Hi @gary26442
Here's the [https://www.manualslib.com/manual/699112/Lg-Lfx23961-Series.html#manual|service manual] that may help.
Go to p.24 thru p.26 to view how to test the ice maker functions.
On p.34 & p.35 there are some ice maker voltage test points on the control board and at the back of the manual there are parts diagrams and a parts list. If you find the problem is a faulty part, locate the part number and then search online for the part number to find suppliers that suit you best.