Why Your Refrigerator Is Running Constantly
Discover the most common reasons your refrigerator won't stop running and learn when you need professional appliance repair versus simple DIY fixes.
If you've noticed your refrigerator running non-stop, you're not alone. This is one of the most common appliance issues we see in Atlanta homes. While a constantly running fridge can spike your energy bills, it's also a warning sign that something needs attention.
The Basics: How Your Refrigerator Works
Before diving into problems, let's understand normal operation. Your refrigerator uses a compressor to circulate refrigerant through coils. When the interior temperature rises above the set point, the compressor kicks on to cool things down. Once the target temperature is reached, it cycles off.
A healthy refrigerator typically runs about 40-80% of the time, depending on factors like:
- Ambient room temperature
- How often you open the door
- The amount of food inside
- The age of the unit
Common Causes of Continuous Running
Dirty Condenser Coils
This is the number one culprit we encounter. The condenser coils, usually located at the bottom or back of your fridge, release heat from the refrigerant. When they're coated in dust and debris, heat transfer becomes inefficient.
The Fix: Unplug your refrigerator and use a vacuum with a brush attachment to clean the coils every six months. This simple maintenance step can dramatically improve efficiency.
Faulty Door Gaskets
The rubber seals around your refrigerator and freezer doors create an airtight barrier. When these gaskets crack, tear, or lose their magnetism, cold air escapes constantly.
Quick Test: Close the door on a dollar bill. If you can pull it out easily without resistance, your gasket needs replacing.
Thermostat Issues
A malfunctioning thermostat can fail to signal the compressor to shut off. You might notice your food freezing in the refrigerator section or inconsistent temperatures throughout.
If adjusting the temperature dial doesn't produce any change in how often the unit runs, the thermostat likely needs replacement.
Evaporator Fan Problems
The evaporator fan circulates cold air throughout the refrigerator. If it fails, the compressor works overtime trying to compensate for poor air circulation.
Signs of a bad evaporator fan:
- Unusual humming or clicking sounds
- Frost buildup in the freezer
- Warm spots in the refrigerator section
Low Refrigerant Levels
While less common, a refrigerant leak prevents your system from cooling efficiently. This is not a DIY fix—refrigerant handling requires professional certification and equipment.
When to Call a Professional
Some issues are best left to the experts. Contact us if you notice:
- Refrigerant leaks (oily residue near the compressor)
- Electrical problems or burning smells
- The compressor is hot to the touch
- Ice maker or water dispenser malfunctions
- Problems persist after basic troubleshooting
Preventive Maintenance Tips
Keep your refrigerator running efficiently with these habits:
- Keep it stocked — A full refrigerator retains cold better than an empty one
- Allow hot food to cool — Don't put hot containers directly in the fridge
- Check the temperature — Ideal settings are 37-40°F for the fridge and 0°F for the freezer
- Give it breathing room — Ensure 2-3 inches of clearance around the unit for proper ventilation
The Bottom Line
A constantly running refrigerator isn't just annoying—it's costing you money and could indicate a failing component. While some fixes are straightforward, others require professional diagnosis to prevent further damage.
If you're in the Atlanta metro area and your refrigerator is giving you trouble, contact Appliance Dean for same-day diagnostic service. We'll identify the problem and get your kitchen running smoothly again.