Infinity...... sounds like you have it on the wrong range, or got the probes plugged into the wrong jacks??
How to tell if it is the controller, battery or motor that gave up?
- Thread starter Chris Maluszynski
- Start date
If you don't know how to use the meter, why don't you ask? Show us a photo of it, and we can tell you.
Since you ask, I repeated the measurements today. Below are photos of the measurements of the three phase wires against the positive going into the controller.
As you can see the multimeter I set 2000k and returns a value of 1 on each of the phase wires. Same result I reported after my previous measurement.
please let me know if I am doing sometime g wrong.
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When probes touch one should see a short reading of 0, try a new battery in you meter or another meter.
The 1 then shows no connection between the battery wires and the mosfets. That would be could happen on either battery wire if the was shunt blown, like what happens when you connect the battery the wrong way round, or one of the power tracks blown off the PCB. I wouldn't expect to see 1 on both the positive and negative battery wires because it would mean two different tracks blown off, which can't happen. There's therefore got to be a measurement error somewhere somehow.
One more test to verify your meter. Set the meter to 2000k. Lick your thumbs and forefingers, then pinch the probe ends with them to see what resistance you get. It should be about 1000K and you should see the reading go up and down, depending on how hard you pinch and whether or not you're one of those weird people that sucks lightning out of the air.
One more test to verify your meter. Set the meter to 2000k. Lick your thumbs and forefingers, then pinch the probe ends with them to see what resistance you get. It should be about 1000K and you should see the reading go up and down, depending on how hard you pinch and whether or not you're one of those weird people that sucks lightning out of the air.
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I get a reading of around 200 when the meter is set to 2000k.
I hope I don’t attract lightning!
200 shows that you've got a high intellect, you're relatively fit and healthy, you like animals and your meter is working, but it doesn't tell us why there's an open circuit between those wires.
There is one explanation that I can think of, and that's that you're using the wrong wires. Are the battery wires definitely attached to the controller and not the battery?
Very precise readings on that meter then!And a very good theory. In fact I was measuring the phase wires that went to the motor and not the controller initially today, but realized my mistake and corrected it. And unfortunately, no, I am not measuring the wires going to the battery.
I very much appreciate everyone's engagement in this, but it does now border on the limits of how long one can torture people with a problem without feeling bad about it.
I loved this bike, but I really used the hell out of it for almost a decade. I want a bit more power out of the motor, the crank on it is busted and cannot be taken out, I miss disc brakes, etc. So maybe it really is time to move on.
Having said that, if anyone still wants to bite into this mysterious issue, feel free, and I will be happy to try out more possible solutions.