RO249458

[L40 Ultra] Doesn’t seat into the charging base

My unit worked properly initially but it now doesn’t return and seat properly in the base to charge.  It repeatedly backs up and enters the base but something isnt working properly.  What do I need to do?
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4 Comment

NYBruce 1 Floor
I got the same issue. Worked fine until few days ago, keep circling and hitting the wall. Not sure if relate to firmware update. Open support ticket already, waiting for reply.
2026-1-21 07:49:13 US Translate

AR167283 2 Floor
Got the same problem... circling like a dog before laying down ;)
2026-1-21 13:35:52 US Translate

Hi, please kindly try the following to do troubleshooting see if it works:

"1. **Check the base station adapter plug**:
- Please check if the base station adapter plug is loose and if the base station is properly powered. Check if the rocker switch on the back of the base station is in the ON position and ensure that the base station indicator lights are on.
2. **Test the recharge function**:
- Please place the robot 1-2 meters in front of the charging station, then short-press the recharge button to observe whether it can be recharged successfully.
- If it can be recharged successfully, please confirm the following:
- The charging station needs to be placed against the wall. It is recommended to leave 0.5 meters on each side and no obstacles in the 1.5 meters in front.
- Please make sure that the charging station is away from signal interference devices, such as routers, TVs, etc.
- Make sure there are no mirror reflectors (such as mirrors, windows, etc.) on the opposite side to avoid affecting the navigation of the machine.

3. **Confirm that the laser sensor is working properly**:
- Please confirm whether the LDS laser sensor on the top rotates and works normally when the robot starts working from the charging station. Observe whether the sensor has any abnormal sound or behavior.

4. **Check the driving wheel**:
- During the robot's operation and return to the base station, please check whether the driving wheel is slipping, stuck or trapped. If this is the case, please wipe and clean the driving wheel to ensure that it is operating normally.

5. **Restart the robot**:
- If the above checks are all ruled out, it is recommended that the user try to restart the machine and clean again.

6. **Precautions for changing the base station position**:
- When the user changes the base station placement, make sure the robot is placed on the new base station and start the cleaning test from the base station.

7. **Reset**:
- If the problem still exists after restarting, try to reset the robot host. After resetting, move the charging station to an open area and try cleaning again.

8. **Arrange after-sales repair**:
- If the problem is still not solved after the above checks, please arrange after-sales repair of the whole machine in time."
2026-1-21 21:13:04 US Translate

LY984574 4 Floor
How to reset the robot
2026-1-22 02:51:39 US Translate

UID:RO249458 US
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