Varian TriScroll 600 Series

Questions and Answers

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Adam BriggsAug 12, 2025
How to troubleshoot Varian Water Pump that won't start?
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  Christopher WaltonAug 12, 2025
  If your Varian Water Pump won't start, several issues could be the cause. First, check if the circuit breaker is open and close it, identifying any overload. Next, examine the motor thermal protector; allow the motor to cool to reset it, also identifying any overload. Inspect for electrical shorts under the motor's electrical cover and repair if necessary. Check the wiring for looseness or cuts, repairing or replacing as needed. Excessive voltage drop can also prevent starting, so verify the size and length of the power supply cable. Finally, a defective motor could be the culprit, requiring inspection and potentially contacting Vacuum Technologies.
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John RobertsAug 20, 2025
Why does my Varian TriScroll 600 Water Pump have poor ultimate pressure?
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  Taylor SnyderAug 20, 2025
  Poor ultimate pressure in your Varian Water Pump can stem from several sources. Begin by checking for system leaks and repair them. If there's water in the pump, flush it with air or dry nitrogen. A plugged gas ballast can also cause this issue; replace the breather vent. If solvent is present in the pump, flush it with air or dry nitrogen and consider installing a trap or filter. Worn-out seals can also lead to poor pressure, so replace the tip seals. Lastly, ensure good conductance to the pump by replumbing with shorter and/or larger diameter tubing.
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Amy WoodSep 1, 2025
What to do if Varian Water Pump makes hammering noise?
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  ltorresSep 1, 2025
  If your Varian Water Pump is making a hammering noise, it could be due to the pump overheating. Check the ambient temperature and ensure proper ventilation to the pump. Alternatively, there might be debris inside the pump. Inspect the inlet screen, flush the pump, and if necessary, disassemble the pump for a thorough inspection.