Why Is My Refrigerator Not Cooling? 7 Common Causes

Published: April 19, 2026 · Written by SAVA's EPA-certified HVAC technician with 9 years of Chicago field experience.

A refrigerator that runs but doesn't cool is one of the most stressful appliance problems — food is spoiling and the clock is ticking. The good news: in most cases, the problem is fixable, and it's often a single component. Here are the 7 most common reasons a refrigerator stops cooling, starting with the simplest.

1. Dirty Condenser Coils

Condenser coils release heat from the refrigerant. When they're coated in dust and pet hair, they can't release heat efficiently — and the refrigerator runs warm. The coils are usually located on the back or underneath the unit. You can clean them yourself with a coil brush and vacuum. If the fridge cools again after cleaning, great. If not, there's another cause.

2. Faulty Evaporator Fan Motor

The evaporator fan circulates cold air from the freezer into the refrigerator section. If this motor fails, the freezer may stay cold but the fridge won't. Open the freezer door and press the door switch manually — you should hear the fan running. If you don't, the fan motor is likely failed and needs replacement.

3. Broken Thermostat or Temperature Control Board

If the thermostat isn't reading the temperature correctly, it won't tell the compressor to run often enough. Signs include the fridge being warmer than the set temperature while the compressor runs only occasionally. This is a parts swap that a technician can diagnose and fix in one visit.

4. Worn or Damaged Door Seals

A damaged door gasket lets warm room air in constantly. The fridge runs more but can't overcome the heat gain. Test yours: close the door on a dollar bill. If it slides out easily, the seal needs replacement. Door gaskets are one of the most affordable refrigerator repairs.

5. Overloaded or Overcrowded Fridge

This one is easy to miss. A refrigerator packed too tightly doesn't allow cold air to circulate. If your fridge is stuffed to capacity, remove some items and wait 24 hours. If temperatures recover, that was the problem — and the fix was free.

6. Low Refrigerant From a Leak

Refrigerant is the substance that actually absorbs heat and cools your food. If the system has a leak, refrigerant levels drop and cooling capacity decreases. Signs include frost patterns in unusual locations, oily residue near coils, or hissing sounds. Refrigerant issues require a certified technician — this is not a DIY fix.

7. Compressor Failure

The compressor is the heart of the cooling system. When it fails, the fridge completely stops cooling. Signs: the fridge hums but produces no cold, or you hear clicking as it tries and fails to start. Compressor replacement is the most expensive refrigerator repair — in older units, it may make more sense to replace the appliance. A technician can give you an honest assessment.

How Much Does Refrigerator Repair Cost?

Cost depends on the specific issue and parts needed — we walk you through what we found after the diagnostic and you approve before any work begins. As a general rule, if the unit is less than 10 years old, repair makes financial sense. According to the Association of Home Appliance Manufacturers (AHAM), the average refrigerator lifespan is 12–14 years.

Repair vs. Replace: How to Decide

Use this quick decision guide:

• Unit under 8 years old: Repair it
• Unit 8–12 years old, single-component failure: Repair likely still makes sense
• Unit over 12 years old OR compressor failed: Get a replacement quote and compare
• Multiple failures in the same year: The unit is declining — factor in that pattern

At SAVA, we give you an honest diagnosis before any repair. If replacement makes more sense, we'll tell you that directly.

Food Safety During a Refrigerator Failure

The USDA recommends that refrigerators stay at or below 40°F to keep food safe. Once temperatures exceed that level, the following timelines apply:

• Raw meat, poultry, seafood: unsafe after 2 hours above 40°F
• Leftovers, cooked dishes: unsafe after 2–4 hours
• Milk and dairy: begins to sour within 4–6 hours
• Fresh produce: generally lasts 6–12 hours before quality deteriorates

If you're not sure whether your fridge is cooling at all, use a digital thermometer to check. If it's above 45°F and the technician can't come same-day, transfer perishables to a cooler with ice or a neighbor's refrigerator.

Brands We Repair in Chicago

SAVA technicians service all major refrigerator brands including Samsung, LG, Whirlpool, GE, Frigidaire, Maytag, KitchenAid, Bosch, and Sub-Zero. We carry common parts for high-frequency repairs and can usually complete a same-day diagnosis and repair in a single visit.

When to Call a Repair Tech

If cleaning the coils doesn't fix it, or if you suspect a refrigerant leak or compressor issue — call a technician. Food safety starts at 40°F; once your fridge exceeds that, spoilage starts in 2–4 hours.

Frequently Asked Questions