Air Conditioner - Water Dripping Inside Room

As warm moist (humid) air from the room passes over the cold indoor coil, water condenses on the cold indoor coil and collects in the base pan where it flows to the rear of the air conditioner. It is normal to see water dripping on the outdoor side of the air conditioner. For more information, see our Air Conditioner - Water Dripping Outside article.


If water is dripping inside of the room:


  • The air conditioner may be installed so that it is tilted slightly into the room. It should be level or tilted slightly to the outside (about 1/4 inch) so that any excess water will drip outside rather than leak into the room.
  • A dirty air filter can cause moisture to collect and drip on the floor inside the room.
For model specific information on proper installation and filter cleaning, consult the Owner's Manual and Installation Instructions for the air conditioner you own.