I have a seven year old LG LFX25960ST "French Door" type Refrigerator with an ice & water dispenser built into the left side door. A few months ago the water and ice dispenser began to slow down which changing the filter did not improve. Eventually both water and ice stopped working entirtely. The ice maker assembly's Cube Size Indicator Lights, which also provide error codes in Test Mode, do not work and it is very likely that the assembly is not getting power, as it make no noise when the dispenser button is pressed and does not respond to forced function test (holding down the Fill Key for 3 seconds should make it start the ice-making process).
I do know that water with good pressure is getting to the refrigerator but I'm uncertain about the condition of the Water Inlet Valve. The current (original) water inlet valve, part #: 5220JB2009A, has a dual solenoid fed by two pairs of wires. The Blue & Purple pair carry a constant 14.9 volts AC while the Blue & Red pair carry nearly constant 44.5 volts AC which seems to be momentarily interrupted when the door's water dispenser switch is pressed. Does this seem be correct? The valve is is rated for 110-127 Vac.
My deepest thanks to anyone who can send me i the right direction before this thing drives me crazy.