Wine cooler displays E5 and may not respond correctly to temperature adjustments; control panel may behave erratically.

Safety first: Unplug the wine cooler before removing the control panel or top trim. Avoid static discharge to electronic boards.

E5 often indicates a problem with the user interface (UI) or communication between the UI and the main control board.

• Step 1 – Power cycle: Disconnect power for 5–10 minutes, then restore power. If E5 returns immediately, continue.
• Step 2 – Inspect control panel: Remove the control panel bezel or top trim according to the service manual. Check for signs of moisture, spills, or corrosion on the touchpad and circuit board.
• Step 3 – Check ribbon cable: Locate the flat ribbon cable or harness connecting the UI to the main control board. Ensure it is fully seated at both ends and not kinked or damaged.
• Step 4 – Dry and clean: If moisture is present, gently dry the area with a soft cloth and allow the panel to air dry completely before reassembly. Do not use heat guns directly on electronics.
• Step 5 – Replace UI or main board: If the cable is intact and dry but E5 persists, replace the Café-compatible control panel (user interface). If replacing the UI does not resolve the issue, the main control board may be defective and require replacement.

Handle electronic boards by the edges and avoid touching exposed solder joints.