It is possible that the shut-off valve was blocked by the cumulated white stuff. As a result, water supply can not be stopped even when water level is high. : \3 Z0 z M t8 K) G
, x' g1 {/ o: r6 Q, |Solution: turn off water supply and take the humidifier apart and clean it will stop the leaking.: z6 R5 g) M! u' ?: s& A0 B
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+ r# W& Y, z$ K: ?# QOtherwise, find a professional or change a new set.