Why Is My Furnace Leaking?
Perplexed by a leaking furnace? Under normal circumstances, a furnace does not use water or create condensation. However, anything from a tilted drain pipe to a faulty humidifier can cause pooling liquid under a furnace. In most cases, you simply need some regular furnace maintenance to clear things up and get the heating system running normally again.
As always, be safe when inspecting your furnace. Some furnace problems can lead to gas leaks as well, in which case you need emergency repairs. Here’s some info about why a furnace leaks water sometimes. For the best results, always have a certified HVAC technician inspect and repair the problem.
Condensation Puddle Under the Furnace
Most often when you have a puddle under the furnace, the liquid is actually condensation. This may sound foreign to you if you are used to older furnaces that did not create condensation. However, modern furnaces use cooling exhaust to boost energy efficiency.
When everything is working perfectly, the moisture gets exhausted before it can condense and pool. If condensation makes it look like your furnace is leaking, it’s time for a routine maintenance visit from the HVAC company.
Furnace Humidifier Problem
Furnace leaks are often related to humidifiers, which draw water from plumbing and add it to the heated air from the furnace. The leaking furnace humidifier apparently has a loose pipe or some other issue causing superfluous water to build up. If the pipe is clogged, your humidifier might be adding dirty moisture to the air, so this is one to get fixed ASAP!
Air Conditioner Drain Clogged
See if you can trace the dripping water to an internal drain pipe connected, which would also be connected to your air conditioner. It may only look like your furnace is leaking when actually this drain is clogged, tilted, or broken. Have an HVAC professional out to inspect and tune-up the equipment to prevent corrosion and other problems, especially before cooling season starts.
Broken Heat Exchanger
There should never be condensation leaking from a furnace heat exchanger. If the leak traces back to the heat exchanger, it’s very bad news. Be warned that you likely need a complete furnace replacement. On the plus side, it’s good to detect this problem early before it causes a deadly gas leak.
Get Help with a Leaking Furnace in Chicago’s North Shore Area
Glenbrook Heating & Air Conditioning can troubleshoot your furnace leak to get things fixed and make sure your furnace is running efficiently and cleanly.
Glenbrook Heating & AC is great. I really enjoy working with Jill, and the technicians - Dominick and Nick are the two I have worked with -- are always prompt, thorough, and answer my many questions. Keep up the great work.- Mark C. 07/12/18
A huge thank you for coming out in a short notice Brian was professional and service was outstanding you save us from scorching temps we really appreciate you!!!- Rosemary S.
This is to thank you for your quick installation of my new water heater. It means a lot to me. You and your dad should be commended for your prompt and business-like way of conducting your business. I made the initial call to Fred…- Betty H. (Glenview)
Fred and Brad,
Thank you so much for your prompt attention.- Marla S. (Glenview)
Thank you for the beautiful job you did in the basement! I really appreciate the thoroughness and care by which you put the whole thing together! It is always a pleasure to do business with you and your dad. Please send regards to him.…- Terry B. (Glenview)
Dear Fred and Brad,
Thank you very much for your fast response to my air conditioning problem. Brad was a genius—in a very short time he identified the problem, corrected it, and was on his way. I appreciate your service and fine work.- June K. (Glenview)
Thanks for stopping over on Saturday to check by boiler during the deep freeze. You’re the best!- Monika
Fred, Brad and Jill,
Thank you for such wonderful service. You all have been so helpful. The installation was flawless and we love how well the furnace works. What a difference! See you in the spring for our annual cleaning.- George and Ginny H. (Northbrook)
Thank you for a job well done. See you in the winter.- Behrooz Z. (Northfield)
Thanks so much for your prompt service. I really appreciate it.- Sally K. (Wilmette)
Thank you for the quick service.- Alice M. (Skokie)
Thank you Brad for your tidy job of putting in the humidifier.- Susie