I've been spending time getting my university's recently donated LCMS up and running, and I've been obtaining good results. This morning, however, the LCMS has been throwing errors every few minutes that's disrupting runs and ability to auto tune, and interrupts diagnostic tests, some of which are failing.
I get both "Difficulty with ion optics electronics" and "DC Quad Fault ."
I have experience with opening up 5975/5977 sources and cleaning the optics, but I don't have any LCMSD maintenance experience. Because this is a donated instrument, we have no idea of its maintenance history. I was reading in the ChemStation help topics that cleaning the capillary could help resolve proper voltages. Can I clean the capillary without venting? Can I open the round front chamber on the MSD without venting?
Any ideas where to start?