Oral-B Pro 3 3500 — Error codes & fixes
Troubleshooting guide for the Oral-B Pro 3 3500. Diagnose an error code and find the fix.
Not charging
not-chargingThe toothbrush does not charge, often from a dirty charging contact, a worn battery or a faulty base.
Source: ProductDB new-categories research catalog
Confidence: 90%
Verified Aug 8, 2026
Weak vibration / motor fault
weak-vibrationThe brush vibrates weakly or stops, often from a worn motor or a low battery.
Source: ProductDB new-categories research catalog
Confidence: 90%
Verified Aug 8, 2026
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