Mastering Your YEEDI S20 Infinity Ultra: A Step-by-Step Guide to One-Pass Deep Cleaning
Introduction
Robot vacuums have come a long way, but even the best can miss stubborn spots. The YEEDI S20 Infinity Ultra changes the game with spray-before-clean pre-treatment and a system designed to tackle everyday mess in a single pass. This guide walks you through every step to unlock its full potential.

What You Need
- YEEDI S20 Infinity Ultra robot vacuum – the main unit
- Charging dock with power adapter
- Clean water and YEEDI-approved cleaning solution (avoid third-party liquids that may damage components)
- Fully charged battery – check via the YEEDI Home app
- Smartphone with YEEDI Home app installed and connected to your home Wi-Fi
- Clear floor space – remove obstacles like cords, small rugs, and clutter
Step-by-Step Guide
Step 1: Unbox and Set Up Your Robot
Remove all packaging, including tape and protective film from sensors. Place the charging dock on a hard, flat surface against a wall with at least 3 feet of clearance on each side. Plug the dock into a power outlet. Insert the robot onto the dock until you hear a click and the charging indicator lights up. Download the YEEDI Home app from your app store, create an account, and follow on-screen instructions to connect the robot to your Wi-Fi network (2.4 GHz recommended).
Step 2: Fill the Water Tank and Add Cleaning Solution
The S20 Infinity Ultra uses a combined water-and-solution tank for its pre-treatment spray. Lift the top cover and slide out the tank. Fill the clean water compartment to the “Max” line, then add the recommended amount of YEEDI cleaning solution (usually 1–2 capfuls) to the solution compartment. Do not mix both in one chamber. Reinsert the tank firmly until it locks. The robot’s sensors will detect when liquid is low and prompt a refill.
Step 3: Configure Pre-Treatment Mode in the App
Open the YEEDI Home app and navigate to the cleaning settings. Locate the “Pre-treatment” or “Spray before clean” option. Enable it and select the intensity: Light for daily maintenance, Standard for typical messes, or Heavy for stubborn spots like dried-on spills. You can also set a schedule for pre-treatment to activate automatically before cleaning. Save your settings.
Step 4: Prepare Your Home for a Single Pass
To get the “one-pass” promise, ensure floors are free of obstacles. Pick up loose cords, small toys, and fragile items. Close doors to rooms you don’t want cleaned. If you have thresholds higher than 2 cm, they may need a ramp (not included). For best results, sweep or quickly hand-pick any large debris that the robot might choke on (e.g., socks, cables). The robot’s sensors will map the area, but a clear path helps.

Step 5: Start the Cleaning Cycle
Tap the “Clean” button on the robot or start via the app. The robot will first spray a fine mist of cleaning solution over detected high-traffic areas or stains (using its AI to identify spots). After a 30-second dwell time, it proceeds to vacuum and mop simultaneously. The spray-before-clean action loosens dirt, so the brush and mop can lift it in one pass. Monitor progress on the app’s map – you’ll see real-time coverage. If the robot returns to the dock to empty dust or refill water, it will resume cleaning automatically.
Step 6: Post-Cleaning Maintenance
Once cleaning is complete, empty the dustbin, clean the mop pads, and rinse the water tank. Check the pre-treatment nozzles for clogs (wipe with a damp cloth if needed). Recharge the robot – it returns to the dock automatically. Run a self-cleaning cycle for the mop pads if your model supports it. Store the robot on its dock so it’s ready for the next session.
Tips for Best Results
- Use fresh cleaning solution – old or expired solutions can clog the spray system.
- Pre-treat manually for very old stains – if a stain has set for days, spray a small amount of solution directly before the robot’s cycle.
- Run pre-treatment only for spot cleaning – you can disable vacuuming in the app if you want just the spray action for a specific area.
- Schedule regular cleaning – once a day prevents buildup and ensures the single pass remains effective.
- Keep the sensors clean – wipe the cliff sensors and docking sensors monthly to avoid navigation errors.
- Use the “Zone Cleaning” feature – focus pre-treatment spray on kitchens and entryways where messes are common.
- Monitor water levels – the robot needs a full tank for pre-treatment to work over larger areas. Refill mid-cycle if needed.
By following these steps, you’ll turn your YEEDI S20 Infinity Ultra into a powerful ally for effortless, deep-cleaning floors – no double passes required.
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