19
Finally, some heating/cooling units are in
utility closets. In that case, the primary drain
line will run through an interior wall but end
outside. Some units have a warning device
that cuts power to the unit if the drain pan
fills with water.
Care and maintenance
The following are tips for maintaining the
condensation drain line.
Maintaining proper drainage
Check the drain line for proper function at the
beginning of each summer. It’s recommended
to have a professional service the line.
Ensure the secondary drain line drains properly.
The unit’s instruction manual includes
directions for doing so.
Maintain space around outdoor condenser units
and lines by trimming back landscaping.
Check the outdoor condenser unit on a regular
basis for debris. Before doing so, turn off the air
conditioner. Then check for anything — grass
and leaves, for example — that could impede air
flowing from the unit. Remove any debris with a
water hose (an adjustable spray nozzle makes
it easier). Check under the unit and remove any
debris that’s accumulated in the base pan.
CAUTION: Use only enough water
pressure as is necessary to clean the
condenser unit. Too much pressure
could damage the unit’s coils.
HOME TIP: Secondary drain lines typically
are over doors or windows. Water dripping
in these locations may indicate a clog in
the primary line.
SERVICE TIP: If debris has accumulated in
the condenser unit, call for service to avoid
damaging it.
