Although furnace leaks are fairly common, they should never be ignored. Pooling water can damage the system and the surrounding floor. In many instances, a furnace repair technician should be called immediately, but it’s a good idea to learn why the unit may have been leaking to prevent future instances.

What Causes Furnace Leaks?

High-efficiency furnaces will create condensation during heat production. Usually, the condensation will exit the system through pipes and flow out of the home through a floor drain. However, if the pipes are clogged or broken, it’s common for condensation to build up at the base of the furnace. 

Dirty or clogged filters are also a common source for furnace leaks. When they obstruct airflow to the furnace coil, the coil will either freeze or water will begin pooling up. Similarly, faulty or clogged humidifiers, which are used to add moisture to the air, will cause water to drip around the furnace.

A more serious cause of leaks is a broken or failing heat exchanger, a set of tubes or coils responsible for heating the air. If it has wear or cracks, water could pool on the floor. However, these cracks can also allow dangerous gases to escape into the home and will require immediate attention from a trained furnace repair technician.

How to Deal With a Furnace Leak?

When you notice water pooling around or dripping from your furnace, turn it off and immediately call someone who specializes in furnace repairs. In the meantime, clean up the water to prevent any damage to electronics or home structures.

If the leak was extensive, rent a wet-dry vacuum to ensure all moisture is thoroughly removed. Then, check the air filter and replace it if it's dirty or clogged. After the repairs are made, be sure to stay on top of all preventative maintenance to catch operational issues and avoid future leaks. 

If you notice water leaking from your furnace, turn to the professionals at Alleghany Highlands Mechanical, Inc. for repairs. This HVAC contractor has provided residential heating and air conditioning repairs and installations to Covington, VA, for over 30 years. Their experienced technicians are certified and trained to provide the best customer service. Visit their website to learn more about their services, and call them today at (540) 965-0767 for emergency furnace repairs or a free estimate.