gon2fast Posted June 18, 2023 Share Posted June 18, 2023 I have had 2 E-HALL failures. One at 2k and the second, on a new motor, after 1k. Unlike everyone else the error presented itself when I was powering it up not on the wheel. Also there was no recovery after the initial error either time. On my third and far more expensive motor now. 1 Quote Link to comment Share on other sites More sharing options...
RagingGrandpa Posted June 20, 2023 Share Posted June 20, 2023 On 6/18/2023 at 1:06 AM, gon2fast said: On my third and far more expensive motor now. Just for confirmation- which model EUC was that? Quote Link to comment Share on other sites More sharing options...
Bridgeboy Posted September 3, 2023 Share Posted September 3, 2023 (edited) eWheels thought my problem was 75% something wrong with the control board and 25% chance something wrong with the motor. They sent me a new control board (I bought it) and I got it installed. I just rode 44.1 miles yesterday and everything went great. So far so good. @gon2fast You may want to consider that your problem may be the control board and not the motor. I rode another 42 miles on 09/03 with no problems as well. Edited September 4, 2023 by Bridgeboy 1 Quote Link to comment Share on other sites More sharing options...
RagingGrandpa Posted October 30, 2023 Share Posted October 30, 2023 On 6/18/2023 at 1:06 AM, gon2fast said: E-HALL failures on a new motor For posterity: beware some EUC models use a rim with magnets offset to one side... so if the rim is assembled in the wrong orientation to the motor stator, there will be an excessive gap between the magnets and the sensor, and E-HALL will result. Flip the rim over! SherMax example below: 1 1 Quote Link to comment Share on other sites More sharing options...
vanhoolvisko Posted March 22 Share Posted March 22 Just swapped axle and first time turned wheel on and I have e-hall error. Half turn I see speed working and sensors are working but I also have 111 combination amongs other during this half of turn Other half of turn I don't have speed and hall sensors not working... I hope you understand what I mean Help guys Quote Link to comment Share on other sites More sharing options...
vanhoolvisko Posted March 22 Share Posted March 22 On 10/30/2023 at 2:53 PM, RagingGrandpa said: For posterity: beware some EUC models use a rim with magnets offset to one side... so if the rim is assembled in the wrong orientation to the motor stator, there will be an excessive gap between the magnets and the sensor, and E-HALL will result. Flip the rim over! SherMax example below: What is right side? Bigger gap on motor wires side? Quote Link to comment Share on other sites More sharing options...
RagingGrandpa Posted September 30 Share Posted September 30 On 3/22/2024 at 2:04 PM, vanhoolvisko said: Bigger gap on motor wires side? Correct. It means the sensor chips are on the Left side, very close to the magnets. Quote Link to comment Share on other sites More sharing options...
Crowheel Posted October 7 Share Posted October 7 On 5/22/2023 at 2:44 PM, RagingGrandpa said: Almost identical to my situation. Sounds like "2 year old Sherman" sensor failures are becoming common. It will happen again. And it will be almost impossible to reproduce. I was never able to create the error from pendulums, jumps, riding on rough surfaces, freespins, violent shoving back & forth by hand, etc. Mine slowly went from one shutoff per 10 rides, to one shutoff per hour, over the course of 6 months. Luckily, Sherman (at least with firmware 1.0.58) will tolerate sensor glitches when you're moving faster than 8mph, so this should not cause a high-speed crash. But accelerating from a stop can be very risky, with a failing sensor. Replace your motor. Mine had no scraping, and my sensors were quite solidly glued in their slots in the stator. There was no vibration or movement. Semiconductors do wear out... especially in a motor environment with big thermal cycles. And these are cheap not-top-brand semiconductors. I have the same problem. Ehall senzor error appear now and then but in recent time happens to me frequently so i had few falls but nothing setious since it almost aleays happens on start or low speeds. Since I was replacing broken axle with now one wires were made poorly so i hope its not the sensor but wires. The guy who was repairing my wheel didnt put new wires but he just reaolder old ones back and it looks very suspicious. I will replace wires first. I thi k its not hall sensor since sometimes works. Quote Link to comment Share on other sites More sharing options...
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