Ice maker freezes up with heavy ice buildup on the evaporator or around the tray.

Safety first: Unplug the unit before defrosting. Do not use sharp tools to remove ice.

Steps to clear and prevent freeze-up:

• Manual defrost: Turn off and unplug the unit. Allow ice to melt naturally or use a hair dryer on low, keeping it away from plastic and wiring.
• Check door/lid seal: Ensure the door or lid closes tightly to prevent warm, moist air from entering.
• Inspect heater and sensor: Test the harvest heater and evaporator thermistor for proper resistance and continuity. Replace if faulty.
• Improve airflow: Make sure fans are running and vents are not blocked.

When to call a technician: Repeated freeze-ups after component replacement may indicate control logic or sealed system issues needing professional diagnosis.