18
Condensation Drain
Line
It’s necessary to pay attention to the line that
drains condensed moisture away from your
home’s heating/cooling unit. The drain line
runs moisture from the unit to the exterior
of home.
The line can become clogged with algae or
debris which may cause water to back up
into the heating/cooling unit’s drain pan.
This shallow pan can overflow easily and the
resulting water could damage your home.
The heating/cooling unit has a drain line built
into it. Some models have a secondary line to
provide backup if the primary line clogs. The
most common time blockage problems in the
line occur is at the beginning of the cooling or
heating season.
Some heating/cooling units are in the attic. In
that case, the primary drain line typically runs
through an exterior wall to the outside of the
home. Attic units also have a secondary line
that connects to the drain pan. This line also
runs to the home’s exterior.
