No one wants to deal with the burdening repercussions that leaks can cause. From damaged floors, walls and mold growth, it can be an incredible hassle. Not to mention, if you have a leak, it could mean that something more serious is occurring that needs to be addressed.
When people think of leaks, generally the key connections are bathroom and kitchen appliances, like the sinks and toilets. Even though those are predictable leaking locations, another area to keep an eye on is your furnace. Furnace leaks can be concerning and a bit alarming to witness. If you just found a puddle of water on the floor near your furnace, there are a few probable causes.
Typical Reasons for Furnace Leaks
You may be asking yourself “Why is my furnace leaking?”. When your furnace is working properly, you may hear water, but you should never see large amounts of water anywhere near it. If you do, then that means something is not working properly. There are many reasons why your furnace could be leaking, from things that you can brush off to more severe. Here is a list of the most common culprits so you can have better understanding of why this may be happening.
Condensation – The most common cause for a high-efficiency furnace leak is condensation. Typically, the condensation from a high-efficiency gas furnace is channeled to a floor drain. If the condensation tubing or the floor drain becomes clogged, then that would result in the hot exhaust cooling down inside the pipe. Once that exhaust is cooled, it will then drain back to the furnace and leak out, causing that puddle on your floor.
Whole-House Humidifier – If you have a whole-house humidifier connected to your furnace, then issues with that could cause leaking. If the humidifier is broken or not running properly, it could be leaking inside your furnace, which then makes its way to your floor. Leaking inside your furnace like this can cause serious damage, which can result in you needing purchase and install a new furnace all together. This is why it is critical to have routine maintenance done on your system to prevent this from occurring.
Faulty Secondary Heat Exchanger – If you ruled out other predicted issues causing the problem, then it could be possible that the secondary heat exchanger needs to be repaired or replaced. Hopefully this is not the case because it is a very pricey component to fix. You may have to do a completely new furnace replacement if this is the diagnostic.
Call A Professional
Majority of the time furnace leaks does not entail a large repair. However, if you have taken the corrective action and still see water leaking, then it is recommended that you call a professional to come take a look. With thorough examination, such as disassembling furnace components, they may be able to reveal what the real problem is. Even if the root cause ends up not of large concern, it is wise to have skilled eyes checking on it.