Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Loniko ST945B Smart Toilet. This tankless, elongated electric toilet features a built-in bidet, heated seat, dual auto flush, foot sensor, warm water wash, air dryer, and LED display, designed to enhance your bathroom experience with convenience and hygiene.
Please read this manual thoroughly before installation and use to ensure proper function and safety.
1. Setup and Installation
The Loniko ST945B Smart Toilet is designed for straightforward installation. It fits a standard 12-inch rough-in and includes all necessary accessories. Ensure your bathroom has a nearby power outlet and sufficient rough-in distance before beginning.
1.1 Pre-Installation Checks
- Verify the rough-in distance is 12 inches.
- Confirm a 1/2-inch angle valve is present for water supply.
- Ensure a power outlet (16-20 inches above ground) is available within reach of the toilet's power cord.
- Check that the sewage outlet is 11.81 inches away from the wall and has a diameter of 3.94 inches.

Figure 1.1: Product dimensions and essential installation notes. Note the required distances for the angle valve, wall socket, and sewage outlet.
1.2 Unboxing and Components
Carefully unbox the smart toilet and all its components. The package includes the one-piece toilet, user manual, remote control, mounting bracket, mounting screws, angle valve, wax ring, flange, positioning template, and spare battery.

Figure 1.2: Overview of all included installation accessories and the toilet unit.
1.3 Step-by-Step Installation
- Prepare the Floor: Ensure the floor around the sewage outlet is clean and level.
- Install Flange: Place the flange over the sewage outlet and secure it to the floor using the provided screws.
- Apply Wax Ring: Attach the wax ring to the bottom of the toilet around the drain hole.
- Position Toilet: Carefully align the toilet with the flange and gently lower it into place. Ensure a secure fit.
- Secure Toilet: Use the mounting screws and decorative caps to firmly secure the toilet to the floor.
- Connect Water Supply: Attach the flexible water supply hose from the angle valve to the toilet's water inlet. Tighten securely to prevent leaks.
- Connect Power: Plug the toilet's power cord into the dedicated wall outlet.
- Seal Base: Apply a bead of silicone sealant around the base of the toilet where it meets the floor for a clean finish and added stability.
Video 1.1: A detailed guide on how to install the Loniko ST945 Smart Toilet, demonstrating each step from preparation to final connections.
2. Operating Instructions
Your Loniko ST945B Smart Toilet offers a range of intelligent features for enhanced comfort and hygiene. All functions can be controlled via the wireless remote or the side rotary knob.
2.1 Automatic Lid Opening and Closing
The toilet features radar and foot sensors for hands-free operation. The lid will automatically open when you approach and close after a set period or when you step away.

Figure 2.1: The smart sensor detects your presence, automatically opening the toilet lid for a touch-free experience.
2.2 Flushing Options
The toilet offers a powerful 360° siphon jet system with dual flush modes for water efficiency. Choose from multiple flush options:
- Auto-Leave Flush: Flushes automatically when you leave.
- Foot Sensor Flush: Activate flush with a foot gesture.
- Remote Flush: Use the remote control to flush.
- Side Knob: Manual flush activation via the side rotary knob.
- Dual Flush: 0.92 GPF for half flush (seat time < 30s or foot sensor) or 1.28 GPF for full flush (seat time > 30s).

Figure 2.2: Illustration of the powerful and efficient dual flush system, including remote and sensor activation.
2.3 Heated Seat and Warm Water Wash
Enjoy consistent comfort with the heated seat and instant warm water bidet. Both feature four adjustable temperature levels (OFF, 93°F, 96°F, 99°F) for a personalized experience.

Figure 2.3: The heated seat provides comfort, especially during colder seasons, with multiple temperature options.

Figure 2.4: The instant warm water system ensures a hygienic and comfortable bidet wash.
2.4 Multi-Cleaning Modes and Warm Air Dryer
The bidet offers posterior, feminine, and oscillating sprays with adjustable pressure and nozzle position. After washing, a multi-level warm air dryer minimizes toilet paper use.

Figure 2.5: Multiple cleaning modes, including hip wash, feminine wash, and mobile wash, with adjustable water pressure.

Figure 2.6: The warm air dryer provides a gentle and effective drying experience, reducing the need for toilet paper.
2.5 Smart Display, Remote Control, and Night Light
Manage all functions with the wireless remote control or the side rotary knob. The LED display shows real-time temperatures for the seat, water, and dryer. A soft LED night light provides visibility in the dark.

Figure 2.7: The wireless remote control allows easy access to all toilet functions.

Figure 2.8: The integrated LED display provides clear, real-time information on current settings.

Figure 2.9: The soft LED night light illuminates the bowl, making nighttime use safer and more convenient.
2.6 Soft Close Lid
The toilet lid features a soft-close mechanism, preventing slamming and ensuring quiet operation.

Figure 2.10: The soft-close lid ensures quiet and gentle operation, enhancing durability and user comfort.
3. Maintenance
Regular maintenance ensures the longevity and optimal performance of your smart toilet.
3.1 Nozzle Self-Cleaning
The stainless steel bidet nozzle features a self-cleaning function, ensuring hygiene before and after every wash. No manual cleaning of the nozzle is typically required.
3.2 General Cleaning
- Use a soft cloth and mild, non-abrasive cleaner to wipe down the exterior surfaces.
- For the bowl, use standard toilet bowl cleaners. Avoid harsh chemicals on electronic components.
- Do not spray water directly onto the electronic parts of the toilet.
4. Troubleshooting
If you encounter any issues with your Loniko ST945B Smart Toilet, please refer to the following common solutions:
- No Power/Display Off: Check if the power cord is securely plugged into a working outlet. Ensure the circuit breaker is not tripped.
- Bidet Not Working/Weak Spray: Verify the water supply valve is fully open. Check for any kinks in the water supply hose. Ensure the water pressure in your home is within the required range (22-108 psi).
- Heated Seat/Water Not Warm: Check the temperature settings on the remote control or side knob. Allow a few minutes for heating elements to reach the desired temperature.
- Auto Flush Not Activating: Ensure the sensors are clean and unobstructed. Check the remote control for any specific settings that might disable auto-flush.
- Remote Control Not Responding: Replace the batteries in the remote control. Ensure there are no obstructions between the remote and the toilet's receiver.
For persistent issues, please contact customer support as detailed in the Warranty & Support section.
5. Specifications
| Feature | Detail |
|---|---|
| Model Number | ST945B |
| Product Dimensions | 26.77"D x 15.94"W x 17.72"H |
| Material | Ceramic, Polypropylene |
| Item Weight | 84 Pounds |
| Flush Type | Dual Flush (0.92 GPF / 1.28 GPF) |
| Water Pressure Range | 22-108 psi |
| Heated Seat Temperature | Adjustable (OFF, 93°F, 96°F, 99°F) |
| Water Wash Temperature | Adjustable (OFF, 93°F, 96°F, 99°F) |
| Air Dryer Temperature | Multi-level adjustable |
| Rough-in | Standard 12-inch |
| Included Components | One-piece Toilet, User Manual, Remote Control, Mounting Hardware, Angle Valve, Wax Ring, Flange, Positioning Template, Baby Seat |
6. Warranty & Support
Your Loniko ST945B Smart Toilet is backed by a 12-month free replacement parts service. For any inquiries, technical assistance, or warranty claims, please contact Loniko customer support.
Customer support is available 24/7 to assist you with any questions or concerns you may have regarding your product.
For further assistance, please visit the product page on Amazon or contact Loniko directly through their official channels.