RVC-D4000SL+ TROUBLESHOOTING

Problem Solution
Unable to power on

1. The battery is low

2. The ambient temperature is too low (below 0°C) or too high (above 35°C)

Robot fails to start sweeping Low battery level. Charge it to full battery level
Robot cannot return for charging

1. Too many barriers around auto clean base. Place auto clean base in an unblocked area.

2. Robot is too far from auto clean base. Place robot near auto clean base and try again

 Abnormal robot actions Please shut down and restart the robot
Abnormal sound during cleaning Please check and clean the foreign matters on the main brush, side brush, left/right wheel after the machine is turned off
Cleaning performance deteriorates or dust drops

1. Dust box is full. Please empty the dust box.

2. Filter screen is blocked. Please clean the screen.

3. Main brush is blocked by any foreign object. Please clean the main brush.

Robot is offline

1. Weak wi-fi signals. Make sure robot is in proper coverage of Wi-Fi signals.

2. Wi-Fi connection fails. Reset Wi-Fi connection and download the latest app and try again

Robot fails to proceed at breakout point

1. Make sure do not disturb mode is not activated, which will disable proceeding at breakout point.

2. Proceeding at breakout point is unavailable when manually start recharging by performing operations in the app or short pressing recharging button or the appliance is moved to the auto clean base

Unable to charge Make sure there is sufficient spaces around auto clean base, and there is no dust or blockage on the surface of electrode of auto clean base
Fail to do scheduled cleaning

1. Make sure the equipment has been connected to the network, as disconnection from network will fail sync and scheduled cleaning task.

2. Make sure Do Not Disturb mode is not activated, which will deactivate scheduled cleaning

Robot is always offine Please ensure that the robot network configuration is successful and that the robot is always within the coverage of Wi-Fi signal
Robot fails to connect to the app Ensure that the robot and the auto clean base are in the area with good Wi-Fi signal; reset Wi-Fi according to the steps described in the Instruction Manual; then pair again.
Fault message Solution
Place robot on a horizontal ground and start it It is detected that robot stays inclined. Place robot on a horizontal ground and start it, or perform leveling in App and then restart robot
Put the robot on the ground to start The wheel is suspended. Please move to the new position to start
After a long-distance displacement, start the cleaning task again Manually moving the robot will cause routing to fail. Please start the cleaning task again.
The laser radar is entangled or stuck. Please clean it up. The radar is entangled by fiber. Please remove any fiber.
Please make sure the laser ranging sensor is not blocked before starting. Laser ranging sensor is blocked or jammed by foreign matter. Remove the blockage or foreign matter. If removal is impossible, relocate the robot and then start it.
Make sure that visual recognition sensor is not blocked. Visual recognition sensor is blocked or jammed by foreign matter. Remove the blockage or foreign matter. If removal is impossible, relocate the robot and then start it.
Please confirm that the visual recognition sensor is not blocked. The visual recognition sensor is blocked or jammed by foreign objects, please remove the obstructed object or foreign objects. If it cannot be cleared, please move the host to a new location to start
Please clean the cliff sensor and move to a new position to start it The robot is off ground. Relocate and restart the robot. Cliff sensor is dirty. Clean the cliff sensor
Check the collision sensor and remove any foreign matter on it. Collision sensor is jammed. Remove foreign matter by tapping the sensor. If there is no foreign matter, relocate and restart the robot
Please clean the edge IR sensor. Edge IR sensor may be attached with foreign matter. Please clean it.
The TOF sensor fails. Please check and clean the sensor Front sensor may be attached with foreign matter. Please clean it.
Please clean the surfaces of the front part of the robot and the bottom sensor to remove any dust Front sensor, edge IR sensor or cliff sensor is dusty. Please clean it.
The cliff sensor fails. Please clean and move it to a new position to start Cliff sensor may be attached to foreign matter or dirt. Please clean and move it to a new position to start it.
Laser radar is blocked. Check the laser radar The radar on the top tower is blocked and routing fails. Remove blockage
The dust box has not been cleaned for a long time. Please clean it immediately. Dust box is full. Please empty it.
Virtual wall or forbidden area detected. Please move the robot out of this area The robot is at a virtual wall or forbidden area. Please move it out of the area
Appliance is trapped. Remove any obstacle around the device and try again. Please put the appliance back onto the base.

The robot is trapped by obstacle around it. Please remove any obstacle.

The robot fails to locate base. Place it manually back onto the base

A new environment is detected. Please re-start cleaning task. The robot is in a new environment and no map is created yet. Please re-start vacuuming task.