The freezer fan starting and stopping is a common issue caused by a faulty fan motor or thermostat. Freezer fans are essential for circulating cool air and maintaining a consistent temperature inside the appliance.

However, if you’ve noticed that your freezer fan starts and then abruptly stops, it can be a cause for concern. A malfunctioning freezer fan may lead to temperature fluctuations and potential spoilage of your frozen goods. Understanding the reasons behind this issue is crucial for troubleshooting and resolving the problem.

We will explore the possible causes of a freezer fan starting and stopping, provide some simple troubleshooting steps, and offer guidance on when it’s advisable to seek professional assistance. By the end, you’ll have a clearer understanding of why your freezer fan might behave erratically and potential solutions to rectify the issue.

Understanding The Freezer Fan Issue

A freezer fan that starts and then stops can indicate several common problems. Firstly, the fan motor may be faulty, causing it to stop working intermittently. Another possibility is that the fan blade might be obstructed by ice buildup, preventing it from running smoothly. Similarly, accumulated dirt or debris on the fan can impede its operation and cause it to stop abruptly. It is crucial to troubleshoot and fix these issues promptly to avoid further damage to the freezer.

By maintaining a clean and well-functioning freezer fan, you can ensure proper airflow and temperature distribution within your freezer. Regularly cleaning the fan and defrosting the freezer can prevent ice buildup and obstructions. If the fan motor is faulty, it may need to be replaced to restore its functionality. It is recommended to consult a professional technician if you are unsure or uncomfortable with handling these repairs yourself.

Checking For Power Supply Problems

When a freezer fan starts and then stops, it is often an indication of power supply problems. To troubleshoot this issue, first inspect the power cord and outlet. Ensure that the power cord is securely plugged into the outlet and that there are no visible signs of damage. If the cord appears damaged, it may need to be replaced.

Next, test the continuity of the power supply using a multimeter. Turn off the power to the freezer and disconnect the power cord. Set the multimeter to the AC voltage setting and place one probe into the power outlet and the other probe onto the exposed prongs of the power cord. If the meter reads a consistent voltage, the power supply is functioning correctly.

If the power supply is not the issue, further troubleshooting may be required to identify the cause of the freezer fan starting and stopping. It is recommended to consult a professional technician for assistance.

Examining The Fan Motor

The freezer fan starting and stopping can be a frustrating issue. One potential cause could be a problem with the fan motor. To determine if this is the issue, start by examining the motor for any visible damage or signs of wear. Inspect the fan blades and shaft for any obstructions or debris that could be causing the motor to stop. Additionally, check the wiring connections to ensure they are secure and not loose. If everything appears to be in good condition, it may be necessary to test the motor using a multimeter to measure the voltage and resistance. This can help identify any potential electrical issues that could be causing the fan motor to stop. If you are unfamiliar with these diagnostic procedures, it is recommended to consult a professional technician for assistance.

Cleaning And Clearing Obstructions

One common issue with freezer fans is that they may start and then stop abruptly. This can be due to various reasons, such as dust and debris accumulation or obstructions in the fan’s path. To resolve this issue, it is important to clean the fan thoroughly and clear any obstructions.

To begin with, remove the back panel of the freezer to access the fan. Gently brush away any dust and debris that may have collected on the blades and around the motor. Use a can of compressed air or a vacuum to carefully remove any stubborn dust particles.

If the fan is still not functioning properly, check for any obstructions in its path. Sometimes, food items or ice build-up can impede the fan’s rotation. Inspect the fan’s surroundings and remove any objects that may be blocking its movement.

By cleaning the fan and eliminating obstructions, you can ensure that it operates smoothly and effectively, preventing it from starting and stopping abruptly.

Testing The Fan Motor Capacitor

Testing the fan motor capacitor is an essential step in diagnosing why your freezer fan starts and then stops. The capacitor plays a crucial role in the operation of the fan motor, as it helps provide the necessary electrical energy to start the motor and keep it running smoothly. One way to test the capacitance of the capacitor is by using a multimeter. A multimeter allows you to measure the capacitor’s capacitance and verify if it is within the specified range. To perform the test, disconnect the power source, discharge the capacitor, and then set your multimeter to the capacitance testing mode. Connect the multimeter’s leads to the capacitor’s terminals and observe the reading. If the reading is significantly lower or higher than the specified range, it indicates a faulty capacitor that needs to be replaced.

Assessing The Temperature Control Thermostat

The temperature control thermostat is a crucial component of the freezer fan, responsible for maintaining the desired temperature. To ensure its proper functioning, start by verifying that the thermostat is operational. First, check if the power supply is uninterrupted. Next, listen for any clicking sounds as you turn the thermostat knob. This indicates that the thermostat is engaging and functioning correctly. Additionally, inspect the wiring for any signs of damage or loose connections.

If the thermostat fails to function correctly, it may need adjustment or replacement. Begin by consulting the user manual for specific instructions on adjusting or calibrating the thermostat. Follow the provided steps accurately to avoid further complications. If adjustment fails to resolve the issue, consider replacing the thermostat entirely with a new one that is compatible with the freezer model. Ensure that the replacement thermostat matches the original specifications.

Checking The Defrost Timer

One common issue with freezer fans is that they often start but then stop. If you’re experiencing this problem, one component to check is the defrost timer. The defrost timer is an essential part of the freezer’s cooling system, as it controls the automatic defrost cycle. Understanding its role can help diagnose the issue.

To test the defrost timer for continuity, start by unplugging the freezer and locating the timer, usually found near the compressor. Remove any covers or housing to access the timer. Use a multimeter to test for continuity across the timer’s terminals. If there is no continuity, the timer is likely faulty and needs to be replaced.

Replacing the defrost timer involves disconnecting the old one and connecting the new one in its place. Refer to the freezer’s manual or search online for specific instructions on replacing the defrost timer for your make and model.

Inspecting The Freezer Door Switch

Inspecting the freezer door switch is crucial if your freezer fan starts and then stops. This simple inspection can help determine and resolve the issue, ensuring proper cooling and functionality of your freezer.

Freezer Fan Starts Then Stops

Identifying Potential Issues With The Door Switch

When your freezer fan starts and then stops, one potential cause could be a malfunctioning door switch. The door switch is responsible for activating the fan when you open the freezer door. If there are issues with the switch, it may fail to properly engage the fan, resulting in the frequent starting and stopping.

To determine if the door switch is the culprit, you can test it for continuity. Continuity refers to the presence of an unbroken pathway for the electrical current. Begin by disconnecting the freezer from the power source. Locate the door switch, which is typically found near the top of the freezer and is activated when the door is closed.

Using a multimeter set to the continuity mode, touch the probes to the terminals of the door switch. If the multimeter produces a continuous tone or displays a low resistance reading, the switch is functional. On the other hand, if there is no tone or the resistance reading is high, it indicates a faulty switch that needs to be replaced.

Potential Issue Solution
Defective door switch Replace the faulty switch with a new one
Loose or damaged wiring Tighten any loose connections or repair damaged wiring
Other electrical problems Consult a professional technician for further inspection and repair

Evaluating The Fan Motor Relay

Evaluating the fan motor relay is crucial when dealing with a situation where the freezer fan starts then stops. Understanding the role of the relay in controlling the fan is essential. The relay acts as a switch, allowing the fan motor to receive power. If the relay is faulty or not functioning properly, it can lead to the fan starting and then stopping abruptly.

To test the relay for proper functioning, start by unplugging the freezer and locating the relay, usually found near the compressor. Carefully remove the relay and inspect it for any signs of damage or burnt wires.

Using a multimeter, set it to the Ohm function and place the probes on the relay’s terminals. A reading of zero or infinite resistance indicates a faulty relay that needs replacement. Replace the relay with a compatible one if necessary, ensuring a proper fit.

By evaluating the fan motor relay and testing for proper functioning, you can troubleshoot the issue of the freezer fan starting and stopping intermittently. Regular inspection and maintenance of the relay can prevent further problems and ensure a well-functioning freezer.

Considering Potential Wiring Problems

When a freezer fan starts and then stops, it can be frustrating and concerning. One potential cause for this issue could be wiring problems. To determine if wiring is the culprit, inspect the connections for any signs of looseness or damage. This includes checking for loose wire nuts, frayed or exposed wires, or corroded terminals. If any issues are found, repairing or replacing the faulty wires may be necessary.

It is important to ensure that all wiring connections are secure and properly insulated to prevent interruptions in the fan’s operation. Taking the time to carefully inspect and address any wiring problems can help resolve the issue and keep the freezer’s fan running smoothly.

Expert Advice: When To Seek Professional Help

If your freezer fan starts and then stops, it can be a frustrating issue. However, before calling a professional, there are a few things you can check. First, ensure that there aren’t any obstructions blocking the fan blades. Clean away any dirt or debris that may be causing the issue. Next, check the fan motor for any signs of damage or wear. If the motor is faulty, it may need to be replaced. Additionally, make sure that the freezer temperature is set correctly, as a higher temperature may cause the fan to stop running. If you’ve gone through these troubleshooting steps and the issue persists, it’s time to seek professional assistance. Finding a reliable appliance repair technician can help diagnose the problem accurately and provide the necessary repairs.

Freezer Fan Starts Then Stops: How to Troubleshoot and Fix the Issue


Maintaining The Freezer Fan For Longevity

  • Unplug the freezer and remove any stored items.
  • Dust and dirt can accumulate on the fan blades, causing it to malfunction. Clean the fan blades with a soft brush or cloth.
  • Check for any loose or damaged fan blades. Tighten or replace them if necessary.
  • Keep the freezer away from direct sunlight and heat sources.
  • Ensure proper ventilation by allowing sufficient space around the freezer.
  • Regularly defrost the freezer to prevent ice build-up, which can impact the fan’s performance.
  • Use a freezer thermometer to maintain the ideal temperature.
  • Inspect the fan motor and wiring for any signs of damage or wear and tear. Replace faulty components immediately.
  • Consider scheduling regular professional maintenance to keep the freezer fan in optimal condition.


To troubleshoot a freezer fan that starts then stops, it is important to consider various factors. First, check for any obstructions or debris that may be hindering the fan’s movement. Next, inspect the fan motor for any signs of damage or malfunction.

If the issue persists, it may be necessary to consult a professional technician for further assistance. Remember, regular maintenance and cleaning can help prevent such problems in the future, ensuring the efficient operation of your freezer.

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