Troubleshooting My Philips Sonicare only operates for a few brushings? If the handle of your electric Philips Sonicare toothbrush does not function properly, there might be a simple solution. Resolve it yourself with this tip. Charge for 24 hours Place the handle in the charger and charge for 24 hours before turning it back on. If the handle still does not hold a charge, contact customer service.