1. The robot will automatically clean the areas that it has missed. Do not move it or block its cleaning route.
2. Because every home setting is different, spatial analysis discrepancy may happen. If the robot hasn’t covered some areas, put it in another spot manually and restart the cleaning cycle.
​​​​​​​3. Before using the robot, clear excessive objects on the floor that may block its cleaning path (e.g. cables, slippers, upright fan). The robot cannot clean narrow spaces which are smaller than itself. Rearrange the furniture and settings for better cleaning results.

1. The water tank is not installed and installed in right place.
2. Check if the water tank is installed correctly.
(*Hold the water tank forward;)
(*Align the two ends of the main unit on both sides of the water tank;)
(*Press the water tank after aligning, and confirm the installation after hearing the sound ‘Ka’)

1. Check that the roller brush and scraper are properly installed.
2. Check the filter for blockage and take out the filter and clean it.
3. Regularly clean the roller brush and the hanging strip and replace if necessary.
4. Please try to fill it with water every time you use it.

1. The water tank is free of water or blocked, add water, check the water outlet.
2. The dirty tank is full and clean the dirty tank.
3. Check if the clean water is mistakenly loaded into the dirty tank.
4. Check if the water tank is not installed well.

The dirty tank is full, clean the dirty tank.

1. The standby time and charging is too long, resulting in excessive battery power loss. Try again with full charge.
2. The machine is stuck, etc., causing the machine to stop alarming, checking the machine and cleaning up.
3. After the machine is cleared by default, return to the starting point and select the planning cleaning mode, which is suitable for large-scale comprehensive cleaning. The robot needs to start against the wall.

The W400 is mainly based on cleaning the ground. It is recommended to clear large pieces of garbage before using W400 cleaning the ground.

1. Need to press and hold the ‘CLEAN ‘key.
(Turn on, press and hold ‘CLEAN’ for 1s)
(Turn off, press and hold ‘CLEAN’ for 3s, Release the button after a sound alert)
2. The machine has no power, charge robot fully.

After the scrubber wipes the ground, the dirty water is sucked into the dirty tank from the middle, so the position of the roller brush near the suction port will be more wet.

1. The roller brush is clogged, check if the roller brush is stuck by foreign matter.
2. Clean the ends of the brush, attached hair.

Confirm that the machine is in the edge mode, and the wall mode will stop cleaning when the robot cannot find the fence.

1. The water tank is free of water or blocked, add water, check the water outlet.
2. The water tank is not installed and installed in right place.
3.Check the Clean water inlet and Sprinkler nozzle for blockage.

1.  Check the status of the Vent inlet and outlet and perform maintenance cleaning on the two sealing edges.
2.  After removing the filter, press the water tank ejector lever to ensure that the Vent inlet and outlet are opened. Rinse the two ports with water. If any debris is stuck at the two ports, clean it in time to ensure that the water tank main body works normally.
3.  Regularly clean the edge of the water inlet, the water tank cover, the edge of the dirty spout, and the soft cover of the pouring spout to ensure the sealing of the water tank.