AJS Sheath Gas Flow fault - the Zone controller cannot regulate for the requested setting (LC/MS)

Probable Causes

  • Obstruction or lack of pressure in gas supply

  • Leak or blocked filter

  • Bad gas flow module

  • Bad carrier board

Suggested Actions

  • Check that the gas supply pressure is between 80 psi and 100 psi.

  • Replace or temporarily bypass any filters.

  • Increase gas supply pressure to >110 psi if the N2 filter is not replaced annually.

  • Check all the gas connections for leaks

  • If the Gas Flow works at a low flow settings but not at a high flow setting, look for obstruction or limitation from the gas supply.

  • If this error continues to occur, copy this error on the screen and contact Agilent for more help.