1. Product Overview
The TOTO WASHLET S5 Elongated Electric Bidet Toilet Seat (Model SW3446#01) provides advanced personal cleansing with a focus on hygiene and comfort. This unit features instantaneous warm water heating, PREMIST bowl cleansing, and EWATER+ wand cleaning. It is designed for elongated toilet bowls and comes in Cotton White with a contemporary lid.

Image: TOTO WASHLET S5 Electronic Bidet Toilet Seat with remote control.
Key Features:
- Instantaneous Water Heating: Provides a continuous stream of warm water for cleansing.
- PREMIST: Wets the toilet bowl surface before each use to help prevent waste adhesion.
- EWATER+ Wand Cleaning: Electrolyzed water cleans the wand automatically before and after each use.
- Heated SoftClose Seat: Adjustable temperature settings for comfort, with a gentle closing mechanism.
- Warm Air Dryer: Adjustable temperature settings for post-cleansing drying.
- Air Deodorizer: Neutralizes odors using powerful air filters.
- Night Light: Illuminates the toilet bowl for nighttime use.
- Adjustable Cleansing: Features soft rear spray, rear cleanse, and front cleanse with oscillating or pulsating options.
- Wireless Remote Control: For convenient operation and personalized settings.
2. Important Safety Information
Please read all instructions carefully before installation and use. Failure to follow these instructions may result in injury or product damage.
- Electrical Safety: Ensure the product is connected to a properly grounded 120V GFCI (Ground Fault Circuit Interrupter) outlet. Do not use extension cords.
- Water Supply: Connect the unit to a cold water supply line. Ensure all connections are secure to prevent leaks.
- Children and Individuals with Reduced Capabilities: This appliance is not intended for use by persons with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children should be supervised to ensure they do not play with the appliance.
- Cleaning: Disconnect power before cleaning. Do not use abrasive cleaners or harsh chemicals on the unit.
- Temperature: Avoid direct contact with the heated seat for prolonged periods if you have sensitive skin or are prone to burns.
3. Package Contents
Verify that all components are present before beginning installation:
- TOTO WASHLET S5 Bidet Toilet Seat
- Wireless Remote Control
- Remote Control Holder
- Mounting Bracket and Hardware
- Tee Connector for Water Supply
- Water Supply Hose
- AA Batteries (for remote control)
- Instruction Manual

Image: Visual representation of the WASHLET, remote control, mounting bracket, and tee connector.
4. Setup and Installation
Installation requires basic plumbing and electrical knowledge. If you are unsure, consult a qualified professional.
4.1 Pre-Installation Checklist:
- Toilet Type: Ensure your toilet is an elongated model. Refer to the fit guide below.
- Power Outlet: A 120V GFCI electrical outlet must be available within reach of the WASHLET's power cord.
- Water Pressure: Ensure adequate water pressure for optimal performance.
- Tools Required: Phillips-head screwdriver, measuring tape.

Image: Diagram illustrating the fit guide for elongated and round toilet bowls, indicating minimum dimensions.

Image: Visual of a 120V GFCI outlet, Phillips-head screwdriver, and measuring tape.
4.2 Installation Steps:
- Remove Existing Toilet Seat: Loosen and remove the bolts securing your current toilet seat.
- Install Mounting Bracket: Position the mounting bracket over the toilet bowl holes and secure it with the provided hardware. Adjust the bracket position to ensure proper alignment of the WASHLET.
- Connect Water Supply: Turn off the water supply to the toilet. Disconnect the existing water supply hose from the toilet tank. Install the provided tee connector to the toilet tank's fill valve. Connect the WASHLET's water supply hose to the tee connector and the WASHLET unit. Reconnect the main water supply hose to the tee connector.
- Attach WASHLET: Slide the WASHLET unit onto the mounting bracket until it clicks into place.
- Connect Power: Plug the WASHLET's power cord into the 120V GFCI outlet.
- Restore Water Supply: Slowly turn on the water supply to the toilet and check for leaks.
- Install Remote Control: Insert the AA batteries into the remote control. Mount the remote control holder to a convenient location on the wall using the provided adhesive or screws.
For detailed interactive 3D instructions, download the BILT app:

Image: Screenshot of the BILT app interface showing 3D product instructions.
5. Operating Instructions
The TOTO WASHLET S5 is operated using its wireless remote control. Familiarize yourself with the remote's functions for optimal use.

Image: Diagram highlighting key features of the WASHLET S5, including the wand, heated seat, and various spray functions.
5.1 Basic Cleansing Functions:
- Rear Cleansing: Press the 'Rear' button on the remote for a standard posterior wash.
- Soft Rear Cleansing: Press the 'Soft Rear' button for a gentler posterior wash.
- Front Cleansing: Press the 'Front' button for feminine wash.
- Oscillating Spray: While a cleansing function is active, press the 'Oscillate' button to move the wand back and forth for a wider cleaning area.
- Pulsating Spray: While a cleansing function is active, press the 'Pulse' button for a massaging spray.
- Wand Position Adjustment: Use the arrow buttons on the remote to adjust the wand's position forward or backward during cleansing.
- Water Pressure Adjustment: Use the '+' and '-' buttons to increase or decrease water pressure.
- Stop: Press the 'Stop' button to end any active cleansing function.

Image: Visual guide to Rear Spray, Soft Rear, Front Spray, Oscillating Spray, and Adjustable Wand functions.
5.2 Comfort Features:
- Heated Seat: Press the 'Seat Temp' button to cycle through five temperature settings or turn off the heat.
- Warm Air Dryer: After cleansing, press the 'Dryer' button. Use the '+' and '-' buttons to adjust the air temperature (five settings).
- Night Light: The night light automatically illuminates the bowl in low light conditions. This feature can typically be toggled on/off via the remote's settings menu.
- Air Deodorizer: The deodorizer activates automatically when a user sits on the seat.

Image: Diagram illustrating the Heated Seat, Warm-Air Dryer, Deodorizer, Cleansing Spray, and PREMIST functions.

Image: The WASHLET S5 with its integrated night light illuminating the toilet bowl.
5.3 Advanced Functions:
- PREMIST: This function automatically mists the toilet bowl with water before each use to help prevent waste from sticking. It operates automatically.
- EWATER+ Wand Cleaning: The wand automatically cleans itself with electrolyzed water before and after each use, ensuring hygiene.
- User Profiles: The remote allows for saving up to four personalized user settings for water temperature, pressure, and wand position. Refer to the remote control manual for detailed instructions on setting and recalling profiles.

Image: Cross-section diagram illustrating the instantaneous water heating mechanism.

Image: Comparison of Clean Resin material, which repels liquids, versus conventional materials.
6. Maintenance and Cleaning
Regular cleaning ensures optimal performance and longevity of your WASHLET S5.
6.1 General Cleaning:
- Exterior: Wipe the exterior surfaces of the WASHLET with a soft, damp cloth. For stubborn stains, use a mild, non-abrasive cleaner.
- Seat: Clean the seat with a soft cloth and a mild soap solution. Avoid harsh chemicals or abrasive pads that can damage the finish.
- Do Not Submerge: Never submerge the WASHLET unit in water or spray water directly onto electrical components.
- Power Disconnection: Always unplug the unit from the electrical outlet before performing any extensive cleaning.
6.2 Wand Cleaning:
- The WASHLET S5 features automatic EWATER+ wand cleaning before and after each use.
- For manual cleaning, refer to the remote control manual for instructions on extending the wand. Gently wipe the wand with a soft, damp cloth. Do not use harsh chemicals or bend the wand.
7. Troubleshooting
If you encounter issues with your WASHLET S5, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No water spray | Water supply valve closed; clogged nozzle; unit not powered. | Ensure water supply valve is open. Clean the nozzle. Check power connection and GFCI outlet. |
| No heated water | Water heater setting off; unit not powered. | Adjust water temperature setting on remote. Check power connection. |
| Heated seat not working | Seat heater setting off; unit not powered. | Adjust seat temperature setting on remote. Check power connection. |
| Remote control not responding | Dead batteries; remote out of range; interference. | Replace remote batteries. Ensure remote is within range of the WASHLET. Remove any obstructions. |
| Leaks from connections | Loose connections; damaged seals. | Turn off water supply. Tighten all connections. Inspect seals and replace if damaged. |
| Mounting anchors do not fit | Incompatibility with specific toilet hole sizes. | Contact TOTO customer support for alternative mounting solutions or adapters. |
| Water hose connector incompatibility | Regional plumbing standard differences. | An adapter may be required. Contact TOTO customer support for guidance on obtaining the correct adapter. |
If the problem persists after attempting these solutions, please contact TOTO customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | SW3446#01 |
| Dimensions (L x W) | 21"L x 15.06"W (533mm L x 382mm W) |
| Height | 5.5" (140mm) |
| Seat Height | 1.46" (37mm) |
| Item Weight | 13.5 Pounds |
| Color | Cotton White |
| Material | Plastic |
| Style | Contemporary Lid |
| Shape | Elongated (Oval) |
| Power Supply | 120V AC |
| Batteries (Remote) | 2 AA batteries (included) |
| UPC | 739268467583 |

Image: Diagram detailing the product dimensions of the WASHLET S5.
9. Warranty and Support
TOTO is committed to providing quality products and customer satisfaction.
9.1 Warranty Information:
For specific warranty details, please refer to the warranty card included with your product or visit the official TOTO website. Generally, TOTO products are covered by a limited warranty against manufacturing defects.
9.2 Customer Support:
For technical assistance, troubleshooting, or warranty claims, please contact TOTO Technical Support:
- Phone: 1-888-583-4536 (Press 4 when prompted for technical support)
- Email: techsupport@toto.com
- Hours: 8am - 8pm EST, Monday - Friday

Image: Information on TOTO's quality inspection process and customer support availability.
9.3 Factory-Trained Installer Network:
TOTO offers a network of factory-trained repair and installation technicians. For assistance with installation or service, please contact TOTO Technical Support.

Image: Map indicating locations of TOTO's factory-trained installer network across the United States.





