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. 2 P: Y( i( Z; F n, l0 A
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Solution: turn off water supply and take the humidifier apart and clean it will stop the leaking.# O8 K2 D! P8 _8 @
: S$ T2 ?2 V" ? ( v$ M' s$ e1 q+ l$ AOtherwise, find a professional or change a new set.