I have water in the dispenser but the ice maker doesn't fill

Need that model number to give you correct model numbers. Because you dispense water does not answer why you do not have Ice. The dual water control valve has two sides one or the dispenser and one for the Ice Maker. Does the ice maker have any water in the ice slots? Fill slots with tap water does it dump when frozen?
Appliance 911 Sea Breeze

Sounds like you have a problem with water valve/triple solenoid assembly. It controls the flow of water to the door and ice maker. I believe it comes as a complete unit.

What is the model number of your unit?

There should be a float or electronic water level sensor that will tell the water to shut off, if it has calcium from the water on it or the float is damaged it will keep sending water until manually shut off(pull the plug). I would look for a water level sensor of some sort and clean or replace it. If that doesn't work it could be a sticking water fill solonoid which you should then replace

you either have a bad water valve,bad ice maker,also when was the last time you changed the filter?if it has a whirlpool ice maker you can pop off the cover on the ice maker,jump out the ice maker by sticking a jumper wire into the t and h,let it run for 15 to 20 seconds and pull the wire out,the ice maker should keep spinning,if it does go all the way around the water should come in when the white arms are at 11 oclock,if the water doesn't fill into the ice maker you can jump out the water valve from the ice maker,it says to jump it out from v to n but i jump it from v to L,if it fills with water the ice maker is bad,no water the valve is bad.you have a double valve,one for the dispenser and one for the ice maker but if one fails you have to change out the valve and it comes with both.next time send the full model number off of the machine and i can look it up and see what valve and ice maker is on your machine,when you find out what the problem is,call your parts store,give them the model number and they'll sell you the correct part.http://fixitnow.com/wp/2010/09/05/whirlpool-built-modular-icemaker-wiring-diagram-and-test-points/ copy and paste and it will show you how to jump out the ice maker.

Ice maker bad or the ice maker water valve mounted on the same bracket as the dispenser is bad. These frigs are prone to bad ice makers after a few years.

The water inlet valve on the back of the unit where the water supply comes in can have a slow leak and will cause ice to buildup and block the fill tube. Disconnect the ice maker line from the valve and watch to see if it has a slow drip. It doesn’t take much to eventually block the fill tube
Try swapping the wires on the dual water inlet valve. Then try the water dispenser. The water should go to the ice maker. This will tell you weather or not the ice maker valve is working and if the line is clear.

The water dispenser and the ice maker use a different side for each one. The water control valve is most likely the problem. To test the ice maker fill with tap water and let freeze. If the ice dumps then the water valve is the problem. If you need part numbers I will need your model number. Thank you Sea Breeze

So the dispenser is getting water. Try swapping the wires on the dual water inlet valve. Then try the water dispenser. The water should go to the ice maker. This will tell you weather or not the ice maker valve is working and if the line is clear.

If the valves clicks but water doesn't get to ice maker the fill tube can be stopped up with ice.The water inlet valve on the back of the unit where the water supply comes in can have a slow leak and will cause ice to buildup and block the fill tube. Disconnect the ice maker line from the valve and watch to see if it has a slow drip. It doesn’t take much to eventually block the fill tube.