High Nitrogen After Replacing Carrier Gas Filter

We had a H2O leak of 17% and our carrier gas filter was saturated with moisture. At this time, N2 and O2 levels were both well below 5%.

We had a N2 leak after replacing the saturated filter with a new Gas Clean Filter (H2O and O2 levels were <5%). We followed the instructions, entered the split flow to 400 mL/min to purge the filter. The N2 level significantly dropped to <5%, however, after we return to splitless mode the N2 levels creep back up to ~40% and remains there. We have purged multiple times and the same situation occurs. The only change we made was replacing the new filter- nothing else was touched.

Has anyone experienced this before and can you offer any solutions, please?

Thank you for your help Slight smile

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