Refrigerator makes a gurgling or hissing noise periodically.

Note: Gurgling, hissing, and dripping sounds are often normal in modern De Dietrich refrigerators.

Steps:

• 1. Identify the sound: If the noise is soft and occurs mainly when the compressor starts or stops, it is likely normal.
• 2. Check for abnormal vibration: Ensure the refrigerator is level and not touching cabinets or walls that can amplify noise.
• 3. Monitor performance: If cooling is normal and there are no error codes or leaks, no repair is needed.