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. $ A8 J5 e2 B( P6 {+ k
, c. g: ^( g( \! z4 }9 J' ASolution: turn off water supply and take the humidifier apart and clean it will stop the leaking. & U. O" C3 M c* m( M* M% _ g# Y- \- q# W E
9 u/ l$ P( z& y0 a8 YOtherwise, find a professional or change a new set.