vacuum robot cleaner Xiaomi 21 error code

We have described the error code 21 vacuum robot cleaner Xiaomi, the causes of the malfunction, the recommendations of diagnostics and repair. For convenience, arranged in a convenient and understandable table below.

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Error 21 vacuum robot cleaner Xiaomi, transcript

Error code Description Causes and solution
21 It is possible for dust to settle on the contact zones of the station, or for foreign objects to get on them. It is necessary to wipe the signal transmission area of ​​the charging station from all foreign debris and dust.