Error code 21 displayed, ice maker may not harvest or fill correctly.

Safety first: Unplug the refrigerator before working on the ice maker.

Steps:

• 1. Inspect ice mold: Remove the ice bin and look for jammed or oversized cubes stuck in the mold or ejector blades. Clear any obstructions.
• 2. Check bail arm or sensor: Ensure the ice maker shutoff arm is not stuck in the off position and that any optical sensors are clean.
• 3. Manually cycle (if possible): Some Kenmore ice makers have a test button or can be manually advanced. If it does not move, the motor module may be bad.
• 4. Replace ice maker assembly: If the motor is not running and power is present, replace the complete ice maker assembly for reliability.