What to Do When Your Fridge Is Not Cooling
A fridge that's not cooling properly is a serious problem that can lead to food spoilage. Before calling a technician or rushing to buy a new appliance, run through these common causes and fixes — many can be resolved without a service call.
First Steps: Check the Basics
1. Check the Thermostat Setting
Someone may have accidentally turned the thermostat dial to a warmer setting or to the "off" position. Check the temperature control (usually inside the fridge or on the control panel). The fridge compartment should be set to 3–4°C and the freezer to -18°C.
2. Check the Power
Ensure the fridge is plugged in firmly, the power point is active (test with another device), and the circuit breaker for that circuit hasn't tripped. For models with a display, check whether the display is showing an error code.
3. Check the Door Seals
Worn or damaged door seals (gaskets) allow warm air to continuously enter the fridge, forcing the compressor to work harder and preventing the fridge from reaching temperature. Test by closing the door on a piece of paper — if it slides out easily, the seal has failed. Fix: Clean the seal with warm water and mild detergent. Petroleum jelly applied to the seal can restore some flexibility. If the seal is cracked or torn, it needs replacement.
4. Check the Condenser Coils
Condenser coils at the back or base of the fridge release heat. If they're covered in dust, the fridge can't dissipate heat effectively and won't cool properly. Fix: Unplug the fridge. If coils are exposed at the back, vacuum them gently. If they're at the base behind a panel, remove the panel and vacuum carefully. Repeat annually.
5. Check for Blocked Airflow
Overpacking the fridge can block airflow between compartments, creating warm spots. Ensure there's space between items for air to circulate. Also check that the vents inside the fridge (usually at the back wall) aren't blocked by food items.
6. Is the Freezer Compartment Frosted Over?
In frost-free fridges, an ice build-up on the evaporator coil (usually in the freezer section) can restrict airflow to the fridge section. The fridge will feel warm while the freezer may still be cold. Fix: Defrost the fridge completely by unplugging it for 24–48 hours with the doors open. If this fixes the problem but it recurs, the auto-defrost heater or defrost thermostat may be faulty — call a technician.
When Is the Compressor the Problem?
The compressor is the "engine" of the fridge. If you can hear the fridge running (motor noise) but it's not cooling, the problem is likely not the compressor. If the fridge is completely silent and the interior light is on, the compressor may have failed. Listen for:
- A clicking sound followed by silence (compressor trying to start but failing — possible start relay fault)
- Complete silence from the motor (compressor failure)
- A loud buzzing noise (compressor struggling)
Compressor replacement is expensive ($400–$900 parts and labour) and may not be worthwhile for an older fridge.
How Old Is Your Fridge?
The average lifespan of a refrigerator is 10–15 years. If your fridge is over 10 years old and experiencing compressor or sealed system failures, replacement is usually more economical than repair. Modern fridges are also significantly more energy-efficient than older models.
Upgrading Your Fridge
Oceania Appliances stocks a wide range of fridges from Samsung, LG, Fisher & Paykel, Westinghouse and Hisense. We regularly have ex-display models at significant savings. Visit our Wetherill Park showroom or contact us at support@oceaniaappliances.com.au.