Freezer displays E2, alarm may sound, temperature control may be locked out.

Safety: Unplug the freezer before opening the control panel.

Steps:

• Inspect buttons: Check if any button feels stuck or does not click normally. Gently work the button to free it.
• Dry moisture: If condensation or spills reached the control, remove the panel and carefully dry the area. Do not use heat guns directly on electronics.
• Clean contacts: For membrane keypads, cleaning is limited; if the keypad is damaged, replace the user interface panel.
• Reset: After reassembly, reconnect power and see if E2 clears. If not, the UI PCB may need replacement.