Shut off the water, unplug. remove lower louver screws, remove louvers. fill valve is on the left toward you. push down on plastic pieces that the tubing goes into, then pull out tubing. remove the hex screws holding the valve down. then unplug wires. better to mark hoses so you don't mix them up.
Usual parts that go bad on these icemakers--inlet valve, circulate pump, bin thermostat.
this is my 3rd inlet valve--on my 2nd circulate pump--2nd bin thermostat. unit is 8 trs old. all of these parts are easy to replace.