Water leaking in the inside of home.
Air conditioners take the moisture out of the air. When the air passes through the coils on the evaporator, they are cold. This causes the air to condense and water to form on the coils. It then drips off into a pan. When the pan is full if it is not drained, you will have an overflow and things get wet. How much water the unit collects depends on how much humidity is in the air, how much air you are moving through the coils and the temp of the coils.
My ac has a red
If you haven't already, emptying the water tanks, should solve the problem.
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