There are two electrically operated water valves (solenoids) in the refrigerator.

The single valve is the main valve for incoming water. It is located in the mechanical area of the refrigerator, on the right when facing the back. It has a single input from the house water supply and a single output to water filter.

Disconnect the electrical connector and read the resistance across the terminals. It should be 390 ohms ± 30 ohms (8%.)

From the water filter, inside the refrigerator, filtered water goes to the double valve in the left door in the icemaker area. This valve sends water to the icemaker and the water dispenser.

Disconnect the electrical connector and read the resistance across the terminals of either valve. It should be 390 ohms ± 30 ohms (8%.)