Wine cooler shows E7 and may not respond correctly to set temperature; display may be blank or flicker intermittently.

Safety: Turn off power at the breaker or unplug the unit before removing the control panel or top trim.

Steps to resolve E7:

• 1. Remove control panel: Carefully remove the front control panel or top trim according to the service instructions, taking care not to crack the glass or damage the touch surface.
• 2. Inspect ribbon cable and connectors: Check the flat ribbon or harness connecting the user interface to the main control board. Look for kinks, tears, or discoloration at the contacts.
• 3. Reseat connectors: Gently unplug and replug the connectors on both the display board and main control board. Ensure they are fully seated and locked.
• 4. Check for moisture or corrosion: If the cooler is installed in a humid environment, look for condensation damage on the interface board. Dry gently and clean light corrosion with appropriate electronic contact cleaner.
• 5. Replace user interface board if needed: If the display remains erratic or unresponsive after reseating, replace the touch/display module with the correct Gaggenau part.
• 6. Evaluate main control board: If a new interface does not resolve E7, the main control board’s communication circuit may be defective and require replacement.
• 7. Reassemble and test: Reinstall the control panel, restore power, and verify normal display operation and responsiveness.

Note: Avoid using excessive force on glass or touch surfaces; they can crack easily and are expensive to replace.