Freezer is excessively noisy; loud humming, rattling, or buzzing sounds during operation.

Safety first: Unplug the freezer before touching moving parts or accessing rear components.

Level and stabilize:

• Use a spirit level to ensure the freezer is level side-to-side and slightly tilted back.
• Adjust leveling feet and ensure all feet are firmly on the floor.

Check internal noise sources:

• Open the door and listen for noise changes when the door is opened (fan noise often changes or stops).
• If noise is from inside, remove drawers and the rear interior panel to inspect the evaporator fan. Look for ice or debris contacting the blades.

Check rear components:

• Remove the rear lower panel and inspect the compressor and condenser fan (if present).
• Ensure copper tubing is not touching the cabinet or each other; gently bend away to create clearance.
• Clean any debris from the condenser fan and ensure blades are not rubbing.

Corrective actions:

• Secure components: Tighten loose mounting screws and add foam or rubber pads where tubing contacts metal surfaces.
• Replace noisy fan: If the evaporator or condenser fan motor is grinding or wobbling, replace it with a Blomberg-compatible motor.

Test: Reassemble and run the freezer, listening for reduced noise and stable operation.