• If you’ve noticed that your Samsung refrigerator isn’t keeping items cold, while the freezer seems to be working fine, you’re not alone. This issue can be frustrating and inconvenient, especially. Don’t worry; we’ve got you covered with some troubleshooting tips and potential solutions to get your refrigerator back in top-notch cooling condition, setting, chamber.

    When your fridge fails to cool but the freezer remains frosty, it could indicate a problem with the evaporator fan motor, a faulty defrost thermostat, or even blocked vents. We’ll delve into these common culprits, doors, and display and provide easy-to-follow steps for diagnosing and resolving them. Let’s troubleshoot this disparity together so that you can bid farewell to lukewarm refrigerated items, doors, and display once and for all.

    Understanding Samsung Fridge Cooling Issues

    According to appliance maker Samsung, a non-cooling refrigerator is not unusual. Moreover, you don’t have to call technical support when your unit won’t cool. That includes when the Samsung refrigerator not cooling but freezer is fine.

    A Samsung refrigerator won’t cool even though it freezes due to a faulty door gasket, warmer temperature, food overstuffing, icy evaporator coils, or dirty condenser coil. Other causes include a faulty evaporator fan motor, damper control, defrost system, thermistor, or temperature control board.

    So, do not overlook these probabilities as it’s most likely your Samsung refrigerator is warm because of one of them. In light of that, I’ll sort them starting with the most probable and the easiest to fix so that you can troubleshoot your unit more straightforwardly.

    Of course, the central focus will be on the diagnosis and repairs. So, whether you have a top freezer, bottom freezer, or any other Samsung model, these DIY troubleshooters should help you try to fix it before you can turn to a technician.  

    Let’s get into it!

    Samsung refrigerator not cooling but freezer is fine

    In a rush? See below the most likely reasons why a Samsung refrigerator is warm while its freezer compartment is typical cold:

    Quick Fixes for a Samsung Refrigerator Not Cooling But Freezer Is Fine

     Probable ExplanationQuick Fixes
    1.Faulty Door GasketClean the door gasket if dirty, dethaw it if it’s frosty, or replace it if its torn, broken, loose, or weathered
    2.Warm TemperatureSet your fridge’s temperature at 1-70C; if that’s not the case
    3.Food OverstuffingReduce your fridge’s overall food load but don’t understock
    4.Iced-Over Evaporator Coils Defrost the evaporator coils using hot air (blow dryer) and then replace the faulty defrost heater or sensor
    5.Dirt-Caked Condenser Coils Brush off the dirt with a condenser cleaning brush
    6.Bad Evaporator Fan Motor Replace the evaporator fan motor if its fan blade won’t turn
    7.Defective Damper ControlReplace the units damper control if it’s stuck or damaged
    8.Failing Defrost System Replace the defrost sensor/timer, thermostat, or control board, depending on what’s faulty
    9.Faulty Thermistor Test the thermistor for continuity and change it if it’s bad
    10Bad Temperature Control BoardReplace the temperature control board as your last resort

    Why Is My Samsung Refrigerator Not Cooling But Freezer Is Fine?

    Now, consider the discussed ten possibilities in the same order when your Samsung refrigerator warms up as its freezer is cold:

    1. The Refrigerator Door Gasket Could Be Faulty

    Unless the refrigerator door closes properly, cold air will leak outwards as warm air sneaks in. Once that happens, your Samsung refrigerator won’t cool. 

    Often, the refrigerator door doesn’t close well because of a faulty door seal (the rubber gasket on the door that creates a tight seal when you shut the fridge door).

    As far as a faulty seal/gasket goes, you can check if the seal is:

    • Torn or broken

    • Loose

    • Dirty

    • Frosty

    • Weathered


    Consider replacing your refrigerator door gasket if it’s torn, broken, weathered, or wobbly. However, you can try cleaning it if it’s dirty or blow warm air over it if it’s frosty, preferably with a blow dryer.

    why refrigerator is not cold but freezer is

    2. The Refrigerator Temperature Could Be Too High 

    According to Samsung, their refrigerator’s default fridge temperature is 30C (370F), while that of the freezing unit is -190C. 

    But overall, the fridge’s acceptable range is 1-7 0C while the freezer’s is -15 to -230C. If you observe the proper freezer temperature range and fail to comply with the fridge, the fridge will malfunction.

    In this case, the fridge won’t cool if the temperature is above 70C.


    Check the unit’s fridge setting to ensure it’s 1-70C. If it’s not, then adjust it appropriately. Just locate the fridge’s temperature buttons and press them and if you have a Family Hub unit, use the ‘Fridge Manager’ Samsung widget to adjust the temperature.

    3. You Could Be Overstuffing the Refrigerator with Food

    If the problem is not a faulty door seal or warmer temperature setting, it could be food overloading. Though it’s tempting to stuff every food you’ve in the fridge for prolonged storage, Samsung advises against it.

    If the food containers are packed tightly, they block the unit’s air vents. Once that happens, it hampers good cold airflow across the fridge, resulting in no cooling.


    Open up your Samsung refrigerator to check for potential food overstuffing. If that’s the case, reduce the food load and avoid piling up or stacking the containers closely to each other. 

    4. The Evaporator Coils Could Be Iced-Over

    Sometimes, the evaporator coils quickly accumulate ice when the defrost heater fails to turn on and melt it away. 

    Of course, the defrost heater won’t turn when it’s defective or the defrost sensor is. Sadly, if the evaporator coils are iced-over, airflow becomes restricted, and your Samsung refrigerator won’t cool things. 


    Inspect the evaporator coils for possible icing over. If there’s too much ice caking, consider checking the defrost heater or defrost sensor.

    Test them using a multimeter If any of the two components doesn’t show continuity, replace it. Meanwhile, blow hot air over your evaporator coils to defrost them.

    5. The Condenser Coils Could Be Excessively Dirty

    While you have to worry about ice caking when it comes to the evaporator coils, you have to worry about dirt caking when it comes to the condenser coils. 

    Over time, the condenser coils amass dirt that clogs them and prevents them from doing their job (heat dissipation).

    Generally, the refrigerator won’t cool if these coils don’t dissipate the produced heat. So, they are worth inspecting for dirt caking.


    Turn off the refrigerator (preferably unplug it) and remove the rear panel covering the condenser coils. If the condenser coils are filthy, brush the excess dirt off with a condenser coil brush before restarting the fridge.

    why is my samsung fridge freezer not cooling

    6. The Evaporator Fan Motor Could Be Bad

    If your evaporator fan motor has an issue that prevents it from running, your refrigerator won’t cool. Reason? The motor’s job is to push cold air and re-distribute it above the evaporator coils. 

    So, its malfunctioning means that the evaporator coils will fail to circulate cold air, resulting in a warm fridge


    Test the evaporator fan motor to ensure it’s working correctly. Just try turning its fan blade manually while the unit is unplugged. If the blade won’t turn, the evaporator fan motor is bad and will therefore need a replacement.

    Other Possible Explanations For Samsung Refrigerator Not Cooling But Freezer Working Fine

    7. The Damper Control Could Be Defective

    A defective damper control could be why you have a warmer Samsung refrigerator. This little door-like feature opens and closes systematically to regulate the amount of cold airflow in and out of the fridge. 

    If it’s faulty, which is likely to be the case, if it’s stuck or damaged, it won’t open up to allow cold air to flow to the fridge. As a consequence, the refrigerator will fail to cool.


    Inspect the damper control. If it’s stuck, try to free it. But if it doesn’t or it looks damaged, replace it.

    8. The Defrost System Might Be Failing

    Without a proper defrost system, ice will take over the evaporator coils and make the fridge warmer instead of cold. So, this is an important consideration. In particular, check for a fault on any of these three components.

    • Defrost sensor/timer – If the defrost sensor or timer is faulty, the heater won’t turn. Thus, it won’t melt away the accumulating ice

    • Defrost thermostat – If the thermostat is faulty, it’s unable to provide the defrost heater with adequate power to melt the accumulating ice. 

    • Defrost control board – If ice still forms over the condenser coils after verifying that the problem is neither the defrost sensor nor the heater, it’s likely to be the defrost control board.


    Test the defrost thermostat and sensor/timer with a multimeter. If any of the parts fail to display continuity, replace them. But if both are okay but frost won’t stop forming over the condenser coils, replace the defrost control board.

    9. The Thermistor Could Be Malfunctioning

    With the thermistor’s job being temperature monitoring, it’s generally worth looking at. This temperature monitor monitors the temperature throughout the fridge and relays the readings to the control board, which regulates the evaporator fan and the fridge compressor.

    If it’s faulty, all that won’t occur, translating to zero cooling. 


    Test the thermistors continuity level using a multimeter and replace it if it fails the test.

    why is my samsung fridge freezer not freezing

    10. A Possible Bad Temperature Control Board

    Your unit’s evaporator and condenser fan motors plus the compressor rely on the temperature control board for voltage. If the control board is faulty, the components won’t have any voltage to run, making it impossible for the fridge to cool things. 


    A defective temperature control board needs replacing. However, don’t be in haste to replace it until you get the go-ahead from an expert Samsung technician. You should consider its replacement last. 

    People Also Ask

    1. How Do I Fix My Refrigerator Not Cooling But the Freezer Is Fine?

    Check for possible icing on the evaporator coils, dirt-caking on the condenser coils, or warmer fridge temperature (above 70C) if your fridge won’t cool. In this case, defrost the evaporator coils, clean the condenser coils or adjust the fridge temperature to 1-70C, depending on the problem.

    2. How Do I Reset My Samsung Refrigerator Not Cooling?

    You can reset your Samsung refrigerator by unplugging it or turning off its circuit breaker for about 5 minutes. If it doesn’t, reset it using the manual when you power it back.

    3. What Would Cause a Samsung Refrigerator to Stop Getting Cold?

    Several things could cause a Samsung refrigerator to stop getting cold. They include a bad evaporator fan motor, fridge food overload, dirty condenser coils, iced-over evaporator coils, or faulty door seal.

    Closing Thought On Samsung Refrigerator Not Cooling But Freezer Is Fine!

    Generally, checking your Samsung unit’s door seal for fault, temperature setting, food load for overstuffing, and evaporator coils for icing over is recommendable when it won’t cool. 

    Don’t forget, however, issues like dirt-caked condenser coils or a defective evaporator fan motor, defrost system, damper control, temperature control board, or thermistor.

    Also Read:

    The freezer is designed to maintain a proper temperature for food storage. It operates with a separate cooling system, ensuring efficient cooling technology specifically for the freezer compartment. This means that your frozen goods should remain solid and well-preserved.

    For instance, if you place ice cream or frozen vegetables in the freezer, they should stay frozen without any signs of thawing or melting. If there are issues with the freezer’s functionality, such as items not freezing properly, this could indicate a problem within the unit’s cooling system.

    Ventilation System Blockages

    Ice Accumulation

    When ice builds up in the freezer, it can affect the refrigerator’s cooling. The excessive ice hinders proper airflow in the appliance, impacting its overall cooling efficiency. This impediment prevents the cold air from circulating into the refrigerator compartment.

    This issue arises when warm air enters the freezer and condenses into frost or ice. As a result, this accumulation restricts airflow to the refrigerator section, causing it to be warmer than usual. To address this problem, ensure that you regularly defrost your Samsung refrigerator according to the manufacturer’s recommendations.

    Air Flow Restriction

    Blocked vents within a Samsung refrigerator can lead to inadequate airflow into the refrigerator section. Proper airflow is crucial for optimal cooling performance as it ensures that cold air circulates evenly throughout both compartments of the appliance.

    When vents are blocked by food items or other obstructions, they prevent cool air from reaching all parts of the fridge. Consequently, certain areas may not receive sufficient cooling while others become excessively cold due to restricted air circulation. Regularly check and clear any blockages in your fridge’s vents to maintain consistent and adequate cooling throughout both compartments.

    Evaporator Coil Problems

    Frost Buildup

    Frost buildup in the refrigerator can significantly impact its cooling capacity. When frost accumulates on the evaporator coils, it insulates them, preventing efficient heat exchange and leading to inadequate cooling in the refrigerator section. This can result in items not being kept at the proper temperature, causing them to spoil prematurely.

    To manage and prevent frost accumulation, it’s essential to regularly check and clean the evaporator coils. Ensuring that the refrigerator door is tightly sealed can help minimize moisture infiltration that contributes to frost formation. Keeping food covered and avoiding leaving the refrigerator door open for extended periods also aids in reducing excess moisture inside.

    One example of managing frost buildup is by using a hairdryer to carefully melt any accumulated ice on the coils. Once melted, wiping away any remaining water with a towel helps prevent future issues caused by excessive frosting.

    Defrost System Failure

    A malfunctioning defrost system can have severe implications for a refrigerator’s cooling performance. If this system fails to function properly, ice may build up excessively on the evaporator coils over time, leading to reduced airflow and compromised cooling efficiency within the appliance.

    Regular maintenance is crucial for identifying potential issues with a refrigerator’s defrost mechanism early on. This includes checking if there are any visible signs of ice or frost accumulation where it shouldn’t be present within the unit. Moreover, monitoring whether items stored in your fridge start showing signs of thawing despite being set at an appropriate temperature could indicate a problem with its defrost system.

    Preventing defrost system failure involves periodically inspecting and testing components like heaters, thermostats, and timers as part of regular maintenance routines. By doing so, you can ensure these elements are functioning correctly and address any problems promptly before they escalate into more significant issues.

    Evaporator Fan Motor Malfunction

    Faulty Fan Motor

    The evaporator fan motor plays a crucial role in maintaining proper airflow within the Samsung refrigerator. It is responsible for circulating air through the evaporator coils, ensuring that cold air is evenly distributed throughout the appliance. When the fan motor malfunctions, it can lead to inadequate airflow, causing the refrigerator section to not be as cold as it should be.

    A malfunctioning fan motor can significantly impact the refrigeration performance of the appliance. Without proper circulation of cold air, the temperature inside the refrigerator may rise, leading to food spoilage and potential health risks. To troubleshoot issues with the fan motor, one can listen for any unusual noises coming from inside the refrigerator or check if there’s no airflow when opening its door.

    Inconsistent Cooling

    Inconsistent cooling within a Samsung refrigerator can result in irregular temperature regulation in both compartments – fridge and freezer. This inconsistency can have a detrimental effect on food preservation since certain items require specific temperatures to remain fresh and safe for consumption. For example, dairy products like milk and cheese need consistent cooling to prevent them from spoiling prematurely.

    To address inconsistent cooling in the refrigerator section, one could start by checking if there are any obstructions blocking vents that could disrupt proper airflow or inspecting if there’s excessive frost buildup on evaporator coils which might indicate an issue with defrost system components.

    Damper Control Assembly Issue

    Temperature Regulation

    Accurate temperature control is crucial for keeping food fresh in a refrigerator. It’s essential to monitor and adjust the refrigerator temperature settings to ensure that perishable items are stored at safe temperatures. Factors such as frequent door openings, overloading the fridge, or warm ambient temperatures can affect the refrigerator’s ability to maintain proper cooling.

    Maintaining an optimal refrigerator temperature prevents bacterial growth and preserves food quality. For instance, a temperature above 40°F (4°C) can lead to rapid bacteria multiplication in perishable foods like meat and dairy products. Therefore, it’s important to regularly check and adjust the temperature settings based on usage patterns and external conditions.

    Damper Failure Symptoms

    When the damper assembly malfunctions, it can lead to inadequate cooling in the refrigerator compartment while maintaining normal freezing in the freezer section. Recognizing symptoms of a faulty damper affecting cooling performance is crucial for timely repairs. Common signs include uneven cooling throughout the fridge, excessively cold freezer despite warm refrigeration compartment, or fluctuating internal temperatures.

    The role of dampers in regulating airflow within a refrigerator is pivotal for balanced cooling across compartments. A malfunctioning damper may disrupt this airflow balance, resulting in inconsistent temperatures inside the appliance. Resolving issues related to damper failure involves inspecting and potentially replacing this component to restore proper air circulation and temperature regulation.

    Overstuffing and Vent Blockage

    Proper Air Circulation

    A samsung refrigerator not cold but freezer is could be due to improper air circulation. Adequate airflow is crucial for efficient refrigeration. When the refrigerator is overpacked, it restricts the movement of air, leading to uneven cooling. Optimizing airflow within the appliance ensures consistent cooling throughout.

    To prevent issues associated with poor air circulation, it’s essential to maintain a clear path for the cold air to circulate. This means avoiding overloading the shelves and drawers with items that obstruct airflow. By organizing items strategically, you can optimize the flow of cool air within the refrigerator compartment.

    Item Placement Strategy

    Strategically placing food items in your Samsung refrigerator can significantly impact its overall performance. Maximizing space and ensuring proper airflow within the fridge compartment are key factors in maintaining consistent cooling temperatures.

    When arranging items, ensure that there’s enough space between them for adequate airflow. Placing large or tall items too close together can impede proper ventilation, resulting in uneven cooling throughout the fridge. Positioning certain foods near vents or fans can disrupt airflow and lead to temperature inconsistencies.

    To maximize efficiency, consider using storage containers or bins to group similar items together while allowing sufficient room for air circulation around each group.

    Condenser Coil Maintenance

    Cleaning Process

    When your Samsung refrigerator is not cold but the freezer is, it could be due to dirty condenser coils. These coils are responsible for releasing heat from inside the fridge, and when they get clogged with dust and debris, they can’t function effectively. To maintain optimal functionality of your fridge, you need to clean the condenser coils regularly. Proper cleaning methods involve using a vacuum cleaner or a brush to remove any accumulated dirt. By eliminating debris and obstructions that hinder cooling performance, you allow the refrigerator to operate efficiently.

    Regular maintenance routines are crucial in upholding cleanliness and efficiency in your Samsung refrigerator. Over time, dust particles can accumulate on the condenser coils if not cleaned regularly, leading to poor cooling performance. It’s essential to incorporate coil cleaning into your routine maintenance schedule to prevent this issue.

    Heat Dissipation Efficiency

    Maximizing heat dissipation plays a vital role in enhancing overall refrigeration performance in your Samsung appliance. When heat dissipation is optimized, ideal temperatures within different compartments of the refrigerator can be maintained consistently. This means that even if one part of the fridge isn’t cooling properly while another part (like the freezer) is working fine, improving heat dissipation efficiency can help balance out these temperature discrepancies.

    To improve heat dissipation efficiency, ensure that there’s proper airflow around the appliance by keeping enough space between the back of the fridge and nearby walls or cabinets. Check for any obstructions such as boxes or other items blocking ventilation grills at either side or behind your Samsung refrigerator.

    Thermistor and Temperature Control

    Thermistor Function

    The thermistor is a crucial component in your Samsung refrigerator, responsible for regulating the temperatures in both the fridge and freezer compartments. It works by sensing the temperature inside the appliance and sending signals to the control board to maintain the desired levels. If your refrigerator is not cold but the freezer is, a malfunctioning thermistor could be at fault. Troubleshooting potential issues related to thermistors involves checking for any signs of physical damage or testing its resistance with a multimeter.

    Replacing faulty thermistors can effectively restore proper refrigeration in your Samsung refrigerator. This process typically involves locating the old thermistor, disconnecting it from its housing, removing it carefully, and then installing a new one in its place. Once replaced, you can expect improved temperature regulation throughout both compartments of your refrigerator.

    Defrost System Check

    In addition to monitoring the condition of the thermistor, conducting routine checks on your refrigerator’s defrost system is essential for ensuring optimal performance. A well-functioning defrost system prevents ice buildup within the freezer compartment which can impact overall cooling efficiency.

    Regularly inspecting this crucial device helps detect early signs of malfunctions such as excessive frost accumulation or inadequate melting during defrost cycles. By maintaining an efficient defrost system through regular cleaning and inspection, you can help ensure that your Samsung refrigerator continues to provide reliable refrigeration.

    Incorrect Settings Impacting Performance

    Vacation Mode Complications

    Using vacation mode on a Samsung refrigerator can lead to potential complications. When in vacation mode, the appliance operates differently, impacting its overall refrigeration performance. For instance, it may prioritize energy-saving over cooling efficiency, causing the refrigerator section to not be as cold as expected while maintaining the freezer’s functionality. Turning off vacation mode is crucial when addressing cooling issues in this scenario.

    Vacation mode essentially alters the standard functioning of a refrigerator by adjusting temperature settings and other operational parameters to conserve energy during prolonged periods of non-use. This feature is beneficial for saving electricity when away from home but can inadvertently affect your refrigerator’s ability to maintain optimal temperatures.

    Setting Adjustments

    Making necessary adjustments to the temperature settings of your Samsung refrigerator is essential for improved cooling performance. By customizing these settings based on environmental factors and usage patterns, you can positively impact overall refrigeration efficiency.

    For example, if your kitchen tends to be warmer due to sunlight exposure or cooking activities, adjusting the temperature slightly lower than usual could help compensate for the additional heat influx and maintain consistent cooling levels inside the appliance.

    Furthermore, understanding how setting adjustments influence thermistors and temperature control mechanisms allows users to optimize their Samsung refrigerators‘ performance. By aligning these settings with specific needs and environmental conditions, users can ensure that both the fridge and freezer compartments operate at their intended temperatures without any discrepancies.

    Troubleshooting Steps for Samsung Fridge Issues

    Diagnostic Mode Usage

    When troubleshooting a samsung refrigerator not cold but freezer is, diagnostic mode can be your best friend. This feature allows you to identify malfunctions and navigate through various settings to pinpoint the issue. Leveraging the diagnostic mode helps in understanding if there are any errors or problems with specific components, such as the temperature sensors, defrost system, or compressor. By using this mode, you can gain insights into how different parts of the fridge are functioning and whether they are contributing to the cooling problem.

    Navigating through diagnostic mode features involves accessing a series of codes and readings that provide valuable information about the refrigerator’s performance. For instance, it enables you to check if there are any error codes displayed on the control panel or monitor specific temperature readings from different compartments within the appliance. This data can then be used to troubleshoot issues effectively by identifying where exactly in the refrigeration system a malfunction might be occurring.

    Professional Assessment Recommendation

    While DIY troubleshooting methods like using diagnostic mode can help address minor issues, seeking professional assessment is crucial for complex refrigeration problems. It’s essential to recognize when an issue may require expertise beyond what an average homeowner possesses. Consulting professionals becomes imperative when facing challenges related to sealed systems, coolant leaks, or electrical malfunctions that could pose safety hazards.

    Professional evaluation and repair services offer several benefits when dealing with refrigerator malfunctions that go beyond basic troubleshooting steps. Experts have specialized knowledge and tools necessary for accurately diagnosing complex issues within Samsung refrigerators. Their experience enables them to quickly identify problems and execute repairs efficiently while ensuring long-term reliability of your appliance.

    Knowing when to consult experts for resolving refrigerator malfunctions is critical in preventing further damage or safety risks associated with attempting repairs without adequate skills or knowledge. If despite following all troubleshooting steps at your disposal (including utilizing diagnostic mode), your Samsung fridge continues not cooling properly, it’s time to seek professional assistance.

    Final Remarks

    You’ve now learned about the various reasons behind your Samsung refrigerator not cooling properly while the freezer remains functional. From ventilation system blockages to evaporator coil problems and incorrect temperature settings, there are several potential culprits to consider when troubleshooting these issues. By understanding these common causes, you can take proactive steps to address the problem and restore your refrigerator’s optimal performance.

    Now that you have a better grasp of what could be causing the cooling problem in your Samsung fridge, it’s time to put this knowledge into action. Start by checking for any blockages in the ventilation system and ensuring that the temperature settings are correct. If issues persist, don’t hesitate to seek professional assistance to diagnose and fix the problem effectively.

    Frequently Asked Questions

    Why is my Samsung refrigerator not cold but the freezer is working fine?

    If your Samsung refrigerator isn’t cooling properly but the freezer is, it could be due to issues with the ventilation system, evaporator coil, evaporator fan motor, damper control assembly, or condenser coil. Check for blockages and ensure proper maintenance of these components.

    How can I troubleshoot cooling issues with my Samsung fridge?

    To troubleshoot cooling problems with your Samsung fridge, start by checking for blockages in the ventilation system and ensuring that the evaporator coil and fan are functioning properly. Clean the condenser coils and check if there are any temperature control settings impacting its performance.

    What should I do if my Samsung fridge has a malfunctioning evaporator fan motor?

    If you suspect that your Samsung fridge’s evaporator fan motor is malfunctioning, it’s best to consult a professional technician for repair or replacement. Attempting to fix this component without expertise may cause further damage to your appliance.

    Can overstuffing my Samsung refrigerator lead to cooling issues?

    Yes, overstuffing your Samsung refrigerator can obstruct airflow and lead to cooling problems. Ensure that air vents inside the fridge are not blocked by food items so that cool air can circulate freely throughout the appliance.

    How often should I perform maintenance on the condenser coils of my Samsung refrigerator?

    It’s recommended to clean the condenser coils of your Samsung refrigerator at least once every six months. Regular maintenance helps prevent dust buildup and ensures efficient heat transfer for optimal cooling performance.