Awasome Home Furnace Heat Exchanger Filled With Water Causes What Troubles Ideas. A cracked heat exchanger is a most hazardous thing that may cause furnace problems. A blockage in the furnace, lack of draft, warped/cracked gasket or furnace could need adjusting.

If it’s not a condensation leakage, it could be a heat exchanger. This is where the condensation starts from, so a problem with the heat exchanger can result in a leak on your floor. As heat exchangers help to transfer heat throughout your system, condensation is produced.