Posted on March 13, 2021Author  

Why do your robot vacuum cleaner  run out  of power after working for a while? 

Why is my Robot Vacuum  Cleaner not turning on or charging?

I know you need it badly, so I wrote it out overnight...

Fault description

Press the start button to start, the fan and brush of the machine will rotate for one second and then stop, and the wheels will keep rotating. The fan and brush will restart three times, and the machine will pause after three restarts, and the buzzer will sound an alarm.

Repair method

● Check if the fan is deformed, if there is any abnormal noise from the wind blade, if so, please replace the fan module.

● Unplug the fan cable, and then press the start button. If there is no alarm, you need to replace the fan module.

● Unplug the fan cable, and then press the start button. If the machine still has an alarm and no abnormality is detected, the motherboard needs to be replaced.

Fault description-1

Press the start button to start, the fan and brush of the machine will turn for a few seconds and then stop, the wheels will keep rotating, and the fan and brush will restart three times. After three restarts, the machine will pause and the buzzer will sound an alarm.

Repair method-1

● Clean up the entangled debris on the main brush and side brush.

● Unplug the cable of the brushing box, and then press the start button. If there is no alarm, you need to replace the main tooth box.

● Unplug the cable of the brushing box, and then press the start button, if the machine is still alarming, you need to replace the motherboard.

Fault description-2

Press the start button to start, the machine turns backwards, then pauses, the alarm light flashes, and the buzzer sounds an alarm.

Repair method-2

● Clean the ground inspection sensor. The sensitivity of the ground inspection sensor is too dirty. Change the ground with a lighter color to see the effect.

● Check whether the cable of the sensor is loose or falling off.

● The ground sensor is damaged and needs to be replaced.

Fault description

Press the start button to start, the machine will pause after running for a few seconds, and the fan, brushes and wheels will not rotate. You have to restart three times. After three restarts, the machine will pause, and the buzzer will sound.

Repair method

● If it is a rough carpet floor, the resistance of the machine forward is too great, put the machine on the floor environment and try it.

● Unplug the left and right wheels and start the machine to check if there is any such bad phenomenon. If there is, it means that there is a problem with the motherboard and the motherboard needs to be replaced.

Fault description

It can't be turned on by pressing the power button.

Repair method

● The machine has been left for too long and the battery is dead, so you need to use a charging stand or adapter to charge it.

● Please check whether the battery cable and the connection cable of the face shell are loose or fall off.

● If the machine is switched on and off frequently, please check whether the key switch is damaged.

● When none of the above reasons are found, the motherboard needs to be replaced.

Fault description

After turning on the machine, press the power button and it cannot be turned off.

Repair method

● If the machine is switched on and off frequently, please check whether the key switch is damaged.

● Please check whether the connection cable of the face shell is loose or falling off

● If an abnormality is not detected, the main board needs to be replaced.

Fault description

The main brush rotates, but the side brush does not rotate;

the main brush and the side brush do not rotate

Repair method

● Check whether the main brush is rotating, if the main brush is rotating, then check whether there is any foreign matter entangled in the side brush

● If neither the main brush nor the side brush can be rotated, loosen the screws of the main tooth box a bit and see if it starts to rotate. If it still cannot be rotated, only replace the main tooth box.

Fault description

 The fan/brush keeps running after shutting down

Repair method

● Replace the motherboard

Fault description

After the machine is started, the left / right wheels do not rotate, and the main brush / fan works normally.

Repair method

● First check whether there is any foreign matter stuck on the left and right wheels and whether the socket is loose.

● If there is only one wheel that does not turn, switch the left and right wheel sockets to start the machine and check whether the machine still does not turn on the previous wheel. If it is, it means that the wheel that does not turn is broken and the wheel needs to be replaced. If not, the motherboard needs to be replaced.

● The machine starts to move diagonally to one side, stops after walking or hits a wall and then pauses, indicating that the motherboard is broken and the motherboard needs to be replaced

Fault description

The buttons on the remote control can sometimes be remotely controlled and sometimes cannot be remotely controlled.

Repair method

● Check if the voltage of the remote control battery is too low.

● The machine cannot be placed in front of the charging dock and virtual wall that has been turned on (the remote control is not possible within 3M from the charging dock and the virtual wall). Please unplug the charging dock and turn off the virtual wall before performing remote control.

● Open the charging base and let the machine switch to find the charging base mode and run, and see if the machine can automatically turn when looking for the charging base. If it can turn, it means the problem is with the remote control. If it can't turn, it means the receiver of the machine has a problem. Replace it. 

Fault description

The buttons on the remote control do not work after turning on; the machine does not circle when looking for the charging station

Repair method

● When the remote control does not work, if you find the charging cradle normally, it means that there is a problem with the remote control itself. Check whether the battery is charged and the battery voltage is normal. A dead battery needs to be replaced with a battery of the same specification. If the machine does not turn in a circle when looking for the charging station, it means that the receiving head of the button board/display board of the machine is bad, and the button board or receiving head needs to be replaced.

● The machine is controlled by remote control only after it is turned on manually, and cannot be controlled by remote control when it is turned off manually

Fault description

When the machine is left for more than one month, it cannot be turned on and the main unit is charged. After a while, the green light will go out, indicating that it is fully charged. After working for a while, there will be no electricity.

Maintenance method

● Use the adapter to directly charge the host. After the green light is off, it still needs to be charged for one hour. At this time, the small battery is used to activate the battery. After one hour, the machine stops charging for one minute, and the host is charged again. It can be charged normally. If it still does not work, please replenish it for another hour and activate the battery again. Repeat this three times to fully activate the battery.

Fault description

The machine is jammed by special objects on the ground

Repair method

● The machine is entangled by wires, wires, etc. scattered on the ground.

● The machine is entangled by drooping curtains or the fringe of the carpet.

● There are too many obstacles in front of the machine, and the machine will alarm and pause if it cannot get out within a certain period of time.

Fault description

The buttons on the keypad sometimes work, and sometimes they don’t.

Repair method

● Replace the key board or replace the keys of the same specification

Fault description

After the machine is started, it moves backwards, then turns left, and then moves backwards and turns left again, looping all the time.

Repair method

● Check that there is a wireless material stuck into the sensor, if any, disconnect the cable and re install it.

● Check whether the air duct is broken or falling off.

● Change to a right wheel and run the machine to check if there is a continuous back-and-left turn. If you continue to back and turn left, replace the motherboard.

Fault description

After the machine is started, it moves backwards, then turns right, and then moves backwards and turns right again, looping all the time.

Repair method

● Check that there is a wireless material stuck into the sensor, if any, disconnect the cable and re install it.

● Check whether the air duct is broken or falling off.

● Change to a right wheel and run the machine to check if there is a continuous back-and-right turn. If you continue to back and turn right, replace the motherboard.

Fault description-1

The machine will pause for about 1 second after starting up and alarm with a red light

Repair method-1

● Check all the ground sensors for loose sockets.

● Inspect the sensor wire with your hand gently to see if there is any fall off. If there is none, you need to replace the motherboard.

Fault description-2

The machine pauses and alarms with a red light after going back and forth for a few seconds after starting up

Repair method-2

● Check whether there is something covering the lens of the ground inspection sensor.

● Replace a ground running machine with a white color, and observe whether there is a red light alarm when the left and right retreat.

● Check whether the sockets of all the ground sensors are loose or fall off, and gently move the ground sensor wires with your hands to check whether there is any fall off. If there are none, you need to replace the motherboard.

Fault description

alarm immediately after start-up

Repair method

● When starting, the red light will alarm if the wheel brush has not been rotated. First charge the adapter for a few seconds to observe whether the machine can be charged normally, then unplug the DC charging cable and start the machine. If the machine still activates the alarm You need to replace a DC charging stand.

Fault description

The dust is not clean when the machine sweeps the floor

Maintenance method

● Check whether the dust box, dust inlet, dust box cover is too dirty or blocked, and whether the side sweep is normal. Whether the battery is dead. Replace sponge

Fault description

The machine suddenly stops/shut down when it is running

Repair method

● Check whether the power of the machine is exhausted, and it will automatically shut down when the power is exhausted. At this time, manual charging is required.

● Check whether the machine is working in fixed-point mode. In fixed-point mode, the machine will pause for about 2 minutes.

Fault description

The sound of the running machine suddenly becomes louder

Repair method

● If the running machine suddenly becomes louder, observe whether the machine enters the clockwise fixed-point cleaning mode. If it enters the fixed-point mode, it is a normal phenomenon and will automatically recover after a period of time.

● If the machine has a sharp sound in the automatic cleaning mode, please check whether the dust box is installed, and check whether the brush and dust box are too dirty.

● If there is a serious abnormal noise, turn the machine into automatic charging mode and run the machine to observe whether there is any abnormal noise. If there is any abnormal noise, it means that it is the abnormal noise of the main brush box. Check whether there is any foreign matter on the brush wheel. If there is no abnormal noise, it means that the fan is abnormal. Check whether the fan is stuck with foreign objects, otherwise the fan needs to be replaced.

Fault description

The running machine occasionally falls off the steps or pauses at the edge of the steps and alarms with a red light

Repair method

● First of all, make sure that the height of the step must be greater than 8CM.

● Please check whether the sensor at the bottom of the machine is too dirty or obstructed. The smooth or highly reflective parts of the machine may cause deterioration of the anti-drop function.

● Check whether the machine is working under strong sunlight. Please do not stack fragile objects under the table or steps cleaned by the machine to prevent the machine from falling under the influence of the environment.