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Why is My Furnace Leaking Water?

The liquid leaking from your furnace is usually water, which your system removed from the air while cooling. Whether the issue can be resolved by you, the homeowner, or if it requires a call to Blanton’s Air, Plumbing & Electric can be determined by the location of the leak itself.

So, where is the leak?

furnace leaking water

Furnace is Leaking Around the Bottom and/or Drainpipe

Water leaking from under your furnace is most often due to a clogged line. The clog is formed by the accumulation of muck in the line or pan over time. This will happen to every system occasionally. Fortunately, most homeowners can resolve this issue simply and economically.

First, remove the pan and make sure it is clean and dry. Then, using a wet/dry vacuum, suck the PVC drainpipe and line clean. If the system and pan are very dirty, you may also want to remove the covers and vacuum there as well. Make sure the filter is clean. These steps should take care of the problem. Keep in mind: If you have not had an annual HVAC service, call Blanton’s Heating and Air to schedule one, so that we might rule out any issues with the humidifier.

If this does not solve the issue, check to see if there is a hole in the coil drain pan; if so, it will need to be replaced. Also, look for grease or oil on the coil — clean the coil with soap if needed.

The coil or drain may be completely clogged. If vacuuming doesn’t help, call a professional furnace repair service professional. If your air conditioning unit is operational and shares an internal drain with the furnace, the leak could be caused by an internal drain system plug and may require more than simple suctioning.

Furnace Has Ice On the Unit

When the unit freezes up and causes an overflow, replace the filter. Then find out if the coil needs to be cleaned of residue. Finally, check the Freon levels to make sure there are no leaks. If this does not correct the issue, contact Blanton’s Heating & Air.

Furnace’s Intake Vent is Leaking

If the system is leaking at the intake vent, it usually means wicking from another source or improperly insulated piping. Either case means a professional should be called.

Call Blanton’s Today for Leaking Furnace Repair in Fayetteville & Raleigh

If a thorough system cleaning does not address the issue, don’t wait: Contact Blanton’s Air, Plumbing & Electric today. Our team of licensed professionals can quickly diagnose your furnace issues and provide the repairs you need!


Why choose Blanton’s? Check out our reviews to see what people are saying about their experiences with our company!


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Don’t Settle For Less

Make Blanton’s Your
First Call!

We make the process easy in multiple ways but you can always expect the same, easy way when you work with us:

There’s no waiting Around

We don't schedule in those 4 hour windows - you won’t have to wait around for us.

Instant Updates on Arrivals

We call you and give you updates. We provide a 30 minute heads up phone call.

You’ll Know Who Your Technician Is

When you book, you get a welcome email that shows your technician's photo and some of their recent customer reviews.

We Provide real time tracking

When your tech is dispatched, we provide a link where you can track them en route.

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