Why Your Refrigerator Isn’t Cooling Properly

Fitzs ApplianceJun 25, 2025
Why Your Refrigerator Isn’t Cooling Properly

There’s nothing more frustrating than reaching for a cold drink only to find it lukewarm. If your refrigerator is not cooling properly, your mind likely jumps to spoiled food and costly repairs. But before you panic, understand that many common fridge temperature issues have surprisingly simple fixes.

From dirty condenser coils to a faulty thermostat, we'll help you diagnose the problem. Let’s explore the most frequent reasons your appliance isn't getting cold enough and what you can do about it.

Common Signs Your Refrigerator Isn’t Cooling

If your fridge isn’t cooling like it should, here are some signs to watch for:

Warm inside: If you open your fridge and it feels warmer than usual, that’s a clear red flag. Your food should stay cool to stay fresh.

Food going bad quickly: If your leftovers or fresh groceries spoil faster than normal, it could mean your fridge isn’t cooling properly.

Strange noises: When the fridge’s motor or fan struggles, you might hear buzzing, clicking, or humming sounds.

Ice or frost buildup: Ice or frost in unusual spots inside the fridge or freezer can indicate a problem with the cooling system or the door seal.


Fridge Not Keeping Things Cold? Here's How to Troubleshoot It

If your fridge isn’t staying cold, don’t worry. Before calling a refrigerator repair expert, there are a few simple things you can check yourself.

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Key Fridge Parts to Check When It’s Not Cooling

  • Check the temperature settings: Make sure the fridge is set to the right temperature. Sometimes the dial or digital control gets bumped or changed by mistake.
  • Check the rubber gasket around the fridge door to make sure it’s sealing properly.
  • Clean the condenser coils: The coils (usually at the back or underneath the fridge) can get dusty or dirty.Keeping them clean helps your fridge stay cool more efficiently.
  • Make sure air can flow inside: Don’t overfill your fridge—air needs to move around inside to keep everything cool evenly.
  • Listen for strange sounds. Pay attention to any unusual buzzing or clicking sounds from the compressor or fan. These can be signs something isn’t working right.
  • Check the vents for blockages: Sometimes food or containers block the vents inside the fridge, stopping cold air from circulating properly.

To learn more about maintaining energy efficiency in your fridge, visit ENERGY STAR’s refrigerator page

Why Your Freezer’s Fine but the Fridge Isn’t Cooling

If your freezer is working fine but your fridge feels warm, you're not alone. This is a common issue in many households. Here's why it might be happening

Possible Causes:

  • Blocked Air Vents: The fridge and freezer use shared vents to circulate cold air. If those vents get blocked by food or ice buildup, the cold air can't reach the fridge the way it should.
  • Broken Evaporator Fan: This fan circulates cold air from the freezer section into the refrigerator. If it stops working, the freezer can stay cold, but the fridge may not cool properly.
  • Damaged Damper Control: The damper works like a small flap that allows cold air to move from the freezer into the fridge compartment.If it’s jammed or damaged, that cold air can’t get through, leaving your fridge warm.
  • Faulty Thermistor: The thermistor senses the temperature inside your fridge and tells the cooling system when to turn on.

Quick Checks You Can Do:

  • Inspect Air Vents: Move food away from the vents and remove any frost so air can circulate freely.
  • Listen for the Evaporator Fan: Open the freezer and press the door switch to test its function.
  • Test Door Seals: Use a piece of paper to test the door seals on both the fridge and freezer.
  • Double-Check Temperature Settings: Make sure the fridge is set to about 37°F (3°C).
  • Defrost the Freezer if Frosty: Excess frost can block airflow. Manually defrost the freezer to see if cooling improves.
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A freezer operating normally while the refrigerator section remains warm — a common issue caused by blocked vents or fan failure

How to Reset Your Fridge When It Stops Cooling

Sometimes, your refrigerator just needs a quick reset to start cooling again. It’s like restarting your phone.

When and Why a Reset Helps

If your fridge stops cooling, a reset can fix glitches or wrong temperature settings. It’s a good first step, especially after a power outage or surge.

General Steps to Reset Your Refrigerator

You don’t need to be a tech expert to reset your fridge. Just follow these simple steps:

  1. Unplug the Fridge: Unplug the fridge and leave it disconnected for 5 to 10 minutes to let the system completely power down.
  2. Plug It Back In: After waiting, plug the fridge back in. You might hear it kick back on as the compressor starts.
  3. Set the Temperature: Ensure your fridge is set to around 37°F (3°C) and your freezer to 0°F (-18°C) for optimal cooling
  4. Factory Reset (If Your Model Has It): Some modern fridges have a reset button or a digital reset option. Check your control panel or screen. If your model supports this, you can do a full factory reset — just like on a phone.

Model-Specific Reset Tips

Every refrigerator is different. For the best results, check your user manual (or search your model number online) for the exact reset instructions. Some models may require holding down buttons or pressing a reset switch inside the control panel.

Other Common Causes of Cooling Failure

If your fridge still isn’t cooling after checking the basics, there may be other issues. Here are a few common problems that can stop your fridge from cooling properly.

  • Faulty Thermostat: The thermostat is like the fridge’s thermostat at home—it tells the cooling system when to turn on or off. If it’s broken or acting up, the fridge might not get cold enough or might run too much.
  • Broken Compressor : The compressor is the fridge’s engine. If it isn’t working, your fridge just won’t be able to stay cold. This is usually a serious problem that needs a professional.
  • Defrost System Malfunction: Your fridge has a defrost system that melts away frost buildup. If this system breaks, ice can build up and block airflow, making the fridge warmer.
  • Control Board or Power Issues: Sometimes the electronic control board or wiring can glitch or fail, causing the fridge to stop cooling correctly. These issues usually require expert attention.
  • Overloaded Fridge Disrupting Airflow: Believe it or not, stuffing your fridge too full can block the airflow inside. When cold air can’t circulate properly, some parts don’t get cold enough.

Should You Repair Your Fridge Yourself or Hire an Expert?

Not every fridge problem means you need to call a technician. Sometimes, handling small fixes yourself can help you save both time and money. But other times, it’s best to leave it to the experts. Here’s how to tell the difference:

When You Can Fix It Yourself

  • Cleaning Coils: Dusty coils make your fridge work harder. Cleaning them is simple and can really help your fridge cool better.
  • Replacing Door Seals: If cold air is sneaking out because the door seal is worn or dirty, swapping it out or cleaning it is something you can easily do.
  • Resetting Temperature: Sometimes, doing it yourself can help you save both time and money.

When to Call a Professional

Certain problems need expert diagnosis and repair. Contact a technician if you notice:

  • Compressor Trouble: The compressor is like the engine of your fridge. If it starts to fail, it’s a job best left to a professional.
  • Refrigerant Leaks: Chemical smells or frost buildup may indicate a refrigerant leak, which requires professional handling.
  • Electrical or Control Board Problems: These issues are complex and potentially dangerous to fix on your own.
  • Unusual Sounds or Burning Smells: Strange noises or odors are warning signs—turn off the fridge and call a professional immediately.
  • Persistent Cooling Problems: If troubleshooting steps like checking seals, coils, and settings don’t work, it’s time to get expert help.
  • Leaks or Electrical Faults: Water pooling or flickering lights can signal leaks or wiring issues that require professional repair.
  • Warranty Considerations: If your fridge is under warranty, contacting the manufacturer’s service team is the best way to avoid voiding coverage.
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Appliance repair technician diagnosing fridge cooling issue

What to Expect During Service

When a technician arrives, they’ll diagnose the issue, explain the needed repairs, and provide a cost estimate before beginning any work.

Preventive Maintenance Tips to Avoid Future Cooling Problems

Keeping your fridge in good shape can help prevent cooling issues down the road.Here are a few simple tips you can follow:

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Fridge Maintenance Tips

  • Clean the Coils Regularly: When the coils are covered in dust and dirt, your fridge has to work extra hard to stay cool. Giving them a quick clean every few months can keep things running smoothly.
  • Don’t Overfill the Fridge: Stuffing your fridge too full blocks the airflow inside, so cold air can’t reach everything evenly. Make sure there’s enough space around your fridge so air can flow freely.
  • Keep the Doors Closed: Avoid leaving the fridge door open for extended periods to help maintain a steady temperature. Every time you open it, warm air sneaks in, making the fridge work harder to cool back down.
  • Replace Worn Door Gaskets: If the rubber gasket around your fridge door is damaged or loose, it can let cold air leak out. Replacing worn gaskets keeps the cold in and energy costs down.
  • Schedule Annual Professional Checks: A yearly checkup by a technician can catch small problems before they turn into big headaches.

Keep your fridge running efficiently by following expert tips on the Department of Energy's refrigeration page.

Frequently Asked Questions (FAQs)

Can a dirty coil prevent your fridge from keeping things cold?

Yes! When the coils get dirty or dusty, they can’t release heat properly, which makes your fridge work harder and cool less effectively.

How much time does a refrigerator need to cool down after being switched on?

Usually, it takes about 4 to 6 hours for a refrigerator to reach its ideal temperature after being plugged in or turned on. However, this can vary depending on the model and how full it is.

Is it worth fixing an old refrigerator?

It depends on what's wrong with the fridge and how old it is. If it’s a minor repair and the fridge is less than 10 years old, fixing it can save you money. But if it’s very old or has multiple issues, buying a new one might be better in the long run.

Can power surges affect refrigerator cooling?

Yes, power surges can damage the compressor or electrical components in your fridge, leading to cooling problems. Using a surge protector can help protect your refrigerator from power fluctuations.

Don’t Let a Warm Fridge Stress You Out

A refrigerator cooling problem can be frustrating, but many issues are easy to fix once you know what to check.

Spotting problems early is key. The sooner you notice an issue, the easier and cheaper it is to fix. It also helps avoid wasting food and money.

If you need help or want to skip the hassle, Fitz Appliance is here to help. We’ll get your refrigerator cooling properly again—fast, friendly, and reliable. We also repair washing machines and more. Whatever’s acting up, we’ve got you covered.