Chasing intermittent low-pressure alarms

Seeing intermittent low-pressure alarms on a PB980 after about 11,200 hours, most often right after reprocessing; leak test passes on the bench, but the alarm returns under humidifier load on the floor. I’m not looking to guess at the bedside — just want our alarms to stay meaningful and keep patients calm — so before I start swapping a flow sensor harness, has anyone had luck with specific circuit component changes or connector reseats that resolved this? If a patient shows distress, that’s for the licensed clinical team to manage immediately.

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Had this on a 980 about 11k hours too — only showed under humidifier load; after “reprocessing” the MR850 chamber lid gasket had taken a set, and once hot it leaked just enough to trip low-pressure — swapping in a fresh chamber/gasket fixed it, so I’d try that before pulling the flow sensor harness.

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