Over the past month, our 8860 GC will not remain lit. We can get it to light initially, but eventually the FID signal will fall below the FID offset (which I have changed from 2pA to 0.5pA). This will usually happen after a few injections. Our flows are:
These are the same flows we use for our 7890 GCs and have never experienced this issue, so I am a bit stumped on why we suddenly have this issue with our 8860 GC. Any help or guidance would be appreciated. I have cleaned our detected, inlet, changed our jet, liner, septa, column, and gold seal.