Freezer shows F2 and may not respond to temperature adjustments; display may freeze or reset.

Safety: Unplug the freezer before removing the control panel.

Steps:

• Inspect for stuck buttons: Press each button individually to feel for normal travel. Clean around buttons with a slightly damp cloth (no excessive moisture).
• Remove panel: Take off the control housing and disconnect the user interface board.
• Check for contamination: Look for signs of liquid ingress or corrosion. Clean with isopropyl alcohol and a soft brush if minor.
• Test with power: If possible, reconnect the panel loosely and power on to see if F2 appears immediately. If so, the panel is likely defective.
• Replace user interface board: Install a new Sharp-compatible control panel assembly if cleaning does not resolve the issue.