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    Why is My Fume Extractor not Working?

    A fume extractor is a crucial piece of equipment used to maintain a safe and healthy working environment, especially in industries dealing with hazardous fumes and airborne particles. However, like any machinery, fume extractors can encounter issues that lead to reduced efficiency or complete failure. Next, we will explore some common fume extractor failure problems and provide practical troubleshooting tips to help you identify and resolve the problem.

    Common Fume Extractor Failure Problems

    • Power Supply and Electrical Issues: One of the first things to check is the power supply. Ensure that the ventilation hood is properly connected to a functional power outlet, and the power switch is turned on. Verify if the fuse is intact and hasn't blown or if the circuit breaker hasn't tripped. If either has occurred, replace the fuse or reset the circuit breaker. Faulty wiring or loose electrical connections can also cause the unit to malfunction, so carefully inspect the power cord and connections for any signs of damage.

    • Fan or Motor Failure: The fan and motor are critical components of a fume extractor. The extractor's fan or motor might be malfunctioning, resulting in poor or no air circulation. Listen for unusual noises or vibrations when the unit is turned on, as this might indicate a fan or motor failure. Over time, these components can wear out, especially if the extractor is used extensively. If the fan or motor is not functioning properly, it may need repair or replacement.

    Fan and motor of fume extractor

    • Blocked or Clogged Filters: Fume extractors rely on filters to capture and remove harmful fumes and particles from the air. Over time, the filters can become clogged with debris and contaminants, reducing the extractor's efficiency. Check and clean or replace the filters if necessary. Neglecting filter maintenance can lead to poor air quality and may even strain the fan and motor, potentially causing further damage.

    Fume extractor filters

    • Ventilation System Issues: If the ventilation system is improperly installed or obstructed, it can hinder the flow of extracted fumes outside, leading to poor performance. Ensure that the fume ventilation equipment is set up correctly and that the exhaust is directed outside. Check the ducts and vents for any obstructions or blockages that could impede airflow. Ensure that the exhaust is directed away from the workspace and not recirculated back into the room. Inadequate ventilation can result in inadequate fume removal, rendering the extractor less effective.

    • Electronic Control Failure: Fume extractor devices with electronic controls may experience issues with the control board, sensors, or displays, causing the unit to stop working or operate abnormally. Check for error messages or unusual indicators on the display. Reset the unit, following the manufacturer's instructions, and if the issue persists, contact their customer support or a qualified technician for assistance.

    • Thermal Protection: To prevent overheating, some fume extractors have built-in thermal protection mechanisms that shut off the unit if it overheats, protecting the internal components from damage. If your fume extractor suddenly stops working, it might have triggered this safety feature. Allow the unit to cool down before attempting to restart it.

    • Wiring or Electrical Faults: Faulty wiring or loose electrical connections can disrupt the electrical supply to the fume evacuator, rendering it inoperative.

    • Exhaust Blockages: If the exhaust vent or duct is blocked, the extracted fumes might not be able to escape, affecting the extractor's performance.

    • User Error: Sometimes, the fume extractor systems may not be working due to improper usage or settings. Make sure you are following the manufacturer's instructions correctly.

    • Age and Wear: Over time, all mechanical and electronic equipment can experience wear and tear, which might lead to reduced efficiency or complete failure of the fume exhaust system.


    • A well-functioning fume extractor is vital for maintaining a safe and healthy work environment. If your fume extraction unit is not working correctly, there could be several underlying reasons, ranging from simple fixes like power supply issues and filter maintenance to more complex problems like motor failure or electronic control malfunctions.
    • If you've gone through these troubleshooting steps and the fume extractor is still not working, it might be best to contact the manufacturer's support or a qualified technician to inspect and diagnose the problem accurately.
    • Please remember to exercise caution when dealing with electrical equipment, and if you are not comfortable with troubleshooting on your own, seek professional assistance to avoid any potential risks.
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