1, check the battery, battery loss, if the battery is lost, the drum, naturally can not be charged, in this case, can only choose to replace the battery 2, the charger wire connector loose, the wire connected to the battery west tin block of the nut loose, resulting in poor connection, it is recommended to take down the connector, wash with hot water, remove the stain on the nut, and then connect 3, charger failure, This problem is very common, the charger in the process of charging, will emit a lot of heat, if in an unventilated environment, the electrical components inside the charger are heated for too long, will melt, causing the charger failure. It is recommended to ensure that the charger is properly ventilated when charging
Reasons and Solutions:
First of all, you need to check whether the adapter is damaged, this step to use the maintenance tool, if there is no maintenance tool will not operate, then you have to ask a professional to solve.
An adapter with an indicator light must require the light to be on, and if you are not sure whether the adapter is damaged, you can try to charge the sweeper with a charging seat.
If the charging seat can be charged, it indicates that the adapter is broken, and an adapter of the same model can be replaced.