How to check if the freezer is not working?

Author: Dr. Adalberto Robel DVM  |  Last update: Thursday, October 30, 2025

The easiest way to diagnose a problem with your freezer's compressor is by listening for its routine humming sound. Pay attention to your freezer for at least 30 minutes. If the humming sound doesn't kick in within that time, the compressor may not be working correctly. Schedule a visit with a technician for more help.

How to tell if your freezer is not working?

Compressor Sounds: When the freezer is running, listen for a humming sound from the compressor. If it's silent or making clicking noises, it could indicate a problem. Fan Operation: Check if the interior fan is running. If not, it may be a sign of an issue. Ensure the thermostat is set to a cold enough temperature.

How do I reset my freezer?

Use the following steps to reset your freezer:
  1. Unplug your freezer from the outlet.
  2. Turn the freezer's control panel off by adjusting the controls to zero or using a shut-off switch (consult your manual for instructions).
  3. Wait a few minutes.
  4. Plug the freezer back in.

How do I know if my freezer died?

Signs that Your Freezer is Dying

Spoilage – A properly functional freezer will keep the foods in good condition for a long time. If the food starts rotting before its expiration date, the freezer isn't working efficiently and needs repairs.

What is the most common freezer problem?

1. Frost Buildup. One of the most prevalent issues with upright freezers is frost buildup. When frost accumulates on the freezer's interior walls or around the door seal, it can affect the appliance's efficiency and cause temperature fluctuations.

Freezer Isn't Freezing — Freezer Troubleshooting

How do you test a freezer?

Place a container filled with water in the freezer compartment. 2. As soon as the water has completely frozen, place a coin onto the surface of the ice. Now, if your freezer really is failing from time to time, over time the water in the container will thaw a little and the coin will gradually sink downwards.

How to fix freezer not freezing?

  1. Step 1: Check the setting controls. To be sure your appliance is set to the appropriate temperature, check your appliance's control settings. ...
  2. Step 2: Clear out the freezer shelves. ...
  3. Step 3: Clean the condenser coils. ...
  4. Step 4: Eliminate excess frost buildup.

How many years should a freezer last?

Freezers typically last anywhere from 12 to 20 years. Along with gas and electric ranges, freezers tend to be the longest-lasting kitchen appliances. But that's not a guarantee! Many factors influence how long freezers last, including maintenance and environmental factors.

Is food still good if the freezer stops working?

A full freezer will hold a safe temperature for approximately 48 hours (24 hours if it is half full and the door remains closed). Food may be safely refrozen if it still contains ice crystals or is at 40°F (4°C) or below, however, its quality may suffer.

Why is my freezer not making ice?

Several problems can interfere with making ice properly or dispensing ice. The ice maker or dispenser could be jammed or broken, a dirty water filter or kinked water line could be blocking water flow or the water inlet valve could be clogged or faulty.

Can you reset a freezer by unplugging it?

Turn off the refrigerator and freezer from the control panel. After unplugging the refrigerator, turn off the fridge and freezer using the control panel inside the fridge. To do so, set the controls to “zero" or switch them off entirely. Once you're done, you can plug your refrigerator back into the wall socket.

Can a freezer stop working but the fridge still works?

If your freezer stops cooling but the refrigerator compartment works, the freezer may have frost build-up or clogged venting preventing it from doing its job. Check the venting in the back of the freezer to make sure no items are resting against it, then examine the ice build-up inside the freezer.

What is the first thing to check when a refrigerator stops cooling?

Clear blocked air vents: Inspect the air vents inside the fridge and freezer compartments to ensure they are not obstructed by food or containers. Proper air circulation is vital for even cooling. Check the door seals: Inspect the rubber gaskets (door seals) around the refrigerator and freezer doors for damage.

How do I reset my freezer compressor?

Unplug the Refrigerator
  1. There may be whooshing or knocking noises, which is normal.
  2. Remain unplugged for 10 minutes.
  3. Plug the refrigerator in or turn on the circuit breaker.

How do you know when to replace your freezer?

  1. Your Fridge Freezer is Getting Old. ...
  2. Your Energy Bills are Too High. ...
  3. It's Not Getting Cold Enough. ...
  4. Food Spoils Before Its Use-By-Date. ...
  5. You've Noticed Some Condensation. ...
  6. You Have Excessive Frost Build-Up. ...
  7. It's Making Strange Noises. ...
  8. There's a Funny Smell.

How do you know if your freezer is not working properly?

The easiest way to diagnose a problem with your freezer's compressor is by listening for its routine humming sound. Pay attention to your freezer for at least 30 minutes. If the humming sound doesn't kick in within that time, the compressor may not be working correctly. Schedule a visit with a technician for more help.

What causes a freezer to stop?

One of the simplest reasons your freezer might not be freezing is incorrect temperature settings. It's easy to overlook and can easily be caused by accidental brushes against the control, but setting the temperature too high can prevent your freezer from doing its job.

What to do if your freezer dies?

Place heavy cardboard on top of packages of frozen food in each compartment of your freezer and place dry ice on top of the cardboard. Close the freezer and do not open it again until you need to replace the dry ice or the power comes back on.

How do I know if my freezer is dying?

No Ice Cubes Your icemaker requires a freezer temperature below 10 degrees Fahrenheit to reliably produce ice cubes. While your food may still be frozen above this temperature, a lack of ice cubes is often the first sign of a dying freezer.

Will a freezer work if the compressor is bad?

If the compressor fails, the freezer won't freeze; listen for the compressor hum, if absent, consult a refrigeration technician for repair.

Is it worth fixing an old freezer?

Older models are more prone to breakdowns and might require frequent repairs. In contrast, a relatively new freezer might still have plenty of life left, making repairs a more cost-effective solution. Generally, if your freezer is less than ten years old, repairing it might be worth considering.

Why would a freezer suddenly stop working?

Some causes may be simple, like crowding items or dirty condenser coils, and other causes may require professional repair, like a broken evaporator fan. To avoid losing your frozen meats, veggies, and leftovers to the thaw, check out these troubleshooting tips to help keep your freezer at the ideal temperature.

How do I know if my freezer compressor is working?

You Hear Unusual Noises

A hum or a slight buzz is typical, but if your refrigerator starts making strange or loud noises, the compressor might be struggling. Professional Repair Required: Compressors have numerous components, and diagnosing the source of the noise can be complicated.

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