While there are many explanations and reasons as to why your gas furnace may be leaking water, we’ve listed a few of the more common reasons below. With cooler air temperatures outside, this is a common problem that many home owners deal with.

If you’ve ever dealt with this, or you know someone who has, it’s not a fun issue to be surprised from. Learn about these common reasons why furnaces leak so you can prevent it from happening in the future!

Humidifier Leak

A common reason why your furnace may be leaking water is due to a fault in the humidifier. If you keep up on the annual maintenance of your Heating and Air Conditioning unit, then this shouldn’t be the issue because a certified technician would have caught the problem. If you haven’t been keeping up on annual maintenance, then this could be the issue! Call Hoosier Indoor Air at 317.888.9111 and we’ll get a certified technician out to fix the problem right away.

Faulty Secondary Heat Exchanger

Another common reason for leakage to happen in your furnace is due to a faulty secondary heat exchanger. It is a possibility that the secondary heat exchanger is the source of where the water is coming from. This could be an expensive repair and could potentially require a complete replacement of your furnace unit!

Internal Drain System Clog

Internal furnace drains sometimes share a common drain with your condensation line from the cooling coil. If the drain becomes clogged it may push the water from the condensate line back into the furnace. If this happens it may look like your furnace is leaking. When in fact it is just a clogged drain line.

Condensation Leak

Condensation leaks are typically found in high-efficiency gas furnaces that are channelled to a floor drain. the condensation builds up might be from damaged, broken, or poor functioning pipes. The leak could be a result of a clogged drain.

For standard efficiency furnaces, this should not be the case. Standard efficiency furnaces should not have condensation so if there is, a leak is rather uncommon, which could be a sign of a problem. If your standard efficiency furnace has leakage, this could mean the flue pipe was sized incorrectly.

If any of these issues are occurring with your furnace, do not hesitate to give us a call. We can be reached at 317.888.9111 to schedule an appointment and for emergency service. We are more than happy to send a certified technician out to your home today if you have a feeling something could be wrong with your furnace. Avoid costly repairs and replacements by keeping up to date on your annual furnace and air conditioning maintenance.