water valve, motor drive for ice cube trays, bad switch to stop making ice if the basket is full. etc. etc.
I'd suggest calling a GE refrigerator repairman and have him/her come and take a look at your icemaker.
I have a VERY EXPENSIVE and VERY LARGE "just-freezer" and "just-refrigerator" in the S&B that I have had to replace the ice maker 2 or 3 times over the 15 years we have owned this unit..... ice maker problems are common and usually fairly easily fixed by replacing the whole icemaker mechanism.
Gary and Dee, Zowie and Bowie (traveling cat sibs)
2019 Cornerstone 45B, X15-605hp, Imperial, Spartan K3,
2013 Honda CR-V toad, Demco Excali-Bar II,
Demco Baseplate, Demco Toad Light system, 73 de W5FI