Just bought a house with a Whirlpool refrigerator, model number ER2CHMXPL00, by the date on the tag it's 5 years old. The previous owners did not have a waterline hooked up to it. I put in the waterline but the icemaker does not work. The unit in the freezer makes a rattling noise that I've never heard a refrigerator make and I also can see that there's no water in the line from the inlet valve at the base of the refrigerator to the freezer. I verified that there is water in the supply line.
Does this sound like it's a problem with the unit in the freezer, a problem with the inlet valve/solenoid (part number 2188782), both, or something completely different?