GC/MS Instrument fault detected 2.5 emission current controller

Discussion created by hepi77 on Aug 18, 2020
Latest reply on Sep 17, 2020 by pwd



I am having problems with my GC/MS (7890B & 7000). Every time I try to autotune it, I get a message saying "instrument fault detected 2.5 emission current controller cannot regulate the requested setting after a fixed amount of time". The emission current goes up to about 36µA when it should be 35µA, the same thing happens when I switch to filament 2. I did clean the source last week but it did autotune successfully afterwards. I've also double checked the wiring in the source and all seems fine.


We did have a power cut at the weekend, I don't know if this could have caused the problems.


Any help would be much appreciated.