ice maker not ejecting ice - Frigidaire/Electrolux

Ice maker stopped working - I can cycle manually and it fills and freezes, but stops there (waited 24 hrs). I can force it to start again, and cycle but it wont do it on its own.

I tested the motor and it turns fine and powers under 110v.
The fill switch and holding switch checked out ok - 0 and infinitiy ohms.
The fill valve works fine and tested ok - 250 ohms.

Heater or thermometer maybe? Any help and how to troubleshoot would be great, thanks! What can I do next?

Check the freezer temperature make sure it’s cold enough. The freezer temperature should be 0 to 5°F for the icemaker cycle properly. If the freezer temperature is okay then I would replace the ice maker.