What Should You Do When A Refrigerator Stops Working

ByJim Boslice Home & Kitchen

First, keep the doors closed to preserve the cold and check if the internal light or power indicator is on. Verify the circuit breaker hasn’t tripped and ensure the thermostat hasn’t been accidentally bumped to the “off” position.

If power is present, vacuum the condenser coils and check if the evaporator fan is running. These simple maintenance steps often resolve cooling issues without needing a professional repair technician.

We have all been there: you walk into the kitchen or your garage workshop, reach for a cold drink, and realize the air inside the fridge is lukewarm. It is a sinking feeling that usually brings visions of spoiled groceries and expensive repair bills.

Understanding what should you do when a refrigerator stops working can save you hundreds of dollars in service calls and prevent a total loss of your food. Most common fridge failures are actually simple fixes that a handy DIYer can handle with basic tools and a bit of patience.

This guide will walk you through a logical troubleshooting process, from the simplest power checks to more advanced mechanical diagnostics. I will help you identify when you can fix it yourself and when it is time to call in a professional technician.

Immediate Safety and Food Preservation Steps

Before you grab your screwdriver, you need to address the ticking clock of food safety. A closed refrigerator will keep food safe for about four hours without power, while a full freezer can maintain its temperature for 48 hours.

Keep the doors shut as much as possible while you troubleshoot the unit. Every time you open the door to check the temperature, you are letting out the precious cold air that is keeping your perishables from spoiling.

If you suspect the repair will take more than a few hours, move your high-risk items like meat, dairy, and eggs to a portable cooler with ice. For those of us with a dedicated beer fridge in the garage, this is the time to prioritize the steaks over the sodas.

Check the Power Source First

It sounds obvious, but many “broken” refrigerators are simply unplugged or have lost power. Look at the interior light; if it is off, you likely have an electrical issue rather than a mechanical failure.

Check the plug at the back of the unit to ensure it hasn’t wiggled loose from the vibrations of the compressor. In garage workshops, we often use GFCI outlets, which are notorious for tripping during power surges or high humidity.

If the outlet has no power, check your home’s main breaker panel for a tripped circuit. Reset the breaker by flipping it completely to the “off” position and then back to “on” to ensure a solid connection.

Step-by-Step: what should you do when a refrigerator stops working

If the lights are on but the compressor isn’t humming, you need to dive deeper into the mechanical components. Knowing what should you do when a refrigerator stops working starts with verifying the thermostat settings and the airflow around the unit.

Sometimes the thermostat dial gets bumped by a stray gallon of milk or a tool kit. Ensure the temperature is set to the recommended mid-range, usually around 37 degrees Fahrenheit for the fridge and 0 degrees for the freezer.

Listen for the sound of the fans; most modern fridges have two. One is the evaporator fan inside the freezer, and the other is the condenser fan located near the compressor at the bottom of the unit.

Inspect the Condenser Coils

One of the most common reasons a fridge stops cooling is a buildup of dust and pet hair on the condenser coils. These coils release heat from the refrigerant; if they are insulated by a layer of grime, the system will overheat.

Pull the refrigerator away from the wall and remove the bottom toe kick plate or the rear access panel. Use a coil brush or a vacuum with a narrow crevice tool to gently remove the debris from the black grid-like coils.

In a dusty environment like a woodworking shop or a garage, you should perform this cleaning every six months. A clean coil allows the compressor to run more efficiently and extends the overall life of your appliance.

Test the Door Gaskets

A failing door seal, or gasket, allows cold air to escape and warm, moist air to enter. This causes the cooling system to work overtime until it eventually burns out or frosts over the evaporator coils.

Perform the “dollar bill test” by closing the door on a crisp bill and trying to pull it out. If the bill slides out easily without resistance, your gasket is not sealing properly and likely needs to be cleaned or replaced.

Clean the gaskets with warm, soapy water to remove any sticky residue that might be preventing a tight seal. If the rubber is cracked or brittle, you can find replacement gaskets online that snap into place without specialized tools.

Troubleshooting the Evaporator Fan and Defrost System

If your freezer is cold but the refrigerator section is warm, you likely have an issue with airflow. The evaporator fan is responsible for pulling cold air across the coils and pushing it throughout the entire unit.

Open the freezer door and manually press the door switch to see if you can hear the fan start up. If you hear a grinding noise or nothing at all, the fan motor may be obstructed by ice or simply reached the end of its life.

Heavy frost buildup on the back wall of the freezer is a sign of a defrost system failure. This could be a bad defrost heater, a faulty timer, or a failed defrost thermostat that isn’t telling the heater to turn on.

Manually Defrosting the Unit

When the coils are completely encased in ice, air cannot pass through them, and the fridge will stop cooling. A quick way to test if this is the problem is to perform a manual defrost.

Unplug the unit, open the doors, and let it sit for 24 to 48 hours with towels on the floor to catch the melting ice. If the fridge works fine for a few days after being plugged back in, you know the defrost system is the culprit.

While the unit is empty, check the drain tube. A clogged drain can cause water to pool at the bottom of the fridge or freeze over the air vents, blocking the cooling path entirely.

Testing Electrical Components with a Multimeter

For the more advanced DIYer, knowing what should you do when a refrigerator stops working involves using a digital multimeter. This tool allows you to check for continuity in electrical parts to see if they are functional.

You can test the start relay, which is the small device plugged into the side of the compressor. If you shake the relay and it rattles like a box of matches, the internal ceramic disk is shattered and the part needs replacement.

Check the continuity of the defrost heater as well. If the multimeter shows an “open” circuit (no continuity), the heater is burnt out and cannot melt the frost off the evaporator coils during the defrost cycle.

Diagnosing the Compressor

The compressor is the heart of the refrigerator, and it is also the most expensive part to replace. If you hear a clicking sound every few minutes followed by silence, the compressor is trying to start but failing.

While a bad start relay can cause this, it can also indicate a stuck compressor. If you have replaced the relay and the unit still won’t stay running, the compressor has likely failed internally.

In most cases, a failed compressor on an older unit means it is time to go shopping for a new refrigerator. The cost of the part and the specialized labor required to weld the lines often exceeds the value of the appliance.

Environmental Factors in the Garage Workshop

If you are a garage tinkerer, you might notice your fridge acts up during the peak of summer or the dead of winter. Most residential refrigerators are designed to operate in controlled environments between 60 and 90 degrees Fahrenheit.

In a cold garage, the thermostat may never “call” for cooling because the ambient air is already cold. This causes the freezer section to thaw out because the compressor never turns on to maintain the sub-zero temperatures needed for frozen goods.

Conversely, in a hot workshop, the unit may struggle to shed heat. Ensure your garage fridge has at least two inches of clearance on all sides to allow for proper ventilation and prevent the compressor from overheating.

Using a Garage Kit

If your fridge stops working in the winter, you can install a garage heater kit. This is a small heating element that fits near the thermostat to “trick” the fridge into thinking the room is warmer than it is.

This simple modification keeps the compressor cycling even when the garage is freezing. It is a low-cost solution that prevents your frozen food from thawing out during a cold snap in the shop.

Always ensure any modifications are compatible with your specific model. Consult your owner’s manual or the manufacturer’s website before adding aftermarket heating elements to the control board.

When to Call a Professional Repair Technician

There are certain situations where what should you do when a refrigerator stops working involves picking up the phone rather than a wrench. Working with refrigerant gases requires specialized certification and equipment.

If you suspect a leak in the sealed system—indicated by an oily residue on the copper lines or a compressor that runs constantly without cooling—call a pro. Attempting to recharge the system yourself can be dangerous and is often illegal without a license.

Complex electronic control boards in high-end smart fridges can also be difficult to diagnose. If your fridge has a touchscreen and complex error codes, a technician with a diagnostic computer may be your best bet.

Evaluating Repair vs. Replacement

A good rule of thumb is the 50% rule. If the repair cost is more than half the price of a new unit, and the fridge is more than seven years old, it is usually better to replace it.

Newer models are significantly more energy-efficient, which can save you money on your monthly utility bills. This is especially true for older “energy hog” units often relegated to the garage or basement workshop.

Don’t forget to check if your unit is still under manufacturer warranty. Many brands offer five to ten years of coverage on the compressor specifically, even if the rest of the unit only has a one-year warranty.

Frequently Asked Questions About Refrigerator Repair

Why is my refrigerator running but not getting cold?

The most common cause is dirty condenser coils or a blocked evaporator fan. If the compressor is running, the system is trying to cool, but the heat isn’t being exchanged or the cold air isn’t being circulated properly.

How can I tell if my refrigerator compressor is bad?

A bad compressor often makes a loud humming noise or a repetitive clicking sound. If the compressor is extremely hot to the touch but the fridge is warm, it has likely failed or is struggling against a blockage.

Can a refrigerator be fixed if it leaks gas?

Yes, but it requires a certified technician to find the leak, repair the copper tubing, and recharge the system with the correct amount of refrigerant. This is rarely a cost-effective repair for older, entry-level models.

Is it worth fixing a 10-year-old refrigerator?

Usually, no. The average lifespan of a modern refrigerator is 10 to 14 years. At the decade mark, other components like the fan motors and seals are likely to fail soon, making a new purchase a wiser investment.

Final Thoughts for the DIY Homeowner

Mastering what should you do when a refrigerator stops working is all about staying calm and following a logical path. Most issues are caused by simple maintenance lapses like dirty coils or a tripped breaker rather than catastrophic mechanical failure.

By taking the time to clean your unit and check the basic electrical connections, you can extend the life of your appliances significantly. This proactive approach keeps your workshop drinks cold and your kitchen running smoothly without breaking the bank.

Keep your tools ready and your coils clean. Whether you are maintaining a high-end kitchen unit or a rugged garage fridge, a little DIY effort goes a long way in ensuring your home remains functional and efficient.

Jim Boslice
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