6890N Inlet EPC Error?

I have a 6890N and was doing S/SL inlet maintenance yesterday when the pressure "actual" for the S/SL changed to 152. This occurred after pressing "Off" on the S/SL pressure and then disconnecting the column from the inlet. The value was stuck at 152 and would not change. I rebooted the GC a few times to no avail. Finally after unplugging the GC and then starting it up, the 152 went away, and the S/SL EPC is working fine.


Has anyone seen this issue? I haven't seen anything online about it other than a forum post on another chromatography forum.

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