Display shows E10 and the interior light or other low-voltage functions may not operate correctly.

Safety: Unplug the unit before testing for shorts or removing the control board. Use caution when working around mains voltage.

Troubleshooting steps:

• 1. Observe symptoms: Note which low-voltage components (display, lights, fans, sensors) are not working. This can help identify a shorted load.
• 2. Inspect LED light modules: Remove interior light covers and check for signs of overheating or moisture. Disconnect the light harness and see if E10 clears after a power reset.
• 3. Check fans and accessories: Disconnect evaporator and condenser fans one at a time (with power off), then restore power to see if the error disappears, indicating a shorted motor.
• 4. Inspect control board: Access the main control and look for burnt traces or components in the low-voltage section. Measure output voltages if you have the proper tools and training.
• 5. Replace faulty load: If a specific light module or fan is identified as shorted, replace it with the correct Gaggenau part.
• 6. Replace control board if needed: If no external load is shorted and the board does not provide correct low-voltage outputs, replace the main control board.
• 7. Reassemble and test: After repairs, reconnect all components, restore power, and verify that E10 is cleared and all functions operate normally.

Warning: Do not bypass fuses or protective devices on the control board; this can create a fire hazard.