1. Introduction
Thank you for choosing the TIANHAO Smart Electric Bidet Toilet Seat Cover. This manual provides essential information for the safe and efficient use of your new bidet toilet seat. Please read it thoroughly before installation and operation, and keep it for future reference.

2. Important Safety Precautions
To ensure safe operation and prevent injury or damage, always observe the following precautions:
- Ensure the power supply is 110V AC and properly grounded.
- Do not immerse the product in water or cleaning solutions.
- Do not use abrasive cleaners or harsh chemicals.
- Keep the product away from open flames or heat sources.
- Children, the elderly, or individuals with limited physical capabilities should use the product under supervision or with assistance.
- Do not attempt to disassemble or repair the unit yourself. Contact qualified personnel for service.
3. Installation Guide
This section outlines the general steps for installing your smart bidet toilet seat. Professional installation is recommended if you are unfamiliar with plumbing or electrical work.
3.1 Before You Begin
- Verify that your toilet is compatible with the bidet seat dimensions.
- Ensure you have a grounded 110V AC power outlet within reach of the bidet seat's power cord.
- Turn off the water supply to your toilet.
- Gather necessary tools: screwdriver, adjustable wrench.
3.2 Step-by-Step Installation
- Remove Existing Toilet Seat: Open the bolt covers at the back of your current toilet seat. Use a screwdriver to loosen and remove the mounting bolts, then lift off the old seat and lid.
- Install Mounting Plate: Place the bidet seat's mounting plate over the toilet bowl holes. Insert the rubber cones and mounting bolts through the plate and toilet holes. Secure them from underneath with washers and nuts, but do not overtighten yet.
- Attach Bidet Seat: Slide the bidet seat onto the mounting plate until it clicks into place. Adjust the seat's position for proper alignment, then tighten the mounting bolts securely.
- Connect Water Supply: Turn off the water supply valve to the toilet. Disconnect the existing water supply hose from the toilet tank. Install the provided T-valve adapter to the toilet tank's fill valve. Reconnect the original water supply hose to one end of the T-valve, and connect the bidet seat's water supply hose to the other end of the T-valve.
- Connect Power: Plug the bidet seat's power cord into a grounded 110V AC electrical outlet.
- Restore Water Supply: Slowly open the water supply valve to the toilet. Check for any leaks.
- Initial Test: Allow the bidet seat's water tank to fill (this may take a few minutes). Perform a test run of the bidet functions as described in the Operating section.
4. Operating Instructions
Your TIANHAO Smart Electric Bidet Toilet Seat Cover features an intuitive side control panel for easy operation. The seat is designed with a soft-close mechanism for both the lid and seat, preventing slamming.

4.1 Control Panel Functions
The control panel, located on the side of the seat, provides access to all bidet functions:
- SHOWER / REAR: Activates the posterior wash function.
- BIDET / FRONT: Activates the feminine wash function.
- STOP: Stops any active wash or dry cycle.
- DRY: Activates the warm air dryer.
- AUTO: Initiates an automatic wash and dry cycle.
- NOZZLE POSITION: Adjusts the nozzle's position forward or backward during a wash cycle.
- WATER PRESSURE / TEMPERATURE (LO, MI, HI): Adjusts water pressure and temperature.
- SEAT TEMPERATURE (LO, MI, HI): Adjusts the heated seat temperature.
4.2 Heated Seat Function
The seat offers three temperature settings for comfort:
- Low Grade: Approximately 33°C (91.4°F)
- Mid Range: Approximately 36°C (96.8°F)
- High Grade: Approximately 40°C (104°F)

4.3 Bidet Nozzle Operation
The bidet features an extendable nozzle for effective cleaning. The nozzle self-cleans before and after each use.

4.4 Video Demonstration
Watch this video for a visual guide on the bidet nozzle operation and control panel usage:
5. Care and Maintenance
Regular cleaning and maintenance will ensure the longevity and hygienic operation of your bidet toilet seat.
5.1 Daily Cleaning
- Wipe the exterior surfaces of the seat and control panel with a soft, damp cloth and a mild, non-abrasive cleaner.
- Do not spray water directly onto the control panel or electrical components.
5.2 Nozzle Cleaning
- The bidet nozzle performs an automatic self-cleaning cycle before and after each use.
- For deeper cleaning, you can manually extend the nozzle (refer to the operating instructions for your specific model) and gently clean it with a soft brush and mild soap. Rinse thoroughly.
- Some models may feature UV sterilization for the nozzle, indicated by a blue light during operation.
5.3 Filter Maintenance
Periodically check the water inlet filter for sediment buildup. If clogged, turn off the water supply, remove the filter, clean it under running water, and reinstall.
6. Troubleshooting
If you encounter issues with your bidet toilet seat, refer to the table below for common problems and solutions. If the problem persists, contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| No power / Unit not turning on | Power cord unplugged, circuit breaker tripped, power outage. | Check power connection, reset circuit breaker, verify power supply. |
| No water spray / Weak spray | Water supply valve closed, water inlet filter clogged, low water pressure. | Open water supply valve, clean water inlet filter, check household water pressure. |
| Heated seat not working | Heated seat function turned off, temperature setting too low. | Ensure heated seat is activated and set to desired temperature. |
| Nozzle not extending/retracting | Obstruction, internal malfunction. | Check for obstructions around the nozzle. If none, contact support. |
7. Product Specifications
| Feature | Detail |
|---|---|
| Model | Smart Toilet Seat Cover |
| Power Supply | 110V AC (American Plug) |
| Advanced Function | Buttocks Washing |
| Remote Control | Not Included (Side panel controls) |
| Buffer Cover Plate | Yes (Soft-close) |
| Toilet Seat Type | Open Front |
| Feature | Children's Toilet Seats (implies child-friendly design/mode) |
| Heated Seat Temperatures | Low: 33°C, Mid: 36°C, High: 40°C |
| Material | Plastic |
| Package Dimensions (L x W x H) | 60 cm x 50 cm x 20 cm |
| Package Weight | 15.0 kg |
8. User Tips
- Personalized Comfort: Experiment with different water pressure and temperature settings to find what is most comfortable for you.
- Energy Saving: If your bidet seat has an energy-saving mode, activate it to reduce power consumption when not in use.
- Child Safety: Utilize the 'Children's Toilet Seats' feature if available, which may offer gentler wash settings or a smaller seat opening for younger users.
- Regular Inspection: Periodically check all connections for leaks and ensure the power cord is in good condition.
9. Warranty and Support
For warranty information, technical support, or any questions not covered in this manual, please contact our customer service team:
- Email: z851021@qq.com
- WhatsApp: +86 188 7316 5337
Please have your product model and purchase details ready when contacting support.