Although water is being dispensed, the icemaker is not receiving water from its tube. I want to be sure that the part I need is this 55B valve. I assume that the valve operates the water which is pumped to the water dispenser as well as the water which goes to the icemaker. Please let me know if I am correct, or tell me what I would need instead. Thanks.
Answer Hello Larry,
The water inlet valve 218720500 is a dual valve. One side is activated for water dispense and the other is activated for the icemaker. Water pressure closes both. There is no spring inside or anything to close the valve. It is closed purely by water pressure. The voltage energizes the solenoid against the water pressure to open it. The water pressure from the water supply pushes the water through the lines.
That being said, you should check the fill tube that passes through the freezer wall to be sure it's not frozen up. When the water valve starts to fail, it will close too slowly and causes the fill tube to freeze. If the fill tube is open, pull the unit out from the wall to gain access to the rear panel. Remove it and remove the screws that mount the water valve to the unit. This will allow you to get your meter leads on the wires to the valve. You should make sure your on the wires for the icemaker, (the green solenoid should have the icemaker water line attached to it that leads up the back to the fill tube). Force the icemaker to cycle. It takes about two minutes for the cycle to get around for the water to dispense into the icemaker. Watch the meter for 120Vac to pop up. It will only fill for about 7 seconds so you have to keep watching. If you see this voltage pop up and the water to the unit is on, the valve is bad and will require replacement.