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Troubleshooting High Temperature Issues in Screw Air Compressors

Troubleshooting High Temperature Issues in Screw Air Compressors
September 13, 2023


Screw air compressors are widely used in various industries for their efficient and reliable operation.  However, these machines can occasionally face high temperature problems, which can affect their performance and efficiency.  In this article, we will explore how to troubleshoot and repair high-temperature issues in screw air compressors.

1.  Identify the Symptoms:

The first step in addressing high-temperature issues is to identify the symptoms.  Some common signs include abnormal noise, increased vibration, overheating of the compressor body, or a sudden drop in performance.  Paying attention to these indicators will help in diagnosing the problem accurately.


2.  Check the Cooling System:

A malfunctioning cooling system is often the primary culprit behind high temperature in screw air compressors.  Begin by inspecting the cooling fan and ensuring it is clean and functioning correctly.  Also, check for any blockages in the air intake or discharge vents.  Clean or replace the air filters if necessary.  Additionally, examine the cooling oil level and ensure it is within the recommended range.


3.  Inspect the Lubrication System:

Insufficient or degraded lubrication can lead to increased friction and heat generation in the compressor.  Regularly check the oil level and quality.  Ensure that the oil cooler is clean and free from debris.  If the lubricant appears dirty or contaminated, it should be drained and replaced with fresh oil.  Consult the manufacturer's guidelines for the recommended lubrication schedule and type of oil.


4.  Evaluate the Air Flow:

Inadequate airflow can cause heat buildup in the compressor.  Check the condition of the air inlet filters and clean or replace them if necessary.  Ensure that the air intake and discharge lines are free from any obstructions or leaks.  Proper ventilation and adequate space around the compressor are essential for efficient cooling.


5.  Examine the Pressure Settings:

Incorrect pressure settings can put excessive strain on the compressor, resulting in elevated temperatures.  Verify that the pressure settings are within the recommended range.  Consult the manufacturer's manual or a professional technician if adjustments are required.


6.  Seek Professional Assistance:

If the above steps do not resolve the high-temperature problem or if you are unsure about carrying out the repairs yourself, it is advisable to seek professional assistance.  Experienced technicians can conduct a thorough inspection, identify the underlying cause, and perform the necessary repairs or component replacements.



Regular maintenance and timely troubleshooting are crucial for ensuring the efficient operation of screw air compressors.  By following the steps outlined in this article, you can effectively diagnose and repair high-temperature issues in your compressor, thereby enhancing its performance and prolonging its lifespan.  Remember to always prioritize safety and consult professionals when needed.

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