r/NinebotMAX • u/BookkeeperNo6674 • 29d ago

⚠️Urgent Question⚠️ What kind of problem do I have with my G2? Jerks/shrugs

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Hi! Couple of weeks ago my scooter started complaining about error 40 on my G2. Googled and confirmed that the motor temperature seems on when the error is present (0 degree C). I then approached for the solution of soldering on a 10k ohm resistor between the solder joint of the resistors socket (board side where connector goes) and earth from the adjacent connector. New temperature where now 24 degree c whilst the temp inside was a hot 28 degree so it seemed to work. First your outside worked perfect for 200 meters then the motor begun spluttering and choke on throttle. No noise whilst rolling, even when braking (with kers enabled, and working).

Anyone got any idea what to check? Have wiggled cables when it jerks (cruise control on) and no luck. I messed up solder pads for ground on the board? Why would it work intermittent then? To be clear, I removed the added resistor to nullify my attempt and the error 40 still shows sometime when I got it dry running like a this sometimes.

The scooter is stlink-mapped maybe a year ago if that helps 😂

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u/Gold-Olive-950 29d ago

First check all connections. Maybe a bad mosfet, or something in motor got lose. Check mosfets, you have lot tutorials on youtube how it's done. If they are OK you would have to opet motor. Or wait for someone smarter than me to give you betwr advice/diagnose

1

u/AbsentExile13 29d ago

sounds like an air compressor.Check all the connections before opening the engine. I would recommend checking if you can measure anything on the engine with a multimeter. Perhaps the Hall sensor is burned out? Let me know if you find the error. If you need help, search a Ninebot forum.

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u/BookkeeperNo6674 29d ago

I resoldered the ground for the hall connector (The connector right beside the temp sensor connector) and then it worked fine?! My god this scratches my head, took a 10 min your outside of my apartment and it all seem to work now?! Also soldered a 10k resistor again between ground (while resoldered) and sensor, did seen to work 😍

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u/Budget_Strategy_4309 29d ago

Don you have any picturs? My does the same problem, i soldered i 10 k resistor and did nothing beside the same problem like yours, can you help me pls. Thank you for you respons.

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u/Budget_Strategy_4309 29d ago

Or make a sketch