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Your Furnace Is Dripping Water When the AC Is On. What Does It Mean?

Furnace Leak Repair Huntsville AL

Noticing water around your furnace when your AC is running can be alarming. You’re not alone if you’ve seen this problem in your home. A furnace shouldn’t usually leak water, but this could happen for several reasons, and knowing the cause can help prevent bigger issues.

Why Is My Furnace Dripping Water?

1. Clogged Condensate Drain

When your AC runs, it produces condensation that drains away through a condensate line. If that line gets clogged, the water has nowhere to go and may pool near the furnace.

2. Leaking or Damaged Drain Pan

The drain pan underneath your AC can crack or rust over time, leading to water dripping around the furnace area.

3. Humidity and Poor Airflow

Excess indoor humidity or restricted airflow can cause more condensation than usual, which might result in water near the furnace.

4. Improper Installation or Aging System

If someone installed your system incorrectly, or it’s simply reaching the end of its life, leaks and drainage issues can become more common. This could be a sign that it’s time to consider furnace replacement by trusted professionals.

5. Broken Condensate Pump

If your system uses a pump to move condensation out of the unit, a failure in that pump can lead to water backing up and dripping near the furnace. A quick furnace inspection can determine if this is the issue.

Why You Shouldn’t Ignore It

Even small leaks can lead to significant problems. Water can damage your furnace components, cause rust, or even cause mold growth in your home. If you notice dripping water, it’s important to schedule a furnace inspection right away to determine the cause.

How Alabama Climate Control Can Help

At Alabama Climate Control, we’re more than just furnace installers. We’re problem-solvers. Our skilled team offers comprehensive furnace repair to address leaks and other system issues, helping you avoid costly damage. We also provide furnace cleaning and furnace maintenance to keep your system running efficiently year-round.

If your unit is older or beyond repair, our expert technicians can recommend the right furnace replacement options for your home. We focus on solutions that suit your needs and budget, never pushing unnecessary services.

We proudly serve homeowners and businesses throughout Huntsville, Madison, Decatur, Florence, Athens, Tanner, and the surrounding North Alabama areas.

Protect Your Home and Comfort

A leaking furnace doesn’t have to turn into a major headache. With Alabama Climate Control, you can count on honest assessments, expert repairs, and ongoing support to keep your home comfortable.

Connect with us today to schedule a furnace inspection with our trusted North Alabama HVAC team.

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Real Stories, Real Comfort

Huni Bun
September 5th, 2026

5 Stars ⭐⭐⭐⭐⭐
​Alabama Climate Control truly prides themselves on quality customer service. As a customer who was overly frustrated because my AC went out at the most hotest time of the season; they immediately understood my needs and concerns. They treated me with the utmost respect, genuine concern, and care.
​Not to mention, I contacted their after-hours department, and before I could even leave a message, someone was already returning my call—that’s award-winning customer service if you ask me! The original HVAC tech who answered assured me he’d have the office contact me first thing in the morning, and they proved they are a company of their word when I received that phone call right on schedule as promised.
​I was greeted with a prompt call from Ms. Nori—again, customer service above reproach—followed by the technician, Jeremy, who called prior to arriving and communicated every single step of the way. Jeremy went above and beyond, which clearly shows how passionate he is about his profession.
​If you’re searching for a reputable company, look no further. Alabama Climate Control treats you like more than just a customer—they treat you like family! 😉

Joyce Parker
August 3rd, 2026

Ryan Dunlap did a great job on our unit a good experience..

Sherry Loosier
August 3rd, 2026

Ryan Dunlap

Kayleah Hampton
August 3rd, 2026

Exceptional service! The technician, Ryan, was very informative, punctual and an all around outstanding guy! His service alone is worth the 5 stars, but the company deserves the recognition for hiring him! My air unit has never ran more cold.

Johnston Johnston
August 3rd, 2026

Ryan came out when we had a reach in freezer down. He diagnosed, got the part, and had us back going within just a few hours. I highly recommend Alabama Climate Control for all your kitchen needs

Ashton Smith
August 3rd, 2026

Ryan Dunlap went above and beyond to restore my ac in the hottest time of the year

Donna Gulick
August 3rd, 2026

Rocky Gulick did an excellent job on my hvac unit. It had just quit. He had it running within 30 minutes. This is the best company in North Alabama. Thanks for the prompt response.

David Coe
July 30th, 2026

Rapid response over July 4th weekend. Had the issue diagnosed and resolved within minutes of arrival.

Barbara Osborn
July 6th, 2026

Excellent service, excellent response time, my AC was up and running! Great service!

Ann Heilman
July 5th, 2026

Great service. Very informative; friendly and helpful! Would always call Alabama Climate.

Adam Cantrell
July 5th, 2026

Great technicians. Went above and beyond

anthony williams
July 3rd, 2026

THEY CAME OUT RIGHT AWAY AND REPAIRED MY SYSTEM
WITHIN 30 MINUTES. WAY TO GO ALABAMA CLIMATE CONTROL

Steve Alexander
July 3rd, 2026

Our HVAC went out on the July 4th holiday weekend. Alabama Climate Control responded very quickly and sent a very experienced and professional technician who quickly identified the problem and got the system up and running. We have been very pleased with the courtesy, professionalism and responsiveness of Alabama Climate Control and would highly recommend them.

Mary Beth Brown
July 2nd, 2026

Ryan Dunlap came out and replaced some parts in my unit and got it blowing cold air again just in time for the heat. Super nice and easy to deal with. Will request his service every time!

Zachary Hill
July 2nd, 2026

Ryan Dunlap is the best service technician I have ever dealt with hands down!!!! 5 star service. Will use everytime.

Contact Us

Have questions or need assistance with your HVAC system? Fill out the form below, and one of our team members will reply as soon as possible. We’re here to help you with all your heating, cooling, and indoor air quality needs.