Refrigerator displays E17 and may not cool correctly; often associated with sensor calibration or configuration issues after service.

Safety: Disconnect power before handling control boards.

Steps:

• 1. Power reset: Unplug the appliance for 10 minutes, then restore power. Observe if E17 clears.
• 2. Review recent service: If a control board or sensor was recently replaced, verify that the correct part number was used and that all connectors are in the correct positions.
• 3. Enter/exit service mode (technician-level): Some Gaggenau models require a service calibration after board replacement. This typically involves a key sequence on the control panel. Refer to service documentation or have a technician perform this step.
• 4. Replace with correct board: If an incorrect or incompatible board was installed, replace it with the exact Gaggenau-specified part.

Recommendation: Because E17 often relates to configuration and firmware, an authorized Gaggenau technician should handle diagnosis and correction.