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. 5 @4 \9 T. ~. p! k & V/ K5 J0 z# ~5 V2 JSolution: turn off water supply and take the humidifier apart and clean it will stop the leaking.0 {1 h0 M+ e: u
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0 h* {+ j6 }; M M; j5 ]Otherwise, find a professional or change a new set.