Refrigerator Not Keeping Temperature: Fix It Yourself

Quick answer

If your refrigerator isn't keeping temperature, first check the condenser coils for dust, ensure the door seals tightly, and verify the thermostat settings. If these don't resolve the issue, the compressor or temperature control board may need attention.

Confirm the symptom

• Fridge compartment is warmer than normal
• Food is spoiling faster than usual
• Freezer is working but fridge is not cold
• Refrigerator is running constantly
• Interior temperature is above 40°F

Tools and prep

• Screwdrivers (flathead and Phillips)
• Thermometer (food-safe)
• Soft cloth or brush for cleaning
• Work gloves
• Owner's manual or model number for reference
• Flashlight for inspecting coils

Step-by-step troubleshooting

1. Check Condenser Coils
   Do: Locate and clean the condenser coils (usually at the back or bottom of the fridge).
   Observe: Dust or debris buildup on the coils.
   Means: Dirty coils reduce cooling efficiency.
   Next: Clean coils thoroughly and wait 24 hours to see if temperature improves.
2. Inspect Door Seal
   Do: Close the door on a dollar bill and try to pull it out.
   Observe: If the bill slides out easily, the seal is damaged.
   Means: A faulty seal allows cold air to escape.
   Next: Replace the door gasket if the seal is compromised.
3. Verify Thermostat Settings
   Do: Check the thermostat settings on both the fridge and freezer compartments.
   Observe: Settings are too high or set to 'off'.
   Means: Incorrect settings prevent proper cooling.
   Next: Adjust the thermostat to the recommended temperature (34–40°F for fridge, 0°F for freezer).
4. Test Temperature Inside
   Do: Place a thermometer in the fridge and freezer compartments.
   Observe: Temperatures are above 40°F in the fridge or above 0°F in the freezer.
   Means: The fridge is not maintaining proper cooling.
   Next: Proceed to check the evaporator coils and defrost system.
5. Check for Frost Buildup
   Do: Open the freezer and inspect the back wall for excessive frost.
   Observe: More than 1/4 inch of ice buildup.
   Means: A malfunctioning defrost system is causing ice accumulation.
   Next: Defrost the freezer manually and check the defrost timer or heater if the issue persists.
6. Listen for Compressor Noise
   Do: Listen near the back or bottom of the fridge for a humming or clicking sound when the fridge is plugged in.
   Observe: No noise or unusual sounds from the compressor.
   Means: The compressor may be faulty or not receiving power.
   Next: Check the power supply and consider professional repair if the compressor is not working.
7. Inspect Evaporator Coils
   Do: Remove the freezer compartment panel to access the evaporator coils.
   Observe: Coils are frosted over or not cold to the touch.
   Means: A defrost system issue or refrigerant leak may be present.
   Next: If coils are frosted, check the defrost heater or timer. If coils are warm but not cold, there may be a refrigerant leak.
8. Check for Airflow Blockage
   Do: Ensure nothing is blocking the vents inside the fridge or freezer.
   Observe: Items are obstructing the vents.
   Means: Poor airflow reduces cooling efficiency.
   Next: Rearrange items to allow proper airflow and monitor temperature changes.

Common causes

Parts matching

Common parts needed for a refrigerator not keeping temperature include:

• Door gasket for sealing the door
• Defrost timer or heater for resolving frost buildup
• Thermostat for temperature regulation
• Compressor or refrigerant recharge for major cooling issues
• Control board for advanced temperature regulation issues

Always refer to your refrigerator's model number when purchasing replacement parts to ensure compatibility.

When to call a professional

• The compressor is completely silent and unresponsive
• You smell refrigerant or notice a refrigerant leak
• The fridge is still not cooling after cleaning coils, checking the door seal, and verifying settings
• The defrost system is damaged and requires replacement of internal components
• The temperature control board is suspected to be faulty
• You are unsure about diagnosing or replacing internal parts like the compressor or control board

FAQ

Related guides

• refrigerator temperature too high
• refrigerator not cooling after power outage

Related searches: fridge not cooling properly, refrigerator running but not cold, refrigerator condenser coils cleaning, door seal replacement for fridge, defrost timer not working, refrigerator thermostat issues, refrigerator compressor not working, refrigerator temperature control problems, refrigerator keeps warm but not cold, refrigerator not maintaining cold temperature