1. Product Overview
The TOTO WASHLET S300e is an electronic bidet toilet seat designed to provide advanced personal cleansing. It features a slim design and incorporates several technologies for enhanced hygiene and comfort.
Key features include:
- Instant and continuous warm water stream with AIR-IN WONDER WAVE technology for a gentle yet effective clean.
- SoftClose heated bidet seat for consistent warmth.
- Air deodorizer with powerful air filters to neutralize odors.
- Adjustable warm air dryer.
- PREMIST technology to prevent waste from adhering to the toilet bowl.
- EWATER+ system for cleaning the wand and misting the toilet bowl.
- Convenient remote control with personalized water cleansing settings and 2 user memory settings.

Image: Key features of the TOTO WASHLET S300e, including heated seat, warm air dryer, deodorizer, and the AIR-IN WONDER WAVE cleansing stream.

Image: Additional features of the TOTO WASHLET S300e, highlighting the SoftClose seat, continuous warm water supply, remote control, and EWATER+ for hygiene.
2. What's Included & Required
2.1 Included Components:
- Electronic bidet seat (WASHLET)
- Mounting bracket
- Remote control with batteries (2 AA batteries included)
- Tee-connector
2.2 What's Required:
- 120V GFCI Outlet (within 3 feet of the toilet)
- Tools: Screwdriver, adjustable wrench, measuring tape.

Image: A visual guide to the components included with the WASHLET S300e and the tools and electrical outlet required for installation.
2.3 Optional Accessories:
For toilets with difficult-to-reach fill valves, optional accessories like a 2-inch extender (9AU321-A) or a 6-inch hose (THU9090R) may be needed.

Image: Illustration of optional accessories, including a 2-inch extender and a 6-inch hose, designed to facilitate installation on toilets with limited access to the fill valve.
3. Installation
Follow these steps for proper installation of your TOTO WASHLET S300e. It is recommended to watch the installation videos for a visual guide.
3.1 Pre-Installation Checks:
- Ensure you have a Ground Fault Circuit Interrupter (GFCI) outlet within 3 feet of the toilet.
- Verify your toilet is compatible with a round bidet seat. Refer to the fit guide below.

Image: A fit guide illustrating the differences between elongated and round toilet bowls and how to measure for proper bidet seat fitment. The S300e is for round toilets.
3.2 Step-by-Step Installation:
- Remove the existing toilet seat.
- Clean the surface around the mounting holes.
- Install the WASHLET seat mounting bracket.
- Place the WASHLET seat onto the bracket and slide it back until it clicks.
- Adjust the seat and bracket for proper alignment over the toilet rim.
- Tighten the bracket screws.
- Shut off the water supply to the toilet and flush to relieve pressure.
- Disconnect the supply tube from the fill valve.
- Screw the WASHLET junction tee onto the fill valve (finger-tight only, do not overtighten).
- Connect the white supply line from the WASHLET to the junction tee.
- Reconnect the toilet's original supply line to the junction tee.
- Turn the water supply back on and check for leaks.
- Plug the WASHLET into the GFCI outlet and turn it on.

Image: Visual representation of the four main installation steps for the TOTO WASHLET S300e.
3.3 Installation Videos:
Video: BILT Install Demo - A detailed 3D interactive guide for installing the TOTO WASHLET S300e.
Video: WASHLET Install Video - A comprehensive video guide demonstrating the installation process for the TOTO WASHLET.
4. Operating Instructions
The TOTO WASHLET S300e offers various cleansing and comfort functions controlled via the included remote.
4.1 Remote Control Functions:

Image: Layout of the WASHLET S300e remote control, showing all buttons and their respective functions for personalized cleansing and comfort.
- STOP: Stops washing or drying.
- REAR/SOFT: Provides a wider water stream for effective rear cleansing. Press once for softer spray, twice for added pressure.
- FRONT/WIDE: Delivers a soft stream for delicate areas. Press once for narrow spray, twice for wide spray.
- PULSATING: Varies the water pressure for a massage-like effect.
- OSCILLATING: Moves the wand back and forth for a broader cleansing area.
- PRESSURE: Adjusts the water pressure of the stream.
- POSITION: Adjusts the position of the wand forwards or backwards.
- DRYER: Activates the warm air dryer.
- USER: Two user memory settings for quick access to personalized preferences.

Image: Visual guide to the adjustable water spray and pressure settings, showing different cleansing patterns like rear, soft rear, front, oscillating, and wand position adjustment.
4.2 Cleansing Technologies:
- AIR-IN WONDER WAVE: Infuses air into each water droplet for a gentle yet effective cleansing experience.
- PREMIST: Automatically sprays water over the toilet bowl surface before each use to help prevent waste from adhering.
- EWATER+: Electrolyzed water cleans the inside and outside of the wand before and after use, and helps to clean the toilet bowl upon departure.
Video: Air-In Wonderwave Stream Technology - Demonstrates how air is infused into the water stream for a comfortable and effective clean.
Video: Toto Premist Video - Shows the PREMIST function in action, spraying water to keep the bowl clean.
Video: EWATER+ Cleaning - Illustrates the EWATER+ system's function in cleaning the wand and toilet bowl.
4.3 Comfort Features:
- Heated Seat: Provides adjustable warmth for comfort.
- Warm Air Dryer: Reduces the need for toilet paper.
- Air Deodorizer: Neutralizes odors using powerful air filters.
Video: Comfortable Heated Seat - Shows the heated seat feature of the WASHLET S300e.
Video: Warm Air Dryer - Demonstrates the warm air drying function for added comfort.
Video: Air Deodorizer Video - Explains the air deodorizing feature that helps maintain a fresh bathroom environment.
5. Maintenance
Regular maintenance ensures optimal performance and hygiene of your WASHLET S300e.
- Wand Cleaning: The self-cleaning wand is automatically cleaned with EWATER+ before and after each use.
- Toilet Bowl Cleaning: The PREMIST function helps keep the bowl clean by misting it before use. EWATER+ also helps clean the bowl upon departure.
- General Cleaning: For external cleaning, use a soft, damp cloth and mild, non-abrasive cleaner. Avoid harsh chemicals.
- Quick Release: The WASHLET features effortless removal for simplified cleaning at the touch of a button.

Image: Detailed view of the WASHLET's design elements contributing to hygiene and ease of maintenance, including the wand door, quick release mechanism, and self-cleaning wand.
6. Troubleshooting
If you encounter issues with your WASHLET S300e, refer to the following common solutions. For further assistance, contact TOTO Technical Support.
- Wand Not Extending: This indicates the self-cleaning function has started, or the WASHLET is ready for use.
- Spray Function Not Working: The WASHLET has a seat sensor. To test the spray, press down on the seat until you hear a click, then cover the spray from the wand with your hand to prevent getting wet.
- Water Pressure Too Soft: The rear spray setting has two options: soft and strong. Press the BACK button once for a softer stream and a second time for added pressure. Adjust intensity controls on the remote.
- Noise from Unit: If the unit is noisy, it might be the anti-odor fan. This can be disabled via the remote control.
- No Power: Ensure the unit is properly plugged into a working GFCI outlet and the power button on the unit is pressed. Check the circuit breaker if necessary.
7. Specifications
| Attribute | Value |
|---|---|
| Color | Cotton White |
| Brand | TOTO |
| Material | Plastic |
| Style | S300E | Classic Lid |
| Shape | Round |
| Product Dimensions | 18.88"L x 15.06"W |
| Item Weight | 13.5 Pounds |
| UPC | 739268232099 |
| Global Trade Identification Number | 00739268232099 |
| Manufacturer | TOTO |
| Part Number | SW573#01 |
| Batteries | 2 AA batteries required. (included) |
| Voltage | 120 Volts |
| Installation Method | ROUND FRONT TOTO TOILET |
| Temperature Range | 86 - 104 Degrees Fahrenheit |
| Coverage | 15 Amperage |
| Certification | certified frustration-free |
| Usage | Inside |
| Date First Available | September 26, 2012 |
8. Warranty & Support
8.1 Warranty Information:
The TOTO WASHLET S300e comes with a Manufacturer One Year Limited Warranty.
8.2 Technical Support:
For assistance, please contact TOTO Technical Support at 1-888-295-8134. Press 4 when prompted. Their expert service team will help solve any questions you may have.

Image: Map indicating the TOTO WASHLET installer network and contact details for technical support.





