Wine cooler briefly shows 'Er' or 'Err' and beeps; controls may lock up or ignore button presses.

Safety: Unplug the cooler before opening the control panel.

Steps to address 'Er' or 'Err':

• 1. Dry the control area: If condensation or a spill reached the control panel, wipe it dry and allow several hours with the unit unplugged for moisture to evaporate.
• 2. Inspect the keypad: Check for physically stuck buttons. Gently press each button several times to free it.
• 3. Access the user interface board: Remove the screws securing the control panel and carefully pull it forward.
• 4. Check the ribbon cable: Ensure the keypad ribbon cable is fully inserted and locked into its connector on the display/UI board.
• 5. Visual inspection: Look for corrosion, burnt spots, or cracked traces on the keypad and display PCB.
• 6. Replace the UI board if necessary: If the error persists after drying and reseating cables, replace the Insignia user interface/control panel assembly.

Tip: Avoid spraying cleaners directly on the control panel; spray onto a cloth first to prevent liquid from entering the electronics.