A wine cabinet’s door seal does more work than it might seem — beyond keeping cold air in, it’s a key part of what lets the cabinet hold the tight temperature tolerance a serious collection depends on. A seal that’s lost compression lets in warm, humid room air, which not only makes the compressor work harder but can introduce the kind of temperature instability that shows up as a TEMP SWING alert well before the seal fails obviously enough to trigger a DOR door-open alarm.
Periodically checking that the door pulls shut firmly and evenly across its full width, without needing to be pushed or held, is a simple maintenance habit that catches seal wear before it becomes a bigger issue.