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| [[File:NinebotESXError41.png|thumb|center|200px|Error 41 on a Ninebot ESX.]] | | [[File:NinebotESXError41.png|thumb|center|200px|Error 41 on a Ninebot ESX.]] |
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| "Exteral battery communication error, check external battery, control board, connected cabel. (42)" | | "External battery temperature abnormal, change external battery" |
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| | {{Ninebot ESX Error Code SEO|41}} |
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| ==Cause== | | ==Cause== |
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| Error 42 on a Ninebot ESX scooter is related to issues with the external battery's data lines communicating with the ESC.
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| Often it is the result of the two mounting screws coming loose or the bracket bending due to wear.
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| Occasionally issues with the battery itself that are unsolved even after appropriate tightening and cleaning is done may cause this issue, but the fix and cause of that are currently unknown.
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| ==Fix== | | ==Fix== |
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| Remove the external battery, taking care not to damage the screws as occasionally they are rather soft and can be easily damaged.
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| Check the terminals, make sure that they aren't dark and coated in carbon deposits.
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| [[File:Es4BadExternalBatteryTerminals.jpg|thumb|center|250px|If your terminals look like this where no metal is visible, you're in for a bad time.]]
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| [[File:Es4GoodExternalBatteryTerminals.jpg|thumb|center|250px|If your terminals look like this your scooter probably doesn't need to be cleaned.]]
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| If there is any sign of a carbon deposit on the terminals, give them a shot of contact cleaner. You should be able to see a good amount of metal on the terminals.
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| After that, make sure there exist at least 2 small washers on the three screws and 2 thicker washers on the two longer screws.
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| Use blue semipermanent Loctite/thread lock to ensure that the screws stay in the next time the scooter is reassembled.
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| If there is still an error 42 after all these steps, something is likely wrong with the battery.
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| This can be confirmed by plugging the battery into a different controller and if it also reads error 42, the battery is most likely broken.
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| [[Category: Scooters]][[Category: Ninebot]][[Category: ESX]][[Category: Error Code]] | | [[Category: Scooters]][[Category: Ninebot]][[Category: ESX]][[Category: Error Code]] |
