Pfeiffer Vacuum HiLobe 6204 H User Manual (English)

Questions and Answers:

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Monica PerryAug 8, 2025
Why is my Pfeiffer Vacuum HiLobe 6204 H Water Pump not reaching ultimate pressure?
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  Ms. Rachel ChapmanAug 8, 2025
  If your Pfeiffer Vacuum Water Pump isn't reaching the expected ultimate pressure, several factors could be at play. First, examine the backing pump to ensure it's functioning correctly. Next, check the entire system for any leaks, conduct a leak test if needed, and eliminate any found leaks. Also, verify the calibration of your measurement instruments. Finally, check to see if auxiliary gases, such as sealing gas or gas ballast, are inadvertently entering the vacuum pump. If there is condensate or other outgassing impurities in the operation fluid, replace the lubricant.
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April JohnsonAug 12, 2025
What to do if my Pfeiffer Vacuum HiLobe 6204 H is making unusual noises?
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  owrightAug 12, 2025
  If your Pfeiffer Vacuum Water Pump is making unusual noises during operation, it could be due to a few reasons. Immediately switch off the pump and check the suction chamber for dirt and clean it. There might be damage to the bearing or gear wheels, in that case immediately switch off the vacuum pump. Another potential cause is an imbalance due to deposits on or in the pistons, so clean the pistons.
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Joseph GomezAug 17, 2025
How to troubleshoot a Pfeiffer Vacuum HiLobe 6204 H that won't start and has no LED lights?
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  Barry BrownAug 17, 2025
  If your Pfeiffer Vacuum Water Pump does not start up and no LED lights up on the operator panel of the electronic drive unit, check the mains voltage and the mains fuse. If these are not the cause, the electronic drive unit may be defective.
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Ashley BauerAug 23, 2025
Why does my Pfeiffer Vacuum HiLobe 6204 H turn off shortly after I start it?
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  Nicole SmithAug 23, 2025
  If your Pfeiffer Vacuum Water Pump switches off after starting, it's possible the thermal protection switch of the motor or the vacuum pump has been triggered. Determine what caused this and fix the issue. Allow the pump or motor to cool down. Ensure you are using the pump as intended. It is also possible that the thermal protection switch of the motor and/or the oil temperature sensors of the vacuum pump have triggered. Determine what caused this and fix the issue. Allow the pump or motor to cool down. Ensure you are using the pump as intended.
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Kelly HenryAug 27, 2025
What to do if my Pfeiffer Vacuum HiLobe 6204 H Water Pump will not start up?
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  Brittany WrightAug 27, 2025
  If your Pfeiffer Vacuum Water Pump will not start up, immediately switch it off and clean the suction chamber. If the problem persists, the device may be defective.
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kristenpattonSep 1, 2025
Why are the LEDs on my Pfeiffer Vacuum HiLobe 6204 H's operator panel not working correctly?
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  williamconnerSep 1, 2025
  If the LEDs on the operator panel of your Pfeiffer Vacuum Water Pump don't match the pump's operating state (e.g., LED status is “off” even though voltage supply is present), it could be due to a defective operator panel circuit board caused by overvoltage or a faulty pin assignment at the “remote”. Another possibility is that 24 V is applied via a third-party power supply with deviating potential.