1. Introduction
Thank you for choosing the INUS N31 Electric Bidet Seat. This advanced bidet seat is designed to provide unparalleled comfort, hygiene, and convenience. Featuring a tankless direct water supply system, it ensures effective and gentle cleansing while preventing accumulation of dirt and extending the product's lifespan. This manual provides detailed instructions for installation, operation, and maintenance to ensure you get the most out of your new bidet seat.

Figure 1: INUS N31 Electric Bidet Seat, showing the overall design and integrated side control panel.
2. Key Features
- Heated Seat: Enjoy personalized comfort with 4 adjustable seat temperature settings.
- Instant Warm Water: Continuous warm water supply without waiting, ensuring comfort in all environments.
- Night Light: Soft LED illumination for enhanced convenience during nighttime visits.
- Advanced Nozzle Technology: Features 5-level position and 5-level pressure adjustments for Rear Wash, Feminine Wash, and Oscillating Wash. Includes a self-cleaning nozzle for optimal hygiene.
- Smart & Hygienic Design: Incorporates body sensing, a slow-close lid, and IPX4 water resistance.
- Eco Mode: Reduces electricity consumption and saves toilet paper.

Figure 2: Visual representation of the Heated Seat, Instant Warm Water, and Night Light functionalities.

Figure 3: Illustration of the 4-level adjustable water and seat temperature settings, ranging from room temperature to 104°F.

Figure 4: Depiction of the advanced nozzle technology, highlighting Rear Wash, Feminine Wash, Oscillating Wash, and Self-Cleaning functions.
3. Setup and Installation
The INUS N31 bidet seat is designed for easy DIY installation, typically taking less than 30 minutes without the need for plumbing work. Please ensure your toilet is an elongated model and has an electrical outlet nearby.
3.1. Compatibility Check
Before installation, verify that your toilet bowl is compatible with the elongated bidet seat. Refer to the dimensions below:
- Width (W): 17.40 inches
- Length (L): 20.30 inches
- Height (H): 6.30 inches
- Distance from bolt holes to front rim: Over 20.5 inches
- Distance between bolt holes: 5.6 to 7.9 inches
- Distance from tank to bolt holes: Over 1.8 inches

Figure 5: Detailed measurements for checking toilet compatibility with the INUS N31 elongated bidet seat. An electrical outlet is required.
3.2. Installation Steps
- Turn off the water supply valve: Locate and turn off the main water supply valve to your toilet.
- Remove the existing toilet seat: Unscrew and remove your current toilet seat and lid.
- Assemble mounting plate to toilet bowl: Attach the provided mounting plate to the toilet bowl using the included hardware.
- Install bidet to toilet bowl: Slide the INUS N31 bidet seat onto the mounting plate until it clicks into place.
- Install T-valve and connect hoses: Connect the T-valve to the toilet's water supply line and then connect the bidet's water hose to the T-valve. Ensure all connections are secure to prevent leaks.
- Turn on the water supply valve: Slowly turn the water supply valve back on and check for any leaks. Plug the bidet into a grounded electrical outlet.

Figure 6: Step-by-step visual instructions for installing the INUS N31 Electric Bidet Seat.
4. Operating Instructions
The INUS N31 features an intuitive side control panel for easy operation. Familiarize yourself with the functions below:

Figure 7: Layout of the side control panel, indicating buttons for various bidet functions and settings.
4.1. Basic Wash Functions
- Rear Wash: Press the 'Rear Wash' button for a posterior cleanse.
- Front Wash: Press the 'Front Wash' button for a feminine cleanse.
- Kids/Seniors Mode: Activates a gentler wash cycle suitable for children and elderly users.
- STOP: Press to stop any active wash cycle.
4.2. Adjustments and Settings
- Adjustable Nozzle Position: Use the '<>' buttons to move the nozzle forward or backward for optimal cleansing.
- Adjustable Water Pressure: Use the '+' and '-' buttons under 'WATER PRESSURE' to increase or decrease the water spray intensity.
- Adjustable Water Temperature: Use the 'WATER TEMP' button to cycle through 4 temperature levels.
- Adjustable Seat Temperature: Use the 'SEAT TEMP' button to cycle through 4 seat temperature levels.
- Massage: Activates a pulsating water spray for a soothing massage effect.
- Illuminating Night Light: Press the 'NIGHT LIGHT' button to turn the soft LED illumination on or off.
- ECO Mode: Press the 'ECO' button to activate power-saving mode.
4.3. Smart & Hygienic Features

Figure 8: Overview of the bidet's smart and hygienic functionalities, including body sensing for operation, a slow-close lid, IPX4 water resistance, and the integrated night light.
- Body Sensing: The bidet will only operate when a user is seated, ensuring safety and preventing accidental sprays.
- Slow-Close Lid: The seat and lid close gently and quietly, preventing slamming.
- IPX4 Water Proof: The unit is protected against splashing water from any direction.
5. Maintenance
Regular cleaning and maintenance will ensure the longevity and optimal performance of your INUS N31 bidet seat.
5.1. Nozzle Cleaning
The bidet features a self-cleaning stainless steel nozzle. Before and after each use, the nozzle automatically rinses itself. For a more thorough cleaning, press the 'NOZZLE CLEANING' button on the control panel. This will extend the nozzle for manual cleaning with a soft brush and mild detergent. Ensure to retract the nozzle by pressing 'STOP' after cleaning.
5.2. Exterior Cleaning
Wipe the exterior of the bidet seat with a soft, damp cloth and a mild, non-abrasive cleaner. Avoid using harsh chemicals, abrasive pads, or strong solvents, as these can damage the surface.
5.3. Filter Maintenance
Periodically check the water inlet filter for any debris or sediment. If clogged, turn off the water supply, disconnect the hose, and clean the filter under running water. Reinstall securely.
6. Troubleshooting
If you encounter any issues with your INUS N31 bidet seat, please refer to the following common solutions. If the problem persists, contact customer support.
- No water spray or weak spray: Check if the water supply valve is fully open. Ensure the water inlet filter is not clogged. Verify that the bidet is properly plugged into a working electrical outlet.
- No heat for seat or water: Confirm the bidet is powered on and the temperature settings are adjusted correctly. Ensure the ECO mode is not active if you desire immediate heating.
- Leaks: Turn off the water supply immediately. Check all hose connections for tightness. Ensure the gasket in the T-valve connection is properly seated. If a hose is damaged, it may need replacement.
- Bidet not responding: Unplug the bidet from the electrical outlet for 30 seconds, then plug it back in to reset the unit.
7. Specifications
| Feature | Specification |
|---|---|
| Brand | INUS |
| Model | N31 |
| Product Dimensions (L x W x H) | 51.56 x 37.59 x 2.51 cm (20.30 x 14.80 x 0.99 inches) |
| Product Weight | 3.79 kg (8.35 lbs) |
| Color | Blue (variant) |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Light Source | LED (Night Light) |
| UPC | 886828887012 |
8. Warranty and Support
The INUS N31 Electric Bidet Seat comes with a manufacturer's warranty. For specific warranty details, claims, or technical support, please refer to the documentation included with your product or contact INUS customer service directly. When contacting support, please have your model number (N31) and purchase information ready.


