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. : `' @' s# A; b2 n) s' C5 f* e3 ]8 P; S3 y
Solution: turn off water supply and take the humidifier apart and clean it will stop the leaking.$ E1 D+ z6 I* C% E) F/ X
+ `" _( B( N6 z9 K " x; j# d1 P& S) L" \! m, aOtherwise, find a professional or change a new set.