Furnace and Air Conditioning

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Why Is My Furnace Leaking Water?

Most of the time, we expect furnaces to last up to 30 years. However, many don’t last nearly that long.

Homeowners will experience various HVAC failures over the years. And that means you’ll often have a lot more questions than answers.

If you’re asking yourself “why is my furnace leaking water?”, we’re here to help.

Keep reading to discover the possible solutions!

1. Condensation Problems

If you have a leaking furnace, condensation may be the primary culprit. This is most likely to happen with high-efficiency furnaces rather than older, less efficient units.

Condensation leaks may happen if the floor drain or tubing is clogged or damaged. This often happens to high-efficiency units, and we recommend contacting someone who specializes in furnace repair to help solve the problem.

By the way, if you notice water condensation on a conventional furnace, then you need to contact a pro ASAP!

Man turning wrench to repair condensation problem

2. Humidifier Issues

Another issue requiring furnace repair is your humidifier. If the humidifier inside the furnace is broken, it will need to be repaired or replaced immediately.

We say “right away” because the longer the humidifier leaks, the more water damage it may do to your floors and walls. Over a long enough timeline, this may lead to the development of mold and a reduction of indoor air quality that puts your family’s health in danger.

If you suspect the humidifier is broken, you should immediately call a professional to have it repaired or replaced. Also, it wouldn’t hurt to get on a regular HVAC inspection plan. HVAC professionals can detect humidifier problems early on and deal with them before the situation gets any worse.

3. Heat Exchanger Malfunction

Some furnaces (such as standard efficiency furnaces that operate at 70-80% efficiency) may only have one heat exchanger. Although, if you have a secondary heat exchanger, it may be the cause of your unexpected water leak.

The bad news is that a secondary heat exchanger malfunction is one of the worst possible HVAC issues you can face. If repair is possible, then it may be very expensive. Furthermore, if repair is not possible, then you may need to replace the furnace altogether.

Obviously, no one wants to spend that amount of money on an expensive furnace repair or replacement if it can be avoided.

That’s why it’s important to contact an HVAC professional for things like a leaking furnace or broken furnace. They can review all of your options with you and potentially save you quite a bit of money!

Photo HVAC system test

The Answer to “Why Is My Furnace Leaking Water?”

Now you have an answer to the question, “Why is my furnace leaking water?” You’re probably going to need some professional help.

But do you know which HVAC professionals you can count on to deal with the issue?

At JDC Heating & Cooling, we are happy to serve all of Pittsburgh, the South Hills, and many parts of Westermoreland and Washington counties.

Ready to schedule a repair for your leaking furnace? All you have to do is contact us!