Roborock S5 Max keeps saying error 26

Roborock S5 Max keeps saying error 26

Hi, I purchased S5 Max a couple of months ago and it was working fine until yesterday. It keeps saying ‘error 26, clean the wall sensor’. I cleaned the sensors regularly and have been cleaning it over and over again with clean cloth, cotton buds, tissues, but nothing works. Please help

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  • Hello,

    Could you please send us a picture of wall sensor? You need to open the flash when taking photo of wall sensor so that it could show inside of sensor clearly.

    Also, please send us a video of this abnormal behavior, you can upload it online if it is large, like google drive.

    When and where did you buy this S5 Max? Please tell us the purchase info, like invoice or receipt.

    Note: You can email us these info via

    AlexM07/02/2020      04:51

    I’m having the same problem S5 max is only a month old.bought from australia

    RR_SupportStaff Member07/02/2020      10:56


    Have you ever wiped the wall sensor yet? If it is still the same, we suggest you to contact us via email and send us the info below: (

    1. The pic of the error message you received.
    2. The serial number of the S5 Max. Open the dust bin and you will see a label where you can get the serial number.
    3. A picture of the invoice or receipt.


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