Hello All,

I am facing a very troublesome leak issue but struggling to pinpoint the source of leak. The GC component is working fine, its holding carrier gas flow and gc column pressure fine. But when I try the auto startup, it does not trigger the rotary pump to start, neither does it start the turbo pump or the ion source. If I do it manually, the rotary pump pressure goes down to 2 Pa, then I turned the turbo pump on, the pressure went to 3e-4 Pa. Now here comes the issues:

1. There is bubble forming in the rotary pump oil viewing window.
2. The instrument passes the auto tuning
3. The ion source temp goes upto 230C which I can see in the software's window but GC panel shows the temp to be zero.
4. There is no loud noise coming from the turbo pump.
5. Since it passed the auto tuning, I tried collecting background scan, GC would start running but mass spec status stays at "Ready" but it doesn't collect any scan.


I suppose the bubbles forming would indicate a leak but I don't know where that could be coming from, I even tried using a Helium detector around the instrument and found nothing. Please let me know what steps I can take now. Thank you