Top 1000 Contributor
That has happened to me when the water tank wasn't set properly into the unit. I've had to jiggle it into place a few times. Also, if I screwed on the water tank cap too tightly, I've had that happen a few times. I must also say, I'm on my 2nd unit. The 1st broke in 6-wks. Gaiam replaced it quickly with no issue. Perhaps you have a faulty unit? If my suggestions don't help, contact them for a replacement asap. At this price, it is a nice unit, works well & is quiet, but you need a functional unit. Good luck!
3 years, 7 months ago