Vacuum shuts off after a few seconds of use without showing an error code.

Safety first: Remove the battery before inspection.

• Fully charge battery: Place the battery on the original charger until it indicates full charge.
• Reduce load: Clean filters, empty the dust bin, and clear any blockages in the wand and floor head.
• Check battery contacts: Inspect and gently clean the metal contacts on the battery and vacuum body with a dry cloth.
• Test runtime: After charging, run the vacuum on ECO/low mode. If it still shuts off quickly, the battery cells are likely worn and the pack should be replaced.