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Why Is My AC Blowing Warm Air? Troubleshooting Guide

By FL-Air Heating and Cooling on June 16, 2025

There’s nothing worse than turning on your air conditioner and feeling warm air pouring from the vents. If your AC is blowing warm air, it’s a clear sign that something isn’t working the way it should. The issue could be simple, like a thermostat setting, or it could point to a bigger problem with your…

AC Repair

Wonderful service!

Wonderful service! Will use again! 😀

Faryal D.
Source: Thumbtack
Very responsive and professional.

Very responsive and professional. Also very honest, take good care of customer interest. I will definitely call him again for other projects.

JG O.
Source: Thumbtack
We appreciate Mark coming out and fixing our unit at 6 pm on a Friday! Honest guy, we’ll have him back to maintain it in the future.

Stephanie Woo
Source: Google

Gary Portales

Response from the owner:Hi, Gary. Your feedback is highly appreciated. Thank you so much for the review!

justise35

Thank you Brent. Outstanding service you gave me, answered my questions and was impressed with your knowledge and honesty. Thank You, J Walker

Response from the owner:Hi, Justise35. We are thrilled to learn that you had a positive experience with us!

Roly Geniza

This company was responsive and provided options for the emergency AC repair that we needed. Would highly recommend this company.

Response from the owner:Hi, Roly. Thank you so much for leaving us a stellar review!

Sarah

Excellent experience with this A/C company! I contacted them about an urgent issue, and they arrived within 30 minutes. Brandt, the technician, was professional, efficient, and had the problem fixed quickly. I really appreciate their responsiveness and quality of work. Highly recommend!

Response from the owner:Hi, Sarah. Your feedback is highly appreciated. Thank you for the review!

Martha Minahan

All good...prompt did the job fully

Response from the owner:Hi, Martha. We appreciate the kind words and are glad we could provide you with a positive experience!

Kim Mut

Response from the owner:Hi, Kim. We appreciate the rating, and are glad we could provide you with a positive experience!

Melissa H

Brandt was such a sweet young man. Super friendly, and knowledgeable. He didn’t try to sell us anything unnecessary, wasn’t pushy, took his time, arrived early, and explained what was recommended for a repair. We opted to just replace, and he explained all of our options with systems. I like that this company had multiple options with makes and models, and they’re able to replace duct work as well. Hang on to Brandt, he truly has integrity.

Response from the owner:Hi, Melissa. Thanks for taking the time to share your positive experience. We truly appreciate it!

Thomas Tonelli

As always, first class and top-notch service! Our service tech Bobby was on time as scheduled and did a very thorough regular maintenance check-up on our AC system. He gave a complete and thorough explanation of everything he did and an update on the state of our AC system.
FL-Air is outstanding! You will not find a more reputable AC company FL-Air and it all starts with their owner, Mark Lang!

Response from the owner:Hi, Thomas. We are thrilled to learn that you had a positive experience with us!

Kristin Tonelli

Great service as always! Our service tech Bobby was on time as scheduled and did a completely thorough and first class standard maintenance check up of our AC system. He explained everything did and gave me a thorough run down of the current state of my AC system.
FL-Air is as reputable and honest as you can get and it all starts with their owner Mark Lang!

Response from the owner:Hi, Kristin. Thank you so much for leaving us a stellar review!

Woody Helfand

Mark Lang and his crew are truly the best professional HVAC company I have dealt with in decades. I particularly enjoyed Brandt the tech and will request him as my primary technician. He was kind, thoughtful and really efficient. totally transparent. so grateful fo FL-Air Heating & Cooling!

Response from the owner:Hi, Woody. Your feedback is highly appreciated. Thank you for the review!

Bobby Shoemaker

Great guys and honest

Response from the owner:Hi, Bobby. We appreciate the kind words and are glad we could provide you with a positive experience!

Katrina Smith

Response from the owner:Hi, Katrina. We are delighted that you had a great experience with us. Thank you for taking the time to rate us!

John Verghese

Response from the owner:Hi, John. Thank you so much for rating your experience with us so highly!

edwin velez

Brandt allshouse came to my house on time and did an excellent maintenance job thank you

Response from the owner:Hi, Edwin. Thanks for taking the time to share your positive experience. We truly appreciate it!

Sandy Jones

The a/c service person Brendt was very thorough. Very honest did not try to sell us stuff we don't need.

Response from the owner:Hi, Sandy. We are thrilled to learn that you had a positive experience with us!

Jared Dwyer

Called got appointment quick tech came out and quickly diagnosed issue with unit and actually called and found out still have a warranty on unit saving me alot of money will be using company again definitely

Response from the owner:Hi, Jared. Your feedback is highly appreciated. Thank you for the review!

Roberta Carroll

FL-Air is who I call when the system goes down. I called in the morning and had everything up and running in the afternoon. It was the first time I had Austin as a technician and I was overwhelmed by his knowledge and demeanor. Great company, great service, great technicians!

Response from the owner:Hi, Roberta. We appreciate the kind words and are glad we could provide you with a positive experience!

Rowena Madden

I always have a great experience with FL-Air. I recommend them to everyone.

Response from the owner:Hi, Rowena. Thanks for taking the time to share your positive experience. We truly appreciate it!

Alexa Borgman

Always on time, respectful, and clean. I’ve priced matched too, very competitive. Love working with a family owned local business

Response from the owner:Hi, Alexa. Thank you so much for leaving us a stellar review!

Denyse Randazzo

Response from the owner:Hi, Denyse. Your feedback is highly appreciated. Thank you so much for the review!

Brian D'Amico

Response from the owner:Hi, Brian. We appreciate the rating, and are glad we could provide you with a positive experience!

Kelly Johnson

Brandt Allshouse was a true professional. He was on time, courteous, thorough, and he explained details of his services before, during and after the work was performed. We’re very pleased with our experience with FL-Air Heating & Cooling.

Response from the owner:Hi, Kelly. Your feedback is highly appreciated. Thank you for the review!

Michael Kierzynski

not only was their price great, but their service was also excellent.

Response from the owner:Hi, Michael. We appreciate the kind words and are glad we could provide you with a positive experience!

Kristen Trippe

Our new AC install experience and service with FL-Air Heating & Cooling was absolutely phenomenal. From our estimate appointment with Mark to the INCREDIBLE installation team of James and Ray, we had a perfect experience. Mark was very knowledgeable and personable. James and Ray, we could not be more grateful for.. they were beyond kind, professional, and hard working. Thank you again FL-Air Heating and Cooling for a wonderful experience.

Response from the owner:Hi, Kristen. Thanks for taking the time to share your positive experience. We truly appreciate it!

Susan Ballesteros

Brandt is such an amazing gem for FL-Air Heating and Cooling. My maintenance was perfect which means my install was flawless too. Knowing I have a clean, cooling system for my family and me is so important in Florida. I know I picked the right company!

Response from the owner:Hi, Susan. We are thrilled to learn that you had a positive experience with us!

Brian Morgan

Our air-conditioning went down. Brandon was there within 3hrs and the system was up and running again within an hour. Absolutely amazing service and professionalism. Not had service like this ever before.

Response from the owner:Hi, Brian. Thank you so much for leaving us a stellar review!

Arthur Giles

FL-Air was there when we needed them! They came out diagnosed the problem, infored us that the part was still under warentee and give us a reasonable estimate for the installation. Overall, we are very pleased with there service.

Response from the owner:Hi, Arthur. Your feedback is highly appreciated. Thank you for the review!

Aaron Levin

Response from the owner:Hi, Aaron. We must have done something right to get such a good rating from you. We really appreciate you taking the time!

A D Catchings

Brandon B was very nice, professional, and informative. He arrived early but remained in communication with me. He offered good advice and was very personable.

Response from the owner:Hi, A. We appreciate the kind words and are glad we could provide you with a positive experience!

Richard Pellicane

On time courteous professional and most importantly honest

Response from the owner:Hi, Richard. Thanks for taking the time to share your positive experience. We truly appreciate it!

Jim Borzelli

We had Brandt service our units. The standard maintenance was far more thorough than I expected and he was transparent with what he did and found (with pictures if his work). We also had an issue with a unit not working that he was able to quickly diagnose and fix.

I am very happy with the service we received and would highly recommend FL-AIR Heating & Cooling and the service tech Brandt.

Response from the owner:Hi, Jim. We are thrilled to learn that you had a positive experience with us!

Donna Stevens

Alvino did a great job of cleaning out the drain pipe for my air handler. He was courteous, knowledgeable, efficient, and timely. I am very pleased with FL-Air Heating and Cooling!

Response from the owner:Hi, Donna. Your feedback is highly appreciated. Thank you for the review!

John Brunetti

Technician was knowledgeable and effective.

Response from the owner:Hi, John. We appreciate the kind words and are glad we could provide you with a positive experience!

Liping Tang

Great service!

Response from the owner:Hi, Liping. Thanks for taking the time to share your positive experience. We truly appreciate it!

Elaine Douglas

Brandt took his time checking the whole unit out. We are very pleased with the service he provided.

Response from the owner:Hi, Elaine. We are thrilled to learn that you had a positive experience with us!

vida dorr

Excellent customer service and promptness. Brandon worked diligently to solve the issue with consideration and professional performance.

Response from the owner:Hi, Vida. Thank you so much for leaving us a stellar review!

David Taylor

Great service a rapid response.

Response from the owner:Hi, David. We appreciate the kind words and are glad we could provide you with a positive experience!

Linda Angebranndt

Very courteous and respectful

Response from the owner:Hi, Linda. Your feedback is highly appreciated. Thank you for the review!

jerry santana

Always satisfied with the service and Alvino is very nice, professional and knowledgeable.

Response from the owner:Hi, Jerry. Thanks for taking the time to share your positive experience. We truly appreciate it!

Dr. Paradis Esfandiari

My experience just now with Brandt Allshouse from FL-AIR Heating & Cooling was absolutely phenomenal. From the beginning, I noticed the little gesture of this gentleman making multiple maneuvers in the work truck to ensure that he did not drive an inch off my pavers and onto my grass. This is a small gesture that tells a lot about someone’s character - when no body is looking.

He was very nice, energetic, and efficient. He fixed the unit right away and was a true professional. They even came out same day. As a business owner I truly respect this company values and this technician beyond measure.

I am going to be a lifetime client and will be sure to refer everyone I possibly can to FLAIRHVAC. Thank you all again!

Response from the owner:Hi, Dr. Paradis. Your feedback is highly appreciated. Thank you for the review!

Tineil Davis

FL-Air heating and cooling serviced my unit when it wasn’t working. They were reliable, efficient, and cost effective. My service technician was Brandon and he was great. I will be recommending them to my friends.

Response from the owner:Hi, Tineil. We appreciate the kind words and are glad we could provide you with a positive experience!

Elizabeth Riefler

We were very happy with our first use of their services.

Response from the owner:Hi, Elizabeth. Thank you so much for leaving us a stellar review!

Grace Botsford

Response from the owner:Hi, Grace. We are delighted that you had a great experience with us. Thank you for taking the time to rate us!

Jerry M.

Great service by this company. Alvino was an excellent Tech. Friendly and professional. This will be my goto AC company. Keep up the great work...

Edward B.

Over the past few years, we've had an excellent experience with FL-Air Heating & Cooling. From purchasing new equipment to getting it installed and...

Brian James

Response from the owner:Hi, Brian. Your feedback is highly appreciated. Thank you so much for the review!

João Pedro

Another company tried to sell my a whole new unit, FL-Air not only managed to fix my current unit but charged only 10% of what I would have spent on a new unit. Lifesavers.

Response from the owner:Hi, João. Thank you so much for leaving us a stellar review!

Edward Bayonet

This is one of the honest companies my family has encountered for our home. From Mark to Zachary to Brandon, all of the AC specialists are easy to speak with and do a remarkable job.

One of the best companies we will always rely one.

Response from the owner:Hi, Edward. Your feedback is highly appreciated. Thank you for the review!

Byron Henry

Austin demonstrated exceptional professionalism and efficiency in addressing our HVAC issue. Upon arrival, he promptly assessed the situation, identifying the root cause of our air conditioning failure within the first 5 to 10 minutes of his inspection. His swift and precise troubleshooting led to a rapid resolution, ensuring that our system was fully operational in no time.
Throughout the process, Austin maintained clear and transparent communication, explaining the issue, its underlying cause, and the steps he took to resolve it. He also provided insights on how to prevent similar problems in the future, showcasing his expertise and dedication to customer satisfaction.
Based on this outstanding experience, I highly recommend this company for any HVAC-related concerns. Additionally, I strongly encourage requesting Austin as the technician, as his professionalism and skill set make him an invaluable asset.

Response from the owner:Hi, Byron. We appreciate the kind words and are glad we could provide you with a positive experience!

Alicia Torres

Excellent from start to finish.

Response from the owner:Hi, Alicia. We are thrilled to learn that you had a positive experience with us!

George Torres

Nate was very nice .he check every system completely with no issues. He did an excellent job .thank you nate

Response from the owner:Hi, George. Thanks for taking the time to share your positive experience. We truly appreciate it!

Mark B.

Call them from New York for my house in Florida, which is unoccupied at the moment. For a problem with my AC unit, which was not working properly. Cannot...

Rachel M.

We Just Got Our New A/C Unit Installed! We Did So Much Research, and Met Many Companies. We Finally Decided On FL Air Heating & Cooling.

From the start...

Deborah

Troy came to service our a/c unit. He was very knowledgeable,professional and personable. We highly recommend this company and Troy for your ac needs

Bob V.

We found a company we really trust. I called and told them our thermostat was not working. Turns out it was a blocked drain which was much cheaper. So yea,...

Carey H.

They are always friendly, always come when they say they will, and have reasonable prices - and best yet, they're honest! After several terrible experiences...

Adam C.

Exceptional HVAC Service!

I recently had the pleasure of working with FL-Air Heating & Cooling, and I couldn't be happier with the experience. From start...

Rachel M.

We needed someone in a pinch on a late Friday afternoon after we realized our a/c wasn't working. We realized the fan outside was not working.

After I did...

Peter J.

Our air handler's blower motor ceased it's duties one night and I called Mark Lang with FL-Air on a recommendation from a co-worker the next day. Mark came...

Doug P.

I heard about this contractor and my friend was right, The guy was knowledgeable, fair and was efficient. I WAS REALLY IMPRESSED. This was my best...