What to do if the 'Door open or unlocked' message appears on Beckman Coulter Laboratory Equipment?
- RRichard NelsonAug 13, 2025
If the chamber door is unlocked or open, this message will appear. Close the door properly before starting. If the DOOR indicator flashes during centrifugation, it indicates a door lock malfunction. Do not try to open the door until the rotor stops. Once stopped, inspect the door and chamber O-ring. If the message persists without a clear cause, contact Beckman Coulter Field Service.