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.
Cause: The freezer may not be receiving power due to a blown fuse, tripped circuit breaker, or unplugged cord. Fix: Check the power supply, reset the breaker, replace fuses, or ensure the freezer is plugged in. Cause: Airflow can be obstructed by items stored too close to the vents.
Store an ice cube or two in a sealed plastic bag or small container in the freezer; a sealed bag/container is important so the ice cube doesn't evaporate and disappear. If the ice cube has melted down from its original shape, you'll know the power was off for an extended period of time.
Your refrigerator compressor is responsible for that humming sound. So, if the sound stops for good, or if the sound goes from faint to a constant or very loud humming noise that does not shut off, it may be a sign the compressor is broken or malfunctioning.
If the compressor fails, the freezer won't freeze; listen for the compressor hum, if absent, consult a refrigeration technician for repair.
Shutting off the power to the refrigerator will give all of its systems—including the compressor—time to reset. Power down your refrigerator by unplugging it from the wall or shutting off the circuit breaker connected to the fridge. Leave the unit unplugged for five to ten minutes.
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.
Reset your refrigerator: First, unplug it (or turn off the power at the circuit breaker), and then wait about five minutes for the electrical charge to clear out of it. Then, power it back on again.
Problems with the freezer's electronic control board, cold control thermostat, defrost timer, or compressor can all result in a freezer that does not run or runs improperly.
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.
For fast or quick freezing large amounts of food in an upright or chest freezer, turn the temperature control to THE HIGHEST SETTING (for example: 7 is the highest setting on many models) or in some older models press the yellow FAST FREEZE switch. Freezing is generally fast and efficient throughout the freezer.
The location of the reset button on your compressor can vary depending on the model and manufacturer. Typically, it is located on the motor or near the motor housing. Look for a small red or black button that is often labeled “reset.”
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.
Your compressor will usually last 8-10 years. If you start having issues with your compressor before this time frame, it might be worth looking into options for repair, but if it's hitting the average lifespan, it might be more worth it to replace entirely.
Reasons your freezer isn't freezing may include:
Crowding items. Frost buildup. Dirty condenser coils. Malfunctioning evaporator fan.
On average, they can last between 8-10 years, which still varies. There are many variables such as the type of compressor and maintenance schedules that can affect compressor failure rates.