8 Reasons Why Your JennAir Refrigerator Is Not Cooling

A refrigerator that stops cooling properly is more than just an inconvenience; it can quickly become a costly problem. Spoiled food, wasted groceries, and potential appliance damage can add up super fast. So if your JennAir refrigerator isn’t maintaining the right temperature, finding the cause early can help save a lot of money and time.

JennAir refrigerators are generally known for their premium design and performance, but like any appliance, they can experience cooling issues over time.

This article covers eight of the most common reasons a JennAir refrigerator might stop cooling, plus practical troubleshooting tips to help you decide if it’s a DIY fix or time to call in a professional.

1. Dirty Condenser Coils

The condenser coils release heat from inside your refrigerator to the surrounding air. Over time, these coils collect dust, pet hair, and debris, which reduces their ability to dissipate heat efficiently. When this happens, the refrigerator works harder and may struggle to stay cold.

Depending on your JennAir model, the condenser coils are located either behind the refrigerator or underneath it.

How to fix it:

1. Unplug the refrigerator
2. Use a coil brush or vacuum with a brush attachment
3. Gently clean all visible dust and debris

Pro tip: Clean condenser coils every 6 months, especially if you have pets. This simple maintenance step prevents many cooling problems before they start.

2. Faulty Evaporator Fan Motor

The evaporator fan circulates cold air from the freezer into both the freezer and fresh food compartments. If this fan fails, the freezer may still feel cold while the refrigerator section becomes warm.

Common signs include:

• No airflow in the fridge section
• Grinding or squealing noises
• The fan stops spinning when the freezer door is closed

How to diagnose it:

1. Open the freezer door and listen for the fan
2. Press the door switch to see if the fan starts

If the fan doesn’t run or sounds abnormal, the evaporator fan motor likely needs to be replaced. This repair is usually best handled by a technician unless you’re experienced with appliance repairs.

3. Defective Start Relay

The start relay provides power to the compressor at startup. When it fails, the compressor may:

• Click repeatedly without starting
• Fail to run at all
• Cause intermittent cooling

Quick test:

1. Remove the start relay
2. Shake it gently. If it rattles, it’s likely defective.

You can also test it with a multimeter. Start relays are relatively inexpensive and often replaced, making this a worthwhile fix if identified early.

4. Malfunctioning Compressor

The compressor is the heart of your refrigerator’s cooling system, circulating refrigerant through the coils. While compressors are built to last, they can fail due to age, electrical issues, or overheating.

Signs of a failing compressor include:

• Loud humming or clicking noises
• The compressor is running constantly without cooling
• Compressor not running at all

If the compressor feels very hot or repeatedly clicks on and off, it may be failing. Unfortunately, compressor replacement is expensive, and in many cases, replacing the refrigerator may be more cost-effective.

5. Blocked Air Vents

JennAir refrigerators rely on internal air vents to move cold air from the freezer to the refrigerator section. If these vents are blocked by food containers, ice buildup, or debris, airflow becomes restricted.

Common symptoms:

• The freezer is cold, the fridge is warm
• Uneven temperatures inside the refrigerator

How to fix it:

1. Locate air vents in both compartments
2. Remove items blocking airflow
3. Avoid overpacking shelves

Also, avoid placing warm food directly near vents, as this can cause condensation and frost buildup.

6. Damaged or Worn Door Seals

Door seals (gaskets) create an airtight barrier that keeps cold air inside. Over time, they can become dirty, cracked, warped, or loose, allowing warm air to enter.

How to check: 

• Close the door on a dollar bill
• If it slides out easily, the seal isn’t tight enough

How to fix: 

1. Clean seals with warm, soapy water
2. Inspect for visible cracks or gaps
3. Replace damaged gaskets if needed

Replacing door seals is relatively affordable and can dramatically improve cooling efficiency.

7. Thermostat Control Problems

The thermostat controls when the compressor turns on based on the internal temperature. If it malfunctions, the refrigerator may not cool properly, even if other components are working.

First, confirm the settings:

Ideal refrigerator temperature: 37-40°F (3-4°C)

If settings are correct:

1. Adjust the thermostat slightly
2. Listen for a clicking sound

No click or inconsistent cooling may indicate a failed thermostat, which usually requires replacement.

8. Frost Buildup on Evaporator Coils

Excessive frost on evaporator coils restricts airflow and prevents proper cooling. This usually points to a problem with the defrost system, which includes:

• Defrost heater
• Defrost thermostat
• Defrost timer or control board

Here’s a temporary fix: 

1. Unplug the refrigerator
2. Leave doors open for several hours to thoroughly defrost

If frost returns quickly, a defrost component has failed and will need professional repair to prevent recurring issues.

When Professional Help Is Needed

While cleaning coils, checking vents, and inspecting door seals are DIY-friendly, you should call a technician if the issue involves:

• Electrical components
• Compressor failure
• Refrigerant system problems

JennAir refrigerators are premium appliances, and improper repairs can cause further damage if mishandled.

Final Thoughts

When your JennAir refrigerator stops cooling, don’t wait. Act fast to save your food and avoid further issues. Start with the easy stuff like cleaning coils, checking vents, and inspecting door seals, as these fixes should resolve most problems.

If basic troubleshooting doesn’t work, it’s best to call a professional, especially if there are problems with the compressor or electrical system, as attempting DIY repairs could make things worse.