Guides · Updated October 12, 2026
Refrigerator not cooling: six things to check before you call
A refrigerator that stops cooling is urgent, but it is not always broken. Run these six checks in order. Each one takes a minute or two, and the first three fix a surprising share of calls.
1. Is the freezer still cold?
Open the freezer. If it is cold and the fresh-food side is warm, the compressor and sealed system are fine. The problem is air not moving between the two compartments, which is usually a frosted-over evaporator or a dead evaporator fan. That narrows the diagnosis a lot, and it is a very fixable problem.
If both sides are warm, go to check 2.
2. Is it actually getting power and set correctly?
Check the temperature setting. A dial bumped during cleaning, or a child pressing buttons on a touch panel, is more common than anyone admits. Fresh food should be at 37 to 40°F and the freezer at 0°F. Confirm the light comes on when you open the door and listen for the compressor hum at the back. If there is no light and no hum, check the outlet with a lamp and check the breaker.
3. Are the vents inside blocked?
Cold air enters the fresh-food side through a vent, usually at the back or top. A bag of bread or a tall bottle pushed against it will warm the whole compartment while the freezer stays fine. Clear the vent and give it a few hours.
4. Are the condenser coils packed with dust?
On most refrigerators the coils are underneath, behind a kick panel at the bottom front, or on the back. Dust, pet hair, and kitchen grease insulate them and the refrigerator cannot dump heat. Unplug it, pull the panel, and vacuum the coils with a brush attachment. If you have a dog or cat, do this twice a year. A refrigerator that was “running constantly and not keeping up” often comes back to life after this alone.
5. Is the condenser fan running?
While the kick panel is off and the refrigerator is plugged in and running, look for the small fan near the compressor. It should spin whenever the compressor runs. If the compressor hums and the fan is still, the fan motor is dead and the refrigerator will overheat and shut down on its overload. That is a straightforward part replacement for a technician.
6. Is the freezer heavily frosted?
A thick, even coat of frost on the back wall of the freezer means the defrost system has failed. The evaporator ices over, air cannot pass through it, and the fresh-food side warms up first. You can thaw it by unplugging the refrigerator for 24 hours with the doors open, and it will work again for a few days or weeks. That confirms the diagnosis. The real fix is replacing the defrost heater, thermostat, or control, which a technician can do in a single visit.
Call a technician when
- The compressor clicks on and off every few minutes and never runs long. That is a start relay or an overload, or a compressor that is failing.
- Both compartments are warm, the compressor runs, the coils are clean, and the fans spin. That points at the sealed system or the control board, which needs a tech with gauges.
- The refrigerator is under ten years old. Most repairs on a fridge that age make sense. On a 15-year-old unit, ask for the repair estimate and the price of a replacement at the same time.
In Anderson, Pendleton, Clemson, and across the Upstate, one call connects you with a local technician who handles refrigerators daily. Tell them what you found in the checks above and the diagnosis goes faster.