Introduction
Congratulations on your purchase of the Philips Sonicare HX2431 Electric Toothbrush. This manual provides essential information for setting up, operating, and maintaining your new toothbrush to ensure effective and gentle oral hygiene. Please read these instructions carefully before first use and keep them for future reference.
What's in the Box
Your Philips Sonicare HX2431 package includes the following components:
- Philips Sonicare HX2431 Toothbrush Handle
- Sonicare Brush Head (with protective cap)
- Charging Base
- USB Charging Cable
For a visual guide on unboxing and assembly, please watch the video below:
Video: Unboxing and initial assembly of the Philips Sonicare HX2431 Electric Toothbrush.
Product Overview
The Philips Sonicare HX2431 is designed for gentle yet effective teeth cleaning. It features a sleek handle, a replaceable brush head, and intuitive controls.

Key features include:
- Power Button: Turns the toothbrush on/off and switches between modes.
- Mode Indicators: Lights up to show the selected cleaning mode (Clean or Sensitive).
- Charging Indicator: Shows battery status.
- Brush Head: Features professional super soft DuPont bristles with a rounded top and 3D cut for effective and gentle cleaning.

Setup
1. Attaching the Brush Head
- Align the brush head with the metal shaft on the toothbrush handle.
- Push the brush head down onto the shaft until it clicks into place. Ensure it is securely attached.
2. Charging the Toothbrush
Before first use, charge your toothbrush for at least 24 hours. The toothbrush is designed to be charged on its charging base.
- Plug the USB charging cable into a compatible USB power adapter (not always included) or a USB port.
- Connect the USB cable to the charging base.
- Place the toothbrush handle onto the charging base. The charging indicator light will illuminate to show that it is charging.

A full charge provides approximately 2 weeks of regular use (based on two 2-minute brushing sessions per day).
Operating Instructions
1. Power On/Off and Mode Selection
The Philips Sonicare HX2431 features two cleaning modes: 'Clean' and 'Sensitive'.
- To Turn On: Press the power button once. The toothbrush will start in the last used mode.
- To Change Mode: While the toothbrush is on, press the power button repeatedly to cycle through the 'Clean' and 'Sensitive' modes. The corresponding indicator light will illuminate.
- To Turn Off: Press and hold the power button for a few seconds, or cycle through all modes until the toothbrush turns off.

2. Brushing Technique
For optimal results, follow these guidelines:
- Wet the bristles and apply a small amount of toothpaste.
- Place the brush head against your teeth at a slight angle towards the gum line.
- Turn on the toothbrush.
- Gently move the brush head slowly across each tooth, allowing the sonic vibrations to do the work. Do not scrub.
- Brush all four quadrants of your mouth for 30 seconds each, for a total of 2 minutes. The built-in timer will guide you.
- After brushing, rinse your mouth and the brush head thoroughly.

Maintenance
1. Cleaning the Brush Head
- After each use, rinse the brush head thoroughly under running water while the handle is still on.
- Turn off the handle and remove the brush head.
- Rinse the brush head and the metal shaft area of the handle separately under running water.
- Wipe the handle with a damp cloth.
2. Cleaning the Handle and Charging Base
- Wipe the entire surface of the handle and charging base with a damp cloth regularly.
- Do not immerse the charging base in water. The toothbrush handle is IPX7 waterproof, meaning it can withstand immersion in water up to 1 meter for 30 minutes.

3. Replacing the Brush Head
For optimal hygiene and performance, replace your brush head every 3 months, or sooner if the bristles become splayed or worn.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Toothbrush does not turn on. | Battery is depleted. | Place the toothbrush on the charging base and ensure it is properly connected to a power source. Charge for at least 24 hours. |
| Toothbrush does not charge. | Charging cable or base not properly connected; faulty power source. | Ensure the USB cable is securely plugged into both the charging base and a working USB power adapter/port. Try a different power source. |
| Weak vibration or reduced performance. | Low battery; worn brush head. | Recharge the toothbrush fully. Replace the brush head if it is old or worn. |
| Brush head falls off during use. | Brush head not securely attached. | Ensure the brush head is pushed down firmly onto the metal shaft until it clicks. |
Specifications
| Feature | Detail |
|---|---|
| Brand Name | Philips |
| Model | HX2431 |
| Item Type | ELECTRIC TOOTHBRUSH |
| Type | Acoustic Wave |
| Power Type | Rechargeable |
| Number of Operating Modes | 2 (Deep cleaning mode, Gentle cleaning mode) |
| Number of Movements per Minute | from 30000 to 50000 |
| Bristle Stiffness | SOFT |
| Material | PVC |
| Age Group | Adults |
| Certifications | 3C, RoHs, CE |
| Package Length | 22 cm |
| Package Width | 12 cm |
| Package Height | 7 cm |
| Package Weight | 0.25 kg |
User Tips
- Check Package Contents: Always verify that all listed components, including the charging base and USB cable, are present upon unboxing. If a wall adapter is not included, ensure you have a compatible USB power source.
- Gentle Pressure: Let the sonic technology do the work. There's no need to apply excessive pressure, which can be harmful to gums and teeth.
- Quadrant Brushing: Utilize the built-in timer to ensure you brush all areas of your mouth evenly. Divide your mouth into four quadrants and spend 30 seconds on each.
- Regular Charging: To maintain optimal battery life and performance, charge your toothbrush regularly, especially if you notice a decrease in vibration intensity.
- Brush Head Hygiene: Always rinse your brush head thoroughly after each use to remove toothpaste residue and debris.
Warranty and Support
For warranty information, product support, or to inquire about replacement parts, please refer to the official Philips Sonicare website or contact Philips customer service directly. Keep your proof of purchase for any warranty claims.