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pamela28Aug 15, 2025
What to do if the Red Service Required symbol flashes with Audible Alert on my Drive DeVilbiss 125D?
- CcgarnerAug 15, 2025
If the Red Service Required symbol flashes accompanied by an audible alert, it could indicate that the unit has overheated. Ensure that the vent holes are not blocked and allow the unit to cool down before trying again. If the issue persists, contact your provider and switch to your reserve oxygen system, as it may indicate a unit malfunction.