Ninebot Max Error Code 40

Error 40 on a Ninebot Max.

"Control Board Temperature Sensor is abnormal. Please check the Control Board."

Read below if your Ninebot Max G30 or G2 is beeping or has a red wrench icon and flashes this code.

If you clicked the wrong error code, return to the Max G30 and G2 Error Code Index.

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Cause

This can be caused by an issue with the temperature sensor on the ESC/Controller.

That can be due to overheating/under temperature or a wiring fault.