Do you see water or signs of condensation around the base of your furnace? When it’s working properly, the only sign of water coming from the furnace should be a regular dripping sound. There are many reasons why your furnace might be leaking, such as a condensation leak, a drip, or a draining issue. Your home’s gas furnace should not be leaking water, but if it is, follow the steps below to diagnose and fix the problem.
Furnace Condensation Leak
If you have a high-efficiency furnace in your home or business, the most likely reason for a furnace leak is that condensation is not draining properly. You have a high-efficiency furnace if the yellow energy guide tag shows 90% or higher AFUE, or if the vent/flue pip is white PVC (instead of metal). These high-efficiency furnaces cause condensation because they have cool exhaust. Normally, the condensation should exit your home through a floor drain. The leak could be a result of:
• Clogged condensation tubing
• Breaks in the condensation line
• Clogged condensation drain
• Problems with the condensate pump (if you have one)
If you have a standard-efficiency furnace (with a metal exhaust pipe) that has a condensation leak, your furnace’s flue pipe may be incorrectly sized.
Other Furnace Leaking Issues:
• Secondary Heat Exchanger: If you don’t have a condensation problem, the secondary heat exchanger may be the cause of the furnace’s leak. You’ll need a furnace technician to diagnose and fix this problem, because this may require a completely new furnace.
• Furnace Humidifier Problem: The humidifier could be leaking inside your furnace. As long as you have had the recommended annual HVAC service check, this is unlikely because your technician would have alerted you to the issue. If you haven’t had a tune-up, we suggest you call now because this leak could internally damage your furnace
• Internal Drain System Clog: Another possibility is that the internal drain system, which sends water to the furnace, is blocked. This would occur if your A/C unit is operating and shares an internal drain with your furnace.
Regular Furnace Maintenance Check-Ups
Most of the risks associated with water damage can be minimized if you will be proactive and schedule regular preventative maintenance for your furnace.
Leaks can cause big problems if left alone, such as damaging parts, walls and flooring, which can also lead to mold growth. All Points Heating’s skilled technicians can help diagnose, repair, or install furnaces. We also specialize in air quality systems, stove systems, BBQs & outdoor living areas, fireplaces, and home power generators. So, give us a call or email us today, and don’t forget to check out our special online offers! Our 24/7 repair service ensures that you won’t be on your own in an HVAC crisis.
Edited by Justin Vorhees
Gas Furnace Leak Issues in Pacific Northwest
Serving customers from Arlington to Renton and Bellevue to Shoreline, including Seattle, Redmond, Bothell, Edmonds, Lynnwood, Everett, Marysville, Mill Creek, Woodinville, Kirkland, Mercer Island and the surrounding area.