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Refrigerator Not Cooling: Causes and Fixes

A fridge that runs but won't cool usually has dirty condenser coils, a failed evaporator fan, or an iced-over evaporator from a defrost-system fault. Clean the coils first (the most common and easiest fix), then check whether the evaporator fan is running and whether the back of the freezer is iced up.

What to Check First

  1. 1

    Clean the condenser coils (behind the lower kick plate or on the back) — dust-clogged coils are the #1 cause of weak cooling.

  2. 2

    Confirm the condenser fan (near the compressor) spins — heat won't shed if it's stalled.

  3. 3

    Listen for the evaporator fan inside the freezer; open the door and press the light switch to keep it running.

  4. 4

    Check the freezer back panel for ice buildup — heavy frost means a defrost-system fault (heater, sensor, or control).

  5. 5

    Verify the temperature setting wasn't bumped and the vents between freezer and fridge aren't blocked by food.

Error Codes for This Problem, by Brand

If your refrigerator is showing an error code along with this symptom, find your brand below — each code links to its full fix guide.

Frequently Asked Questions

Why is my fridge running but not cold? +
The most common causes are dirty condenser coils, a stalled condenser or evaporator fan, or an iced-over evaporator from a defrost fault. Clean the coils first, then confirm both fans run and check for frost behind the freezer panel.
Why is my freezer cold but the fridge is warm? +
This classic split usually means the evaporator fan failed or the evaporator is iced over, so cold air isn't reaching the fridge compartment. Check the fan and look for frost behind the freezer back panel.
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