Charging does not start; charger LED blinks and the vacuum display shows E08 or a plug/charger error icon.

Safety first: Unplug the charger from the mains before inspecting cables or contacts.

• 1. Inspect charger and cable: Check the power adapter for cuts, kinks, or burn marks. Ensure the plug fits firmly into the wall socket and the vacuum/dock.
• 2. Test outlet: Plug another device into the same outlet to confirm it has power.
• 3. Clean charging contacts: On dock-style Grundig models, clean the metal contacts on both the dock and the vacuum with a dry cloth. Ensure they are not bent or recessed.
• 4. Try direct charging: If your model allows, bypass the dock and plug the charger directly into the handheld unit. If charging works directly, the dock is faulty and should be replaced.
• 5. Try another compatible charger: If available, test with a known-good Grundig charger of the same voltage and current rating. If E08 persists, the internal charge management circuit or input jack is likely damaged and requires professional repair.