I have a wirlpool side by side the ice maker quit working on me but before it quit it was over filling the tub even with the wire up in the off position any advice for me.

the model number on the fridge is ED2GHEXNQ00 I bought it 1 year 5 months ago

I have a Whirlpool side-by-side refrigerator model GS5SHAXNL02. Last night I discovered a puddle of water in front of the refrigerator with water pouring out the ice dispenser in the door. I cut off the water to the refrigerator and unplugged the refrigerator. I turned it back on and turned on the water, but it is not making ice. After waiting 1 day still no ice. I thought the water line might be frozen, so I turned off the unit and throughly defrosted the freezer. There is water in the tray. After defrosting, I plugged the unit in, it has been 24 hours and still no ice. How do I diagnose what is wrong? I am assuming a valve??