 Jul 26
Their technician, Jeremy Carlson, did a great job. Very professional and knowledgeable.I would recommend Neese Heat & Air Conditioning to everyone.Steve & Paula - Alpharetta
Aida Jimenez
18:25 28 Jul 26
Thorough, knowledgeable. Definitely makes me want to use you for my hvac needs
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6855 Shiloh Rd E
Alpharetta, GA 30005

GA Reg. CN-006856
Business License #9200446

 

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