Furnace leaking water when ac is on

Stepping into a puddle of water near your furnace is often the most obvious symptom of a leaking unit.

Water under furnace in winter

There are several possible reasons behind your furnace leaking water, a few you may address yourself and others that will require a technician to remedy the problem.

To better troubleshoot why your furnace is leaking water, you need to know the type of unit you have in your home.

We’ll walk through the two primary types of furnaces and how to tell which you own.

Once you’ve narrowed the field, we’ll dive into the possible causes of a leaking furnace, highlighting the fixes you can try at home and noting when it’s best to call in an HVAC specialist.

What to do about a leaking furnace

Even if you eventually call in a furnace repair company, understanding why your furnace is leaking water empowers you to choose the best solution and ask questions to understand how the repair will be made.

Below are our recommended steps to take after dis

boiler dripping water when heating is on

combi boiler leaking water when heating on