Possible Cause #1:
The humidity level or fan speed is set too high
Solution:
Reduce the humidity level or the fan speed
Possible Cause #2:
Water tank is not properly attached
Solution:
Make sure the water tank is properly attached to the base
Possible Cause #3:
Condensation built up from mist or from fan or A/C blowing the mist down
Solution:
Move humidifier further away from wind/air outlet