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Thermo Fisher Scientific

Turbomolecular Pump is Not Running


Turbomolecular pump has switched off


Q Exactive GC


Troubleshooting Tips:

  • The instrument status window displays real-time status information for the instrument components.
  • All parameters are arranged in a tree view.
  • In addition to showing numerical values of parameters (for example, pump speeds or component temperatures), the instrument status window uses icons to indicate the statuses of system components.
  • The messages window displays real-time information about the statuses of the instrument, the control service, or other programs.
  • It might display additional information. In case of an overheated turbomolecular pump, shut down the mass spectrometer.
  • To prevent permanent damage to components of the Q Exactive GC mass spectrometer, Thermo Fisher Scientific recommends calling a Thermo Fisher Scientific field service engineer.


A turbomolecular pump may be switched off because of one of the following reasons:

  • Turbomolecular pump is blocked
  • Failure of fans in turbomolecular pump Each of the above reasons might lead to an overheating of the pump.
  • When overheated, a turbomolecular pump switches off automatically to prevent its destruction.
  • Overheating protection prevents the outbreak of a fire and minimizes the risk of destroying the pump.


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