Alarm sounds and E10 appears; refrigerator may not cool; condenser fan may be off while compressor is running hot.

Safety first: Unplug the refrigerator before working at the rear or near the compressor compartment.

Steps:

• 1. Access condenser fan: Remove the rear lower cover. The condenser fan is located near the compressor, blowing air across the condenser coil.
• 2. Check for obstruction: Inspect the fan blades for dust build-up, plastic wrap, or other debris. Manually spin the fan; it should rotate freely without grinding.
• 3. Clean the area: Use a vacuum and soft brush to clean the condenser coil and fan area. Do not bend the coil fins.
• 4. Test the fan motor: With the unit unplugged, check the fan motor connector for secure fit. Measure motor winding resistance; an open circuit indicates a failed motor.
• 5. Replace fan motor if needed: Remove mounting screws, disconnect wiring, and install a new Siemens-compatible condenser fan motor. Ensure correct rotation direction and secure mounting.
• 6. Restore power and test: Refit the rear cover, plug in the refrigerator, and verify that the fan runs when the compressor is operating.

Warning: Do not operate the refrigerator for extended periods with a non-functioning condenser fan; this can overheat and damage the compressor.