Refrigerator Not Cooling Properly
Your fridge isn't keeping things cold and you're worried about losing all your food. Let's work through this quickly. Some of these fixes take two minutes, and the most common one is something most people never think to check.
What to Check Before You Call Someone
Check the temperature settings
This is more common than you'd think. Someone bumped the temperature dial while putting groceries away, or a kid played with the settings. The controls might be on a dial (1-9) or a digital display.
Fix: Set the fridge to 37 degrees F and the freezer to 0 degrees F. If you have a dial, 4 or 5 out of 9 is usually right. Give it 24 hours to stabilize... temperature changes aren't instant in a refrigerator.
Clean the condenser coils
This is the number one DIY fix for a poorly cooling fridge and almost nobody does it. The condenser coils (usually on the back or bottom of the fridge) dissipate heat. When they're coated in dust, pet hair, and grime, the fridge can't cool efficiently. It's like running a car with a blocked radiator.
Fix: Unplug the fridge. If the coils are on the back, pull the fridge out and vacuum or brush the coils. If they're on the bottom behind a kick plate, remove the plate and use a coil cleaning brush ($10) to reach them. Plug it back in. Do this every 6-12 months... especially if you have pets.
Check the door seals
Close the door on a dollar bill. If you can pull it out easily, the seal isn't sealing. Do this test at multiple spots around the door. A bad seal lets warm air in constantly, making the fridge work overtime and still not keep up.
Fix: Clean the gaskets with warm soapy water... sometimes they just have food residue preventing a good seal. If the gasket is cracked, torn, or deformed, order a replacement for your model. They're usually $30-60 and snap or slide into place. You can also try warming a deformed gasket with a hair dryer to reshape it.
Check the evaporator fan
The evaporator fan circulates cold air from the freezer into the fridge compartment. If it stops working, the freezer might stay cold but the fridge gets warm. Open the freezer and listen... you should hear the fan running. If the freezer is cold but the fridge is warm, this is a likely suspect.
Fix: If the fan isn't running, it might be blocked by ice buildup (defrost issue) or the motor has failed. If there's ice around the fan, you have a defrost problem... the defrost heater, timer, or thermostat has failed. Manually defrost by turning the fridge off for 24 hours with the doors open, then see if normal cooling resumes. If the fan motor is dead, it's a $30-60 part.
Listen for the compressor
The compressor is the pump that drives the whole cooling system. It's at the bottom back of the fridge and should cycle on and off periodically. If you never hear it running (a low humming/vibrating sound), or if it starts and immediately clicks off, the compressor may be failing.
Fix: If the compressor runs but the fridge doesn't cool, you might have a sealed system leak (refrigerant). If it won't start at all, it could be the compressor, the start relay (a $10-20 part that's easy to swap), or the overload protector. Try replacing the start relay first... it's the cheap and easy test.
When It's Time to Replace
If the compressor is dead on a fridge that's 10 or more years old, replace the fridge. A compressor replacement costs $800-1,200 installed... that's a significant chunk of what a new, more efficient fridge costs. Same goes for a sealed system refrigerant leak on an older unit. The repair cost just doesn't make sense.
Read our full Refrigerator replacement guide →When to Call a Professional
Call an appliance tech if the compressor won't run, if you suspect a refrigerant leak, or if the defrost system keeps failing. Also call if the fridge is making new clicking, buzzing, or grinding sounds. And if you need to move a full-size fridge to access the coils and aren't up for it, no shame in that... some of these things weigh 300 pounds.
This guide is for informational purposes. For gas leaks, electrical issues, or emergencies, call a licensed professional immediately.