Ice Maker not working.

My Whirlpool side by side does not make ice. I’m stumped. It used to work properly, but one day a couple of weeks ago, it just stopped making ice. Ice chamber is 5°. Filter is changed regularly (was changed last month). I pulled the ice cube unit. Inspection shows nothing. No frost build-up, no broken wires. Ice cube maker unit appears to be working fine as the bail goes up and down normally. I don’t think it is a water supply issue as I have water through the dispenser in the door, and the pressure is fine. How do I fix this?