Why Is My Fridge Making a Humming Noise?

If your fridge is humming, it’s usually a sign that it’s working as intended — but certain sounds can point to small issues that need attention. Understanding what’s normal and what’s not helps you keep your fridge running efficiently and quietly.

Normal Reasons for a Humming Noise

• The compressorThe compressor pumps refrigerant through the cooling system to regulate temperature. is running to maintain temperature — a steady, low hum is normal.
• The evaporator fanThis fan circulates cool air inside the fridge and freezer compartments. may hum as it distributes cold air.
• The ice maker (if fitted) can make a humming sound while filling or cycling.

When the Humming Might Signal a Problem

• Louder or irregular humming can indicate the compressor is overworking due to poor ventilation or a dirty condenser coil.
• Vibrations might occur if the fridge isn’t level or is touching adjacent cabinets or walls.
• Blocked vents inside can cause the fan to strain, increasing noise levels.

How to Reduce or Fix the Noise

• Ensure the fridge is positioned at least 5cm from the wall for proper airflow.
• Clean the condenser coils regularly to maintain efficiency.
• Check that the appliance sits level on the floor and doesn’t touch surrounding units.
• Listen for noise changes — a sudden loud buzz may need professional inspection.