first thing to check is the water inlet valve it controls the water going into the refrigerator water inlet valves have solenoids that open and close to send water to the icemaker and dispenser they're usually located at the back of the machine behind the access panel but some can be found inside the fresh food section if your refrigerator is not dispensing water it could be because the water inlet valves fail a lot of times this is caused by a bad solenoid jammed plunger or a clog in the valve first check to make sure the house water pressure is good the system needs a certain pressure to work properly check your manual to determine what your fridge requires if it's too low water may not be able to reach the dispenser if the water dispenser solenoid has failed the water valve may not open to send water to the dispenser once you locate the valve you have to determine which solenoid is for the dispenser usually it's the larger 5/16 inch line once you locate it we can test the solenoid for continuity in order to see if the part and carry an electric current we have to test it with a multimeter set the continuity once you have it set touch the probes together to make sure it's working start by removing the wiring harness from the solenoid then touch a probe to each terminal if you don't get a reading then the solenoid has failed and you'll have to replace the valve if the solenoid tests okay we need to check to see if the valve is clogged or jammed to do that temporarily turn the water and power back on then put a bowl underneath the valve to catch any water that may come out then disconnect the 5/16 inch water line now press the dispenser and see if any water comes out of the valve if it doesn't that means the inlet valve is clogged or damaged and needs to be replaced if you need to order a part