Philips sonicare HX91 Manual page 15

Features
Pressure Sensor
- 3 green LEDs indicate a full charge.
Note: If you hear two sets of five beeps and the
yellow LED of the battery level indicator flashes,
your Sonicare will turn off until placed on the
charger, where it will start to recharge.
Note: Your Sonicare will not be able to run a
brushing routine until it is fully recharged.
Note:To keep the battery fully charged at all times,
you may keep your Sonicare on the charger when
not in use.
This Sonicare model comes with the Pressure
Sensor feature activated. The Pressure Sensor
works in all 3 modes and at all 3 intensity levels.
Activating or deactivating the Pressure
Sensor feature
1 Attach the brush head to the handle.
2 Place the handle in the plugged-in charger or
sanitizer.
- To deactivate Pressure Sensor:
Press and hold the power on/off and mode
button for 2 seconds. You hear 1 beep to
indicate that the Pressure Sensor feature has
been deactivated.
- To activate Pressure Sensor:
Press and hold the power on/off and mode
button for 2 seconds. You hear 2 beeps to
indicate that the Pressure Sensor feature has
been activated.
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English