A Kenmore refrigerator that isn’t cooling properly is a serious problem — food spoils quickly, and the issue can compound if left unaddressed. This guide walks through the most common causes, from simple fixes you can check yourself to problems requiring professional repair.
Step 1: Check the Basics
- Temperature settings: Verify the temperature controls haven’t been accidentally changed. The fresh food section should be set to 37°F and the freezer to 0°F.
- Door seals: Close the refrigerator door on a piece of paper. If you can pull the paper out easily, the gasket is worn and needs replacement.
- Clearance: Ensure there is at least 1 inch of clearance on all sides and top of the refrigerator for proper airflow.
- Location: Refrigerators in areas above 90°F (such as garages in summer) will struggle to maintain temperature.
Step 2: Check the Condenser Coils
Dirty condenser coils are the most common cause of poor cooling. These coils (located at the back or bottom of the refrigerator) dissipate heat from the refrigerant. When coated with dust and pet hair, they can’t release heat effectively, causing the compressor to work harder and cool less.
How to clean: Unplug the refrigerator. Locate the coils (behind the kick plate at the bottom or at the back). Use a coil brush or vacuum with a brush attachment to remove dust buildup. Plug back in and allow 24 hours to reach full temperature.
Step 3: Listen for the Evaporator Fan
Open the freezer door and press the light switch manually. You should hear the evaporator fan running. If the fan is silent, it may have failed — this will cause both the freezer and refrigerator to warm up as cold air cannot circulate.
Step 4: Check for Ice Buildup on Evaporator Coils
If the evaporator fan is running but the refrigerator is still warm, the evaporator coils may be completely frozen over due to a defrost system failure. Signs include: frost visible on the back wall of the freezer, freezer cold but refrigerator section warm.
To test: Manually defrost the freezer (unplug for 24–48 hours with doors open). If cooling returns to normal but the problem recurs within a few days, the defrost heater, thermostat, or control board requires professional repair.
Step 5: Listen to the Compressor
The compressor is the heart of the cooling system. It should run in cycles, humming for 10–20 minutes, then resting. If it never runs, always runs, makes a clicking sound and stops, or makes a loud knocking noise, it may be failing. Compressor issues require professional diagnosis and repair.
When to Call Our Kenmore Technicians
If you’ve checked the above and your Kenmore refrigerator is still not cooling, call our certified technicians. We’ll diagnose the issue accurately and provide an upfront estimate before any repair work begins. Common professional repairs for this symptom include defrost system repair, evaporator fan replacement, start relay replacement, and compressor diagnosis.