Ice maker powers on but will not start ice-making cycle (no water fill, no compressor)

Safety: Unplug the unit before removing covers or accessing sensors.

Steps to diagnose no start:

• Check indicators: Look for "Add Water" or "Bin Full" lights. Resolve those conditions first (fill water, empty bin, clean sensors).
• Try different modes: If your model has size or mode buttons, try changing settings to see if the cycle will start.
• Inspect keypad: For touch panels, ensure the surface is dry and clean. For mechanical buttons, verify they click and are not stuck.
• Sensor bypass test (for diagnosis only): Temporarily disconnect the bin full sensor or water level sensor and see if the unit attempts to start. Do not operate long-term with safety sensors bypassed.
• Control board replacement: If sensors and buttons are functional but the unit never initiates a cycle, replace the main control PCB.