3 Reasons Why Your Kenmore Refrigerator Runs Constantly

A refrigerator that runs constantly is more than just annoying — it's costing you money on your energy bill and putting unnecessary wear on the compressor. With energy costs continuing to rise in 2025, a fridge that won't stop running can add significantly to your monthly expenses. If your Kenmore refrigerator won't stop running, here are the three most common reasons why.

1. Dirty Condenser Coils

The condenser coils dissipate heat as the refrigerant passes through them. When coils are covered in dust, pet hair, or debris, they can't release heat efficiently. This forces the compressor to run longer and harder to maintain the set temperature.

Fix: Unplug the refrigerator and locate the condenser coils (usually on the back or underneath). Use a coil brush or vacuum with a brush attachment to clean them thoroughly. This should be done every 6-12 months.

2. Faulty Door Gasket

The door gasket (seal) keeps cold air inside the refrigerator. If the gasket is torn, cracked, or not sealing properly, warm air leaks in and the compressor has to work overtime to keep things cool.

Fix: Inspect the gasket around the entire door. Close the door on a dollar bill — if it slides out easily, the seal is weak. Clean the gasket with warm soapy water. If it's damaged, it will need to be replaced.

3. Defrost System Problems

If the defrost system fails, frost builds up on the evaporator coils and restricts airflow. The compressor then runs continuously trying to compensate. Common defrost system failures include a faulty defrost timer, defrost heater, or defrost thermostat.

Fix: Defrost system repairs typically require a professional technician. If you notice frost buildup inside the freezer or on the back wall, this is likely the issue.

A refrigerator that runs constantly can significantly increase your energy bill and shorten the life of your appliance. If you need help diagnosing or fixing the problem, contact Greenville Appliance Repair today!