The gate valve solinoid in your unit is not engaging the float ball to allow the water to be pumped out. The reason can be a bad solinoid, or a defective control board. The only way to find out which is to run the on board diagnostics through the touch pad panel.
What I have done is upload the service manual for your unit. It has all the diagnostic proceedures and is illustrated. Albeit not too clearly. Sorry for that.You can get it by clicking here.
To download this file:
On the first page scroll down to the bottom and select "FREE"
On the next page enter the letters in the box and select "download"
Save the file to your hard drive and open it with a .pdf reader. I recommend FoxIt reader. (foxit.com) Its smaller than adobe and no spyware.If there is something in the manual that you do not understand just post here, and I will walk you through the proceedure.
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