Robot reports E9 and stops; often occurs when the dust bin is not seated correctly.

Safety first: Turn off the robot.

• Re-seat dust bin: Remove the dust bin completely and then firmly reinsert it until it clicks into place.
• Inspect bin tabs: Check for broken plastic tabs or missing magnets that engage the detection switch.
• Clean contacts: If your model uses electrical contacts on the bin, wipe them with a dry cloth.
• Test: Power on the robot and see if the error clears.
• If E9 remains: The Dust Bin Detection Switch or sensor circuit on the main PCB may be faulty. Replacement of the switch or main board may be required.