Water dispenser works, ice maker doesn't. Motor runs and maker goes through it's cycle, but no water fills the mold. I checked the fill tube from the water valve to the ice maker and it's clear. Heater doesn't seem to be working. L-N points read 120v, no voltage at the valve connection. Unplugged ice maker readings are as follows: T & H = 0 ohms; L & H = infinity (open). Is it a safe bet to replace just the motor module (#35 in the diagram) or do I need to replace the entire ice maker kit? Is there anything else I need to check? How do I verify that the valve is good? Also, I saw a manual posted for an in-door Whirlpool ice-maker. Is there one for my ice maker as well?