U5
The built-in deodorizer keeps your bathroom fresh, and the booster pump assisted system ensures strong flush even with low water pressure.

U5
Absolutely. You get warm water wash with adjustable temperature and pressure, plus a powerful air dryer.

U5
Yes, the heated seat is adjustable and auto-activated when you approach.

U5
Yes, both U5 and G5 feature auto open close lid with motion sensor.

U5
The aromatherapy deodorization activates automatically when you sit on the toilet. You can adjust the scent intensity via the remote control or by voice command ("Set aromatherapy to high/medium/low"). To refill the essential oil cartridge, open the small cover on the right side of the toilet body and replace the cartridge. A refill reminder will appear on the remote screen when low.

U5
The toilet automatically detects the load size (light or heavy) and adjusts the flush power accordingly—no action needed. To manually flush, simply press the "Flush" button on the remote control or use the foot sensor (tap once for full flush, twice for light flush). The automatic mode can be disabled in the settings if you prefer manual control.

U5
Press the "Light" button on the remote control to cycle through preset colors (e.g., blue, green, red, purple). Press and hold the button for 3 seconds to turn the ambient light off. You can also adjust brightness using the remote's settings menu. Voice command example: "Change light to blue."

U5
First, check if the foam liquid reservoir (located under the top cover near the hinge) is filled with approved foam solution. If empty, refill it. The foam shield activates automatically when you sit; ensure the seat sensor is unobstructed. You can also manually start a foam cycle via the remote. If issues persist, clean the foam nozzle with a soft brush.

Navigate to the remote's settings menu, select "Sensor Range," and choose Near, Medium, or Far. Alternatively, use voice command: "Set sensor distance to near." Factory default is Medium. Make sure the sensor area on the front of the toilet is clean and free from obstructions.

U5
Ensure the foot sensor area (located at the bottom front of the toilet) is clean and dry. A gentle, quick kicking motion toward the sensor triggers the lid flip. You can adjust sensitivity in the remote settings under "Foot Sensor Sensitivity." If the issue continues, try resetting the toilet by unplugging it for 30 seconds.

U5
Instant heating provides continuous warm water. Check the temperature setting on the remote (range 32–38°C / 90–100°F) and increase if needed. Allow 2–3 seconds for the heater to reach the set temperature after starting a wash. If the water remains cold, ensure the toilet is properly plugged in and the heating element is enabled (no error codes on display).

U5
Wake the system by saying "Hey Hygina" or pressing the voice button on the remote. Common commands include: "Open lid," "Close lid," "Flush," "Start wash," "Stop wash," "Turn on deodorizer," "Set seat temperature to 38°C," and "Change light to blue." The system understands multiple languages; set your preferred language in the remote settings.

U5
UV sterilization activates automatically after each use when the lid is closed. A small blue indicator light on the side of the toilet will illuminate during the sterilization cycle (typically lasts 3 minutes). You can also manually start a cycle via the remote. Keep the lid closed for effective sterilization.

U5
Yes, the dual waterway design ensures that washing water is fresh, filtered, and completely separate from the water used for flushing. This guarantees hygienic cleaning with no cross-contamination. The filter should be replaced every 6 months (indicated by remote alert).

U5
Yes. On the remote, go to Settings > Auto Function > Auto Open/Close, and set to "Off." To re-enable, follow the same steps. You can also disable it via voice command: "Turn off auto lid." Note that manual operation (buttons or foot sensor) will still work.

U5
Press the "Seat Heat" button on the remote to cycle through temperature levels (off, low, medium, high). If you have enabled four-season temperature sensing mode, the seat temperature adjusts automatically based on ambient temperature. To override, press and hold the "Open/Close Seat" button for 3 seconds to exit sensing mode, then manually set desired temperature.