Oral-B 3758a - User Manual

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90095764_UI_booklet_120x170_iO7-9_HKTW_2D.indd 190095764_UI_booklet_120x170_iO7-9_HKTW_2D.indd 1 02.06.22 11:3302.06.22 11:33

Stapled booklet, 120 x 170 mm, 26 pages (incl. 6 pages cover),

Cover 4c, Inhalt black + PMS 288 C

Questions and Answers

J
Jon SellersAug 10, 2025
Why is my Oral-B Electric Toothbrush handle not charging?
- N
  Nancy WebbAug 10, 2025
  Your Oral-B Electric Toothbrush handle might not be charging because the battery is at a very low level, and it may take 10-15 minutes until the display turns on. Also, the ambient temperature might be out of the valid range (less than 0°C or greater than 40°C), or the charger may not be properly connected. To resolve this, charge the handle for at least 30 minutes. It is recommended that the ambient temperature for charging is 5°C to 35°C. Also, ensure the charger is connected to the mains voltage.
J
Jeffery HillAug 20, 2025
Why does my Oral-B 3758a make rattling/loud noise during brushing or turning on?
- J
  Jimmy ThompsonAug 20, 2025
  The rattling or loud noise during brushing or turning on your Oral-B Electric Toothbrush may be due to the brush head not being placed correctly onto the brush handle, or the brush head may be worn. Check that the brush head fits properly on the handle, noting that a small gap remains in between. If the brush head is worn, replace it.
C
Caroline WoodAug 29, 2025
What to do if my Oral-B 3758a handle is not operating during first use?
- J
  Jennifer WilsonAug 29, 2025
  If your Oral-B Electric Toothbrush handle is not operating during the first use, it could be due to a very low battery charge or operating outside the standard temperature range. If the battery has a very low charge, charge it for at least 30 minutes. Always operate the toothbrush in standard operating temperatures (greater than 0°C and less than 40°C).

Summary

Description

Product Components

Detailed list of toothbrush parts and their functions.

Accessories and Features

List of included accessories and their functions.

IMPORTANT

WARNING

Specifications

Charging and Operating

Using your toothbrush

Start Brushing

Instructions for starting to brush with the toothbrush.

Brush heads

Connecting your toothbrush to your Smartphone

Cleaning recommendations

Instructions for cleaning the toothbrush and its accessories.

Accessories

Charging Travel Case (h)

Details on charging the handle using the travel case.

Travel Case (g)

Instructions for storing the toothbrush in the travel case.

Brush head holder stand (f); Brush head holder with cap (e)

Information on storing brush heads in holders.

Zipper Pouch; Magnetic Pouch

Instructions for using zipper and magnetic pouches for storage.

Guarantee

Information

Bluetooth radio module

Details about the Bluetooth radio module and its performance.

Warranty - Exclusions and Limitations

Details on what the limited warranty covers and excludes.

Warranty replacement brush heads

Information regarding warranty for replacement brush heads.

Oral-B 3758a Specifications

General

Model	3758a
Pressure Sensor	Yes
Timer	2-minute timer with 30-second intervals
Power Source	Rechargeable Battery
Brush Head Compatibility	Compatible with Oral-B brush heads
Brushing Modes	Daily Clean
Waterproof Rating	Waterproof

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