Freezer produces a loud humming or buzzing noise while running.

Safety first: Unplug the freezer before adjusting or touching moving parts.

Step-by-step checks:

• 1. Level the appliance: Use a spirit level and adjust the front feet so the freezer is stable and does not rock.
• 2. Check evaporator fan: Remove the inner rear panel and inspect the fan for ice contact or debris. Clear obstructions and ensure the fan spins freely.
• 3. Inspect condenser fan: At the rear, check the condenser fan for wobble or grinding. Replace the fan motor if noisy.
• 4. Compressor hum: A low hum is normal, but a very loud buzz may indicate start issues or internal wear. If accompanied by poor cooling, have a technician evaluate the compressor.