Where Is the Drain Pan on My Window A/C Unit?

Description

• The drain pan is a deep-sided pan located beneath the air handler of an air-conditioning unit. The drain pan's function is to catch moisture caused by condensation from inside of the unit before it damages other components of your air conditioner or windows, surrounding walls or flooring under the window.

Types

• Drain pans of older models of window air-conditioning units may be made of galvanized steel, which may rust over time. Today, drain pans are constructed of sturdy plastic, stainless steel or fiberglass. Drain pans are typically 1 to 2 inches deep and are fitted with two drain outlets as well as plugs for easy drainage.

Location

• The location of your drain pan depends on the manufacturer and model of your window air-conditioning unit. However, most drain pans are located beneath the coils or coil section of your window unit. Check the manufacturer's manual that came with your air conditioner for exact location of the pan and instructions on how to remove, clean or replace the drain pan for your specific model.

Draining

• Some window air-conditioning units may not have a drain pan that is suitable or accessible for do-it-yourself repair. If your air conditioner is leaking or dripping water, check the base of the unit for a small, dime-shaped hole that you can punch out. Insert a piece of tubing that fits the hole into the space, using a clamp to hold it in place. This will allow water to drip to a location you determine, such as a bucket, and not your floor.

Maintenance

• Regularly clean your window air-conditioning unit to prevent dust and dirt buildup on the outside coils. Use a cotton swab or soft brush to clean the drain pan hole and replace drain pan tubing if your tubing looks old, cracked or has any leaks or holes. Make sure that your air-conditioning unit is tipped slightly downward at the back so that excess water flows out the back of the unit and outside and not down into your windowsill, walls or flooring inside.