How to Fix a Fridge That Is Making a Loud Noise
A noisy fridge is one of the most common appliance complaints. Some fridge sounds are completely normal — others are a warning sign. This guide explains what different noises mean and how to fix them.
Normal Fridge Sounds
Before diagnosing a problem, it helps to know which sounds are expected:
- Humming: Normal. This is the compressor running.
- Clicking: Normal. This is the thermostat or defrost timer cycling.
- Gurgling or bubbling: Normal. Refrigerant moving through the lines.
- Whooshing: Normal. The ice maker filling with water.
- Slight crackling: Normal. The fridge expanding and contracting with temperature changes.
Abnormal Fridge Sounds and What They Mean
Loud Rattling or Vibrating
Cause: Usually the fridge is not level, or items on top of or beside the fridge are vibrating. Sometimes the drip pan underneath is loose.
Fix: Check that the fridge is sitting level using a spirit level. Adjust the levelling feet (most fridges have adjustable feet at the front). Check the drip pan under the fridge and ensure it's seated properly. Remove items from the top of the fridge.
Loud Buzzing
Cause: Often the water supply line to an ice maker or water dispenser vibrating against the back panel. Can also be a faulty fan motor.
Fix: If you have a water dispenser or ice maker, check the water supply line behind the fridge. Make sure it's not resting against the compressor or fan. If the buzzing is coming from inside the fridge, the condenser or evaporator fan motor may be failing.
Clicking That Won't Stop
Cause: Usually the compressor trying to start but failing. Can indicate a faulty start relay on the compressor.
Fix: This is a job for a technician. The start relay is a small component that can be replaced relatively cheaply, but requires disconnecting power and accessing the compressor compartment.
Knocking or Banging
Cause: Usually the ice maker dumping ice into the bin, which is normal. If louder, could be the condenser fan blade hitting something, or the compressor mounting becoming loose.
Fix: Check the condenser fan (behind or under the fridge) for obstructions like dust buildup or a foreign object. If the compressor seems to be knocking, call a technician.
High-Pitched Squealing
Cause: Usually a fan motor bearing wearing out — either the condenser fan (at the back/bottom) or the evaporator fan (inside the freezer compartment).
Fix: This needs professional repair. Fan motors are replaceable but require accessing refrigerant lines or internal components.
Quick Checks to Do First
- Pull the fridge away from the wall slightly — sometimes it's vibrating against the wall.
- Check there's space above and around the fridge for airflow.
- Make sure nothing is touching the back of the fridge.
- Remove items from on top of the fridge.
- Check the fridge is level by looking at the floor and using the levelling feet.
When to Call a Technician
If your fridge is making a persistent unusual noise and none of the above fixes help, it's time to call a technician. Noises that get louder over time, noises accompanied by poor cooling, or clicking sounds when the compressor is trying to start all indicate a component that needs professional repair.
When Repair Isn't Worth It
If your fridge is more than 10–12 years old and needs a major repair, it's often more economical to replace it. Modern fridges are significantly more energy efficient than older models — you'll save on electricity bills and avoid ongoing repair costs.
Visit Oceania Appliances at 2/14 Centre Place, Wetherill Park or browse our full range online. Free delivery across Sydney.