Dreame L10s Ultra Gen2

Symptomen

• The robot starts up and the movement is abnormal. After 10 seconds a voice prompt announces "Bumper error, please gently tap it to see if it rebounds."
• The robot moves forward and backward and a voice prompt announces "Bumper error, please gently tap it to see if it rebounds."

Oplossingsrichting

The bumper sensor is stuck.

Reparatiestappen

1. Test: Push the bumper with your hand to see whether it is stuck.
2. Test: Perform a BIT test (within 3 minutes of starting up the robot, press and hold the Charge button and quickly press the Power button 5 times at the same time) to determine whether it is the left or right bumper that is malfunctioning.
3. Based on the test results, unplug the wire bundle terminal at the motherboard end of the downward front bumper assembly on the faulty side and then reinsert it. Perform a BIT test to determine whether it is still malfunctioning.
4. Replace the downward front bumper component on the faulty side.
5. Replace the motherboard.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Symptomen

• When the robot starts cleaning on a flat surface, the voice prompt announces "Wheels suspended. Please move me to a flat surface."

Oplossingsrichting

Wheels suspended

Reparatiestappen

1. Test: Perform a BIT test (within 3 minutes of starting up the robot, press and hold the Charge button and quickly press the Power button 5 times at the same time) to determine whether the drive wheels are able to rotate normally.
2. Check whether there are foreign bodies stuck in the wheel
3. Based on the test results, replace the corresponding drive wheel component on the faulty side.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Symptomen

• When the robot starts cleaning on a flat surface, the voice prompt announces "Please clean the cliff sensor."

Oplossingsrichting

Cliff sensor malfunction

Reparatiestappen

1. Test: Clean any dust from the sensor before testing. During the BIT test (within 3 minutes of starting up the robot, press and hold the Charge button and quickly press the Power button 5 times at the same time), test the cliff sensor to determine whether it is faulty.
2. Based on the test results, unplug the wire bundle terminal of the downward front bumper assembly on the faulty side and then reinsert it. Perform another BIT test to determine whether it is still malfunctioning.
3. Replace the downward front bumper component on the faulty side.
4. Replace the motherboard.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Symptomen

• After the robot starts cleaning, the voice prompt announces "Main brush error, please check and clean it."

Oplossingsrichting

There may be foreign bodies entangled in the main brush.

Reparatiestappen

1. Test: First remove the main brush to see if there are foreign objects wrapped around the shaft, remove the foreign objects and perform the BIT test (within 3 minutes of starting up the robot, press and hold the Charge button and quickly press the Power button 5 times at the same time), then perform a brush roller test to see if the brush is rotating normally.
2. Check whether there are foreign bodies stuck in the main brush bearing.
3. Replace the main brush gearbox assembly.
4. Replace the motherboard assembly.
5. This error may occur when using the robot on carpets. Advise the customer to not use the robot on thick carpets.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Symptomen

• After the robot starts cleaning, the voice prompt announces "Side brush malfunction. Please check and clean the side brush."

Oplossingsrichting

There may be foreign bodies entangled in the side brush.

Reparatiestappen

1. Test: First check the side brush and remove any foreign bodies. Perform a BIT test (within 3 minutes of starting up the robot, press and hold the Charge button and quickly press the Power button 5 times at the same time), then perform a side brush test to see whether the side brush is rotating normally.
2. Remove the side brush; check whether there are foreign bodies entangled in the side brush, and then check whether the fault is eliminated after cleaning.
3. Replace the side brush gearbox assembly.
4. Replace the motherboard.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Symptomen

• During cleaning, the voice prompt announces "Right drive wheel error. Please check for debris and clean the drive wheel." or "Left drive wheel error. Please check for debris and clean the drive wheel."

Oplossingsrichting

The robot may be stuck or there may be foreign bodies caught in the main wheel.

Reparatiestappen

1. Test: According to the prompt, check whether there is a foreign body in the wheel on the faulty side.
2. Remove any foreign bodies from the wheels.
3. Replace the faulty wheel module.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Symptomen

• The robot keeps moving abnormally in a small area until it reports an error.

Oplossingsrichting

The robot may be stuck or trapped.

Reparatiestappen

1. Test: Perform a manual BIT test (within 3 minutes of turning on the robot, press and hold the Charge button and quickly press the Power button 5 times) to test all potential sources of fault, including the wheels and bumper sensors.
2. Replace the relevant component based on the test results.
3. Replace the motherboard.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Symptomen

• When the cleaning operation is started, a voice prompt announces "Dust bin not installed, please install it," and the sweeping button is flashing red.

Oplossingsrichting

Dust bin not installed

Reparatiestappen

1. Test: Perform a BIT test (within 3 minutes of starting up the robot, press and hold the Charge button and quickly press the Power button 5 times at the same time) to determine whether the dust bin sensor is faulty.
2. Clean the dust bin and check that the filter magnet has been installed.
3. Replace the filter assembly.
4. Replace the Hall sensor wire assembly.
5. Replace the motherboard assembly.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Symptomen

• While the robot is sweeping, a voice prompt announces "Error, please check the user manual or contact customer service" and the sweeping button is flashing red.

Oplossingsrichting

Strong magnetic field detected

Reparatiestappen

1. Test: Perform a BIT test (within 3 minutes of starting up the robot, press and hold the Charge button and quickly press the Power button 5 times at the same time) to test for abnormal left and right geomagnetic detection.
2. Check that the magnets are still attached to the dust bin and the bottom of the robot.
3. Disassemble the robot to check that the left and right magnet wire assemblies are correctly plugged in.
4. Replace the faulty magnet component.
5. Replace the motherboard assembly.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Symptomen

• After the robot has been charging in the charging station for a period of time, a voice prompt announces "Charging error, please clean charging contacts."

Oplossingsrichting

Charging fault

Reparatiestappen

1. Test: Measure the voltage output of the charging station (in accordance with the test method in 4.2)
2. Test: Disassemble the charging station and check whether the positive and negative wire assembly terminals are loose.
3. Test: Check whether the no-load output voltage of the charging station is between 3.5 V and 4.5 V, and whether the loaded output voltage of the charging station is between 19.5 V and 20.5 V.
4. Tighten the positive and negative terminal screws of the charging station.
5. Replace the charging station.
6. Replace the motherboard assembly.
7. Replace the lower housing structural components.
8. If the fault persists, replace the battery.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Symptomen

• When the robot is charging, a voice prompt announces "Battery overheating or overcooling, please wait until the battery's temperature returns normal, then continue to use."

Oplossingsrichting

Battery fault.

Reparatiestappen

1. Test: Place the robot in the charging station to charge; shortly after a voice prompt announces "Battery overheating or overcooling, please wait until the battery's temperature returns normal, then continue to use."
2. Replace the lithium battery.
3. Replace the motherboard assembly.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Symptomen

• Shortly after the robot is started up, a voice prompt announces "Error, please check the user manual or contact customer service."

Oplossingsrichting

Internal error

Reparatiestappen

1. Test: Perform a BIT test (within 3 minutes of starting up the robot, press and hold the Charge button and quickly press the Power button 5 times at the same time) to test each functional item for abnormalities.
2. Replace the faulty component according to the abnormal items detected by the BIT test.

OEM-document: Maintenance Manual — Error Messages and Repair Methods

Oplossingsrichting

To prevent corrosion, add a charging port sealing ring.

Reparatiestappen

1. To prevent corrosion, add a charging port sealing ring.
2. For all affected models, Please install charging port sealing rings before sending it back to the customer.

Spare parts

Onderdeel	Partnummer	Notities
Charging port sealing ring (black)	20020100013424	—
Charging port sealing ring (white)	20020100013030	—

OEM-document: Base Station Charging Contact Oxidation Issue

Symptomen

• Customers reported Abnormal water level in Cleaning plates, leaks, and overflows, requiring multiple repairs.

Oplossingsrichting

The water at the bottom of the cleaning plate could not be pumped out due to the structural defects of the cleaning plate.

Reparatiestappen

1. Upgrade the firmware to 1589 firmware (this version will keep pumping water when cleaning the mop)
2. Use a 2.5mm drill bit to drill holes in the cleaning plate to ensure that water can be pumped out from the bottom.
3. All L10s Ultra Gen2 models have this defect. When repairing this model, even if the customer has not reported any abnormalities, the machine must be upgraded to version 1589 and the drill holes in the cleaning plate before shipping.

OEM-document: L10s Ultra Gen2 Abnormal water level in Cleaning plate