MFI2569VEM2 already presented a bad microchip on the control panel at the back of the fridge, it was causing defrost problems at the freezer. Installed a transistor to bypass the bad chip. Now two months later, the Ice Maker control board motor stops running, what stops the whole ice maker.

Disassembled the ice maker, tested the control motor directly to 120Vac, it runs nicely. Went again to the control board at the back of the fridge, removed and checked all the small surface mount transistors and M4 relay. The transistor Q17 that controls relay M4 was bad. Replaced with a NPN 2N2222 unit, after few hours I have Ice.

I was getting ready to purchase a new Thermostat for the Ice Maker, but the unit is working now.

It seems the control board is damaging components. It may be a failing 12V power supply that is a switching unit. Sooner or later I will need to replace that electronic board.

My issue seems to be a bad or broken wire in the harness under the freezer door. Several wires are wrapped in a cloth sheath . Seems the wires go into a connector and that's where they are prone to break.