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  1. harrys

    KT-LCD1 to KT-LCD3

    I have KT LCD3 and it sets the max speed from the first user setting screen that is always available. It does work. I have on bike limited to 16 mph and it shuts off there. I'm thinking that if you change to an LCD-3, you should see the same result. I've used the LCD3 on four or five KT...
  2. harrys

    KT-LCD3 Info 3 Error

    A lot of the time, it's a connector that came apart. Q128's come with a short cable with a molded 9 male pin plug. Make sure it's securely inserted into the matching round cable that goes to the controller. Sometimes they're so tight that you think there's contact, but it's tenuous. Then that...
  3. harrys

    Build Q128c motor

    It's not a dark art, but some writers have embellished it. It's just a procedure. Takes an evening to learn, and then you will have true wheels for the rest of your life, as long as your eyes and fingers hold out., Manager was right to do it on the bike. A lot can go wrong when someone undoes a...
  4. harrys

    Sine Wave Controller help.

    The LCD3 would throw up an error code 03 and the motor wouldn't spin if it had no hall sensors. I was just wondering if your speed happened to be 6X faster, as it's related to the 6 you're using for the pules/rev on the speed sensor. Since it is not, then P2 is correct. By the way, I recently...
  5. harrys

    Sine Wave Controller help.

    If those worked with the square wave controller, I would think they must be OK. You're getting the correct speed displayed?
  6. harrys

    Sine Wave Controller help.

    I have bought three of these PSWPower sine wave controllers, and one was no good, while the other two worked fine. The bad one just ran rough at all speeds under load. Worked great when just spinning the motor.
  7. harrys

    Help installing thorttle increase speed

    You can get a throttle and new controller, but unless your present controller has a speed restrictor, there's no speed increase. For that you have to go to 48V, and the direct path to that is a 48V battery that fits your cradle. I would estimate that ebike around 30 km/hour on 36V? Then 40...
  8. harrys

    Complete conversion kit vs. replacing parts

    Emily, we all took you literally when you said controller, battery and motor had to be replaced. You bought it used? Get the new controller if possible and upgrade the battery when you can. A rattle could just mean some foam shrunk. You'd ruin the Gazelle putting a kit on it. It will pedal...
  9. harrys

    Complete conversion kit vs. replacing parts

    Nice bike per this video: It will be hard to replicate the same biking experience with a kit, as your Gazelle has a torque sensor pedal, plus the integrated light. There are four components to an ebike. -motor -controller/display -battery/charger -connecting wires And I would be surprised...
  10. harrys

    S-KU95 controller help

    If that is the latest picture, you can't expect the controller to work if you haven't repaired the Hall sensor wires. I don't think you have proved anything yet. I see you have a very common multimeter. I always used to chuckle because it has a built-in beta tester for transistors. I may be one...
  11. harrys

    Good deal on 36/48v controller and LCD

    I bought something similar, with the same Brainpower name. Mine was set up for 48V only and would not run on 36V, but I found a pad on the circuit board that if jumpered to ground, allowed dual voltage operation. Maybe that is how this guy sells them. I bought mine from a shop named PhoebeLiu on...
  12. harrys

    S-KU95 controller help

    Yes, I pulled out my unused elifebike controller. It uses the 810led. Jumpered the correct two wires and saw that the throttle was able to spin the motor without the 810 connected, so that that suggests you have indeed proved your controller is likely dead,
  13. harrys

    S-KU95 controller help

    You need a easy volt meter lesson. Can you post a pic of the front panel or link to a image of it?
  14. harrys

    Custom length 9 core motor cable

    John, If the motor cable is a factory cable with the male pins, then I like running a longer cable with the female socket from the controller to the motor, making my solder joins inside the controller box. This has the advantage of simple twist joints inside the box, which are protected against...
  15. harrys

    S-KU95 controller help

    Matthew, do you have a voltmeter? Before writing off the controller, check the red and black wires that you cut to see if there's 5V power for the Hall Sensors. That means you have to be able to start the controller, and that requires connecting up the 810LED display. You will have to press...
  16. harrys

    S-KU95 controller help

    That's not 5 volts. It's battery power, either 36V or 48V nominal.. Connecting those two wires starts the controller. On my PSW contollers, those are also 1 & 2, and the vendor ships them with a jumper plug, 1-2 and 4-5.
  17. harrys

    PSWpower 20A Sine Wave Controller

    Thanks for suggesting for a systematic approach, Neath. I think the motor has relatively high gearing. I will work down from 255,
  18. harrys

    Any idea on how to fix this

    If it used to work, it's not a wire sequencing problem. I must be lucky. I've bought five different brands of controllers and never seen a mismatch in the motor phase wire colors or the hall sensor colors. Never owned a cheap DD motor though. I've heard that clunks happen when a magnet falls...
  19. harrys

    PSWpower 20A Sine Wave Controller

    I am running a newly purchased unit with a geared no name (well they're all no name) motor where I know nothing about its gearing or the number of magnets.Hence P1 setting is guesswork. What I've noticed is that the speed is accurate when coasting. Under acceleration, the display jumps between...
  20. harrys

    Can I limit the power used by the q128c with the S-LCD3?

    You're closer than me! Mine says 25A on the label. The thing is almost a foot long, just to hold all them MOSFET's. Well, that's rounding error. Maybe it's 7 inches, almost twice as long as the little PSWpower controller anyway. A third of the case is really empty too. I gotta use it one of...