Display shows E7 and the unit may not respond correctly to temperature settings; display may flicker.

Unplug the cooler before removing the control panel.

• Inspect the front control panel: Check for signs of moisture ingress, cracks, or physical damage around the buttons.
• Remove the control panel: On most hOmeLabs wine coolers, the control panel is held by screws accessible from inside the door frame or behind a trim piece. Carefully remove it to expose the ribbon cable.
• Check ribbon cable: Ensure the flat ribbon cable or wire harness is fully seated in both the control panel and main board connectors. Gently disconnect and reconnect to clean the contacts.
• Look for corrosion: If you see green/white corrosion on the connectors, clean lightly with isopropyl alcohol and a soft brush, then dry completely.
• Test operation: Reassemble the panel, plug the unit back in, and see if E7 clears and buttons respond normally.
• Replace UI board if needed: If E7 persists and buttons are unresponsive or random, replace the hOmeLabs control panel / user interface board specific to your model.

Caution: Do not pull on the ribbon cable directly; always release any locking tabs on the connector first to avoid damage.