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HVAC Services Alpharetta GA

Neese Heating & Air Conditioning, Inc.

Heating & Air Conditioning Services in Alpharetta, GA

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AC Not Working

March 12, 2026 by All Contractor Marketing

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 2200 reviews
Neese Heating, AC and Plumbing Conditioning Inc.
Neese Heating, AC and Plumbing Conditioning Inc.
4.9
Daniel Johnson
22:33 24 Jul 26
Jeremy was great
Jan Warren
22:14 24 Jul 26
Part II…Ricky Camacho showed up as scheduled to install the replacement blower on time. He was very polite and knowledgeable. My system is operational again and I couldn’t me happier. I wish I had called Neese when the problem started over a month ago but felt I needed to go back to the company who installed the unit in 2022. Huge mistake!! Thank you Neese!!Jeremy arrived on time as scheduled. Immediately diagnosed the problem Unfortunately, a part needed to be ordered. I have confidence I will be up and running again within 24-48 hours!
Jim Anderson
21:41 24 Jul 26
Great service, very pleased.
Keith Connell
15:56 24 Jul 26
Great communication from the technician prior to and during the appointment. Quick install on new unit as well.
Curtis callaway
21:12 23 Jul 26
The office had great communication leading up to and the day of the appointment. Codey was great and explained everything perfectly. Thanks!
Marie Suttles
20:49 23 Jul 26
Wonderful service. Very knowledgeable technicians. Fast and efficient. Love the new unit!!!
Jacqueline Malone
18:55 23 Jul 26
Very professional and friendly visit. Enrique and crew 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 was frantic because I’m hosting 60 plus family members this weekend for our reunion and my HVAC system died on Monday. Everybody who helped me, from my first call to Neese, to Sam, Enrique and entire crew (and even the owner) were very efficient, patient and understanding. They got it done and I can now look forward to enjoying my family. It might be a rainy weekend but I’m happy to know we can seek refuge in the comfort of my home. JM
John Parcelewicz
18:41 23 Jul 26
Jeremy with Neese Jones is such a great AC / HVAC tech. He came back for a maintenance visit today. Even though the effort was a bit more than anticipated and the materials were a bit more than anticipated, Neeze Jones stuck to their originally quoted price! Thank you to Jeremy and Neese Jones for the great service!
Richard Popwell
15:23 23 Jul 26
Quick service follow-up to call - David is ALWAYS reliable!
rida dari
14:16 23 Jul 26
Shawn came by today was was an angel figured out what was wrong under ten minutes . Was a great experience.
Dawn Lockert
18:39 22 Jul 26
Judy Orkin
18:01 22 Jul 26
Great job!!!!!Always!!!Thank you.
Peggy Crowell
17:19 22 Jul 26
Cory Bryson
16:07 22 Jul 26
BERT BURNS
19:38 21 Jul 26
Great customer service and HVAC workers! Called this morning and reconfirmed the time they’d arrive. Brando, the technician was at my house by 11:00 and had everything up and running in 45 minutes!! Great job!!
Jim Harrington
19:04 21 Jul 26
We had a capacitor go out while we were on vacation. We called Neese, they scheduled us the same day and arrived on time, were clear in their communication and had us up and running in no time for a fair price. We also like that they're a locally owned Forsyth County business. We highly recommend.
Mike Yawn
18:46 21 Jul 26
We had a new Hvac unit installed a few weeks ago and it had started having a difficult time starting. Russ came out and even though we could not reproduce it he was able to determine the issue. It is working great now. Russ was both courteous and knowledgeable and I highly recommend him.
cleveland greer
17:30 21 Jul 26
Travis did a great job. He went above and beyond.Neese has been servicing my HVAC for 5 years. Always amazing customer service.This was my first experience with the plumbing service. Another great experience.I highly recommend Neese!
Angela Patelis
21:52 20 Jul 26
Very professional and knowledgeable
Ron Copenhaver
21:42 20 Jul 26
Neese sent a tech, Tristan, to service my AC and he did a fantastic job. Thanks
Denise James
21:25 20 Jul 26
Meghan Henderson-Arthur
20:09 20 Jul 26
Linda McMullan
17:59 19 Jul 26
What an amazingly efficient technician! Five stars.
Mike M
17:09 19 Jul 26
Honest, punctual, and reasonably priced. Our older unit was not blowing cold air, and we suspected the capacitor might be the problem. Freddy inspected the system, quickly diagnosed a faulty capacitor, and completed the repair without trying to upsell us on any unnecessary work. We truly appreciated his professionalism and honesty.
MHG
19:45 17 Jul 26
Wonderful company with great service!
Frances Fister
15:47 17 Jul 26
Mary Brewer
14:35 17 Jul 26
Great work and great customer service!
YAMINI SAGAR
20:00 16 Jul 26
The best company for all your heating and cooling needs. Zach is the best!!
Jonathan Robbins
17:18 16 Jul 26
Sam was an incredibly helpful and hardworking tech. We were really impressed by his patience and knowledge.
Martin Capuano
15:09 16 Jul 26
I was happy with Brandon's professional view
Bobby Mayson
21:15 15 Jul 26
Rusty did a great job. Identified a capacitorproblem and replaced it!Good, professional technicians!
Cathy Scheffer
20:26 15 Jul 26
Tim was great to work with.
Karen Kallianos
20:22 15 Jul 26
JONG IN LEE
19:41 15 Jul 26
so easy to access and Jeremy was so kind and well to take care it.
Stephen Pirog
16:23 15 Jul 26
Tech thoroughly reviewed my older furnace and A/C systems. He provided a series of options to replace the units with a brand that has great reviews in the HVAC world
Robert Maddux
00:53 15 Jul 26
We called about our air conditioning not working at 12:30. There was a tech at our house by 2:30 and he had the part we needed on the truck. We had AC again by 3:00. Nobody could provide faster service than that!
Joyce Kaznova
17:31 14 Jul 26
I have used Neese for 25 years.i always get full service.I just got a tune up on my AC and they were very good and complete.
Michael Bussert
15:54 14 Jul 26
We recently had Neese Heating. AC & Plumbing install a new whole HVAC system in our home in Cumming, GA. Everything from the price quote, to the installation, and cleanup was outstanding. the new system works perfectly and we couldn't be happier. We had several price quotes and Neese beat them all. I will not hesitate to call Neese for any other home repairs in the future.
Genny Bennett
15:49 14 Jul 26
Rusty with Neese heating and air is knowledgeable, professional and very pleasant. I was very pleased with his service. I have used Neese heating and air since 1996, that says it all. Quality company with quality technicians. Especially Rusty.
eric poole
13:45 14 Jul 26
Zach from Neese was awesome. Went above and beyond to go by after hours to make sure AJ occupants ac was working properly. 5 stars
Rick Woodford
22:57 13 Jul 26
Great guy!
victoria onwudegu
22:28 13 Jul 26
Kimuel Joseph
20:15 13 Jul 26
Great communication. Very efficient and professional. I loved that the services are available 24hrs.
Stacia Goins
15:41 13 Jul 26
Worked with Jeremy Carlson, he was very helpful.Very formative
Mike Allen
16:56 12 Jul 26
Have used this company for years. Always satisfied with the work.
Seth Hill
23:06 11 Jul 26
Rusty did my summer service this week and he did an outstanding job. He’s very professional and detailed with his explanation of everything he performed. He also provided us with several suggestions to improve our system. I appreciated his knowledge and professionalism.
Steve Arnold
16:14 11 Jul 26
Tristan Burnett from Neese Jones came for my biannual maintenance of my HVAC units. Prompt, professional, polite, and thorough.
Jeff Sauer
15:56 11 Jul 26
Being covered under the service contract is so great! Shawn came out barely 3 hours after I called and was so awesome!
anne nicely
23:45 10 Jul 26
Scott Camp
21:42 10 Jul 26
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6855 Shiloh Rd E
Alpharetta, GA 30005

GA Reg. CN-006856
Business License #9200446

 

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