Why is My Furnace Leaking Water?

It can be worrisome to see puddles of water under your Nashville furnace. While we can diagnose the problem remotely, there are a few reasons why you might be seeing all that water.


In high-efficiency furnaces, condensation usually leaks out of the furnace and into your floor drain. If the drain gets clogged or the condensation tube clogs or breaks, you will see puddles of water on the floor. 

nashville furnace leaking water

Internal Drain Clog

Is your air conditioning still working some days? If it shares an internal drain with the furnace and that drain clogs, it can send water to the furnace instead. The leaking water has to go somewhere so it usually ends up puddling on your floor. 

Broken Heat Exchanger

When your secondary heat exchanger breaks, you’ll see puddles of water form around your furnace. This can be an expensive repair, so call someone right away to find out what is wrong and do the necessary furnace repairs. 

Furnace Humidifier Problems

Do you have a humidifier? If it’s not working well, your furnace can leak water into your furnace, which then leaks out onto your floor. Regular system maintenance can usually find these problems before they get bad enough to cause leaks. 

Call Nashville’s Furnace Experts

No matter what the problem is, it will take the services of a professional heating technician to diagnose the problem and fix it correctly. Call The Surfin’ Plumbers, Heating & Cooling to stop that furnace leak fast! Make an appointment today to discover how easy it can be to get your furnace back to normal. We’ll have a furnace expert surf right over for emergency furnace repair in Nashville to fix your leaky furnace.


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