Display shows E5 and the wine cooler may shut down or run erratically, sometimes with beeping.

Safety: Unplug the unit before removing the control panel. Static discharge can damage electronics; touch a grounded metal object before handling boards.

Steps to address E5:

• Power reset: Disconnect power for 10 minutes to clear any temporary communication glitch. If E5 returns, continue.
• Access the control panel: Remove the screws securing the top/front control panel. Carefully pull it forward to expose the display board and ribbon cable.
• Inspect the ribbon cable: Ensure the cable is fully seated in both the display board and main control board connectors. Look for kinks, cracks, or corrosion on the contacts.
• Dry any moisture: If you see condensation or liquid inside the control area, gently dry with a soft cloth and allow the panel to air dry completely before reassembly.
• Check the display board: Look for burnt components, cracked solder joints, or physical damage to the keypad area.
• Reconnect and test: Reseat all connectors, reassemble the panel, and restore power. If E5 persists, one of the boards is likely defective.
• Replace faulty board: Start by replacing the display/control panel board if the keypad is unresponsive or damaged. If that does not resolve the issue, replace the main control board.

Note: Handle circuit boards by the edges and avoid touching components or traces directly.