AC Drain Pan

The AC drain pan is typically located in the interior portion of the air conditioning system, either near or inside the air handler. It is important to remember that the drain pan is not always visible, as it can be tucked away in a corner or behind the air handler. If it is visible, it will likely be located near the evaporator coil and the condensate drain line.

One of the most common causes of an AC drain pan that is full of water is a clogged condensate drain line, which can cause the water to back up and fill the drain pan. In addition, a malfunctioning float switch can also cause the drain pan to fill with water, as the switch is responsible for controlling the flow of the condensate. Other potential causes include a blocked condensate drain line, a malfunctioning condensate pump, or a leak in the drain pan itself.