What to do if a mini split is leaking water?

When a ductless mini-split indoor wall cassette starts leaking water into your living space, you should take immediate action to prevent structural damage to your walls and flooring. First, turn off the mini-split system immediately using your remote control or by tripping the circuit breaker to stop further condensation production. Second, remove and clean the washable mesh air filters, as heavy dust blockages frequently cause the evaporator coil to freeze and overflow the drain pan. Third, inspect the flexible condensate drain hose exiting the exterior wall to ensure it is not pinched, kinked, or clogged with algae slime. You can troubleshoot blockages easily using a wet-dry vacuum on the drain line. You can verify that the leak is successfully resolved when clearing clogs or thawing coils allows condensation to flow unimpeded out of the drain tube without indoor overflow.