Vacuum shows E08, motor does not start, sometimes accompanied by a brief click or twitch

Safety first: Remove the battery. Do not short motor terminals or apply external power unless you are a trained technician.

• Check for obstructions: Ensure the motor fan is not jammed by debris. With the dust bin removed, look into the motor inlet and gently spin the fan with a plastic tool if accessible. It should rotate freely.
• Smell test: If you notice a strong burnt smell from the motor housing, the motor windings are likely damaged.
• Inspect connectors: If the design allows, remove the motor housing cover and verify that the motor’s plug is firmly connected to the PCB.
• Avoid deep disassembly: Bosch motor units are often sold as sealed assemblies. If E08 persists and the motor does not run at all, the motor assembly or main PCB must be replaced as a unit.
• Professional service: Because this involves high-speed motors and power electronics, replacement is best handled by an authorized Bosch service center.