Refrigerator Not Cooling? Here's How to Fix It
A refrigerator that's not cooling properly is a serious problem - your food is at risk of spoiling and you need a fix fast. Whether your fridge is warm, the freezer is cold but the fridge isn't, or nothing is cooling at all, most refrigerator cooling problems are caused by a few common parts that you can replace yourself.
✓ Common Causes of Refrigerator Not Cooling
1. Dirty or Failed Condenser Coils
The condenser coils release heat from inside the refrigerator. When they're covered in dust, pet hair, and debris, they can't release heat efficiently and the fridge won't cool properly. This is the easiest fix - just clean them.
2. Bad Evaporator Fan Motor
The evaporator fan circulates cold air from the freezer to the fresh food compartment. If it fails, the freezer may still be cold but the refrigerator section will be warm.
3. Failed Start Relay or Overload Protector
The start relay helps the compressor start up. When it fails, the compressor won't run and nothing will cool. You may hear clicking sounds as the compressor tries to start but can't.
4. Defective Compressor
The compressor is the heart of the cooling system. If it fails, nothing will cool. This is the most expensive repair.
5. Frosted-Over Evaporator Coils (Defrost System Failure)
If the defrost system fails, ice builds up on the evaporator coils and blocks airflow. The freezer may be cold but the fridge is warm.
6. Bad Temperature Control Thermostat
The thermostat controls the cooling system. If it fails, the compressor and fans won't run and nothing will cool.
7. Sealed System Leak (Refrigerant Loss)
If the sealed system develops a leak, refrigerant escapes and the fridge gradually loses cooling ability. This requires professional repair.
✓ Troubleshooting Steps (Do These First)
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Check the temperature settings - Make sure the thermostat wasn't accidentally turned down or off
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Clean the condenser coils - Unplug the fridge, locate the coils (usually on the back or bottom), vacuum thoroughly
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Check for airflow blockage - Don't overfill the fridge. Air needs to circulate. Check that vents aren't blocked
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Listen for the compressor - It should run periodically with a low humming sound. No sound = start relay or compressor problem
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Check the evaporator fan - Open the freezer and listen for the fan. If it's not running, that's your problem
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Inspect door seals - Close the door on a dollar bill. If you can pull it out easily, the seal is bad
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Check for frost buildup - Remove the freezer back panel and look for excessive frost on the evaporator coils
✓ Find Your Refrigerator Cooling Parts
We stock Evaporator Fan Motors, Condenser Fan Motors, Start Relays & Overload Protectors, Defrost Heaters/Thermostats/Timers, Temperature Control Thermostats, Damper Controls, and Door Gaskets & Seals for all major brands.
✓ Why Choose XPart Supply
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30+ Years Experience - Helping Canadians fix appliances since the 1990s
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Expert Phone Support - Real appliance techs who can help diagnose your refrigerator problem
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Fast Canadian Shipping - Get your part quickly before food spoils, no cross-border delays
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Guaranteed Fit - We'll make sure you get the right part or your money back
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OEM & Premium XPart Options - Choose genuine manufacturer parts or high-quality aftermarket alternatives at better prices
Need a replacement instead of a repair?
Sometimes the repair cost isn’t worth it. XPart Supply carries Certified Pre-Owned washers, dryers, and major appliances that have been inspected, repaired, cleaned, and tested — available for local pickup or in-town delivery in Kitchener, Waterloo, Cambridge, Guelph, Brantford, and Hamilton.
View Certified Pre-Owned Appliances
✓ Frequently Asked Questions
How much does it cost to fix a refrigerator that's not cooling?
DIY parts typically cost $20-$150 depending on what's needed. Evaporator fan $40-$80, start relay $15-$30, defrost heater $25-$50, condenser fan $40-$70, thermostat $20-$40. Compressor $200-$400+ (often not worth it on older fridges). Professional repair costs $200-$500+ including labor.
How long can food stay in a fridge that's not cooling?
Perishable food is safe for about 4 hours if you keep the door closed. After that, you risk food spoilage and foodborne illness. Move food to a cooler with ice or a working fridge/freezer.
Why is my freezer cold but my fridge is warm?
This is almost always the evaporator fan motor (not circulating cold air to the fridge), a defrost system failure (frost blocking airflow), or a stuck damper control.
Should I repair or replace my refrigerator?
If your fridge is less than 8 years old and the repair costs less than half the price of a new fridge, repair it. If it's over 12 years old or needs a compressor replacement, replacement may be more cost-effective.
How often should I clean my condenser coils?
Clean condenser coils every 6-12 months, or more often if you have pets. Dirty coils are the #1 preventable cause of refrigerator cooling problems.
Can a refrigerator be fixed if the compressor is bad?
Yes, but compressor replacement is expensive ($300-$600+ in parts and labor) and often not worth it on refrigerators over 8-10 years old.