Ebike down.

General Discussion about electric bicycles.
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lotrwiz   100 W

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Ebike down.

Post by lotrwiz » Oct 06 2013 5:13pm

I bought an 8fun front hub motor kit a while ago, today, a big problem, nothing happens!

My battery is FINE.

My throttle/ not sure
my controller/ not sure
my motor/ not sure

Last night, a red flashing light appeared inside the controller, so I'm inclined to believe that that's screwed.

Any help would be greatly appreciated. All the wires are connected of course, thanks a lot!

EDIT: Today the red light in the controller is blinking furiously, i think it's that.
Last edited by lotrwiz on Oct 07 2013 5:52am, edited 1 time in total.
Condom or no Condom?

Unless you know she's safe to ride, use protection. That applies to Women and Ebikes. :mrgreen:

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pdf   10 kW

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Re: Ebike down.

Post by pdf » Oct 06 2013 5:54pm

You mention you bought the kit a while ago. Have you used the kit before when it worked or is this the first time you have tried it?
-------------
Jamis Commuter 1.0/Xtracycle Stokemonkey 36V LiFePO4, 15 ahr
Giant Boulder 9C 8x8, 48v, 10 Ahr LiMn from ebikes.ca

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dogman dan   100 GW

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Re: Ebike down.

Post by dogman dan » Oct 06 2013 6:08pm

A starting point could be to look for voltage on the throttle wires plug. See if you have 5v there. Then see if working the throttle modulates that on the third wire.

d8veh   100 GW

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Re: Ebike down.

Post by d8veh » Oct 07 2013 4:30am

How do you know that your battery is fine? Which battery is it, the rack one or bottle one?

lotrwiz   100 W

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Re: Ebike down.

Post by lotrwiz » Oct 07 2013 5:14am

've been usin the kit with no problems, and I've got the water bottle battery. I know its fine as I've measured the current coming from it
Condom or no Condom?

Unless you know she's safe to ride, use protection. That applies to Women and Ebikes. :mrgreen:

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dogman dan   100 GW

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Re: Ebike down.

Post by dogman dan » Oct 07 2013 7:06am

Ask a vague question get a vague answer. We can't very well say what the flashing red light means till you tell us what controller you have. Then somebody with the same one might know what that means.

For me, with 3-6 ebikes in my garage at all times, the best money I ever spent was a motor/controller/ throttle tester.

lotrwiz   100 W

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Re: Ebike down.

Post by lotrwiz » Oct 07 2013 9:06am

dogman wrote:Ask a vague question get a vague answer. We can't very well say what the flashing red light means till you tell us what controller you have. Then somebody with the same one might know what that means.

For me, with 3-6 ebikes in my garage at all times, the best money I ever spent was a motor/controller/ throttle tester.

I know, didn't really know what else to ask. I don't know what controler it is, I've sent off the controller to the company for testing and a replacement so yeah.
Condom or no Condom?

Unless you know she's safe to ride, use protection. That applies to Women and Ebikes. :mrgreen:

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dogman dan   100 GW

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Re: Ebike down.

Post by dogman dan » Oct 07 2013 9:19am

That would eliminate sending us a picture of it then. One showing the insides. We have other geniuses here that can look at one and tell you all about it. Me, if it tests bad, I buy another. Usually the problem is I plugged one in backwards, again. :roll:

Sometimes the cheaply manufactured components in controllers and chargers just fail. Hopefully you will get a replacement free.

John in CR   100 GW

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Re: Ebike down.

Post by John in CR » Oct 07 2013 11:28am

If the controller is blinking, the number of flashes or pattern will tell you what's wrong if you know the code. My guess would be that it's something other than the controller, since if it was blown, then no LEDs at all seems more likely.

Invest in an ebike tester like Dogman said. Identifying the problem is over half the job and testers make that a piece of cake.

d8veh   100 GW

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Re: Ebike down.

Post by d8veh » Oct 08 2013 1:04pm

We can't help you because you can't do the necessary tests. It's normal for controllers to flash, Flashing evenly on and off means OK. Any other pattern is a fault code.

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alsmith   100 kW

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Re: Ebike down.

Post by alsmith » Oct 08 2013 7:14pm

You can't really discount the battery being faulty just because it has been working properly until this problem. So did the other things.
First check should be your battery voltage, it's probably the easiest thing to do a quick check on. If it turns out it's low then check the charger. Missing something out in the checks because of an assumption can cause hours of wasted effort, including sending parts back to suppliers.

lotrwiz   100 W

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Re: Ebike down.

Post by lotrwiz » Oct 09 2013 5:14am

alsmith wrote:You can't really discount the battery being faulty just because it has been working properly until this problem. So did the other things.
First check should be your battery voltage, it's probably the easiest thing to do a quick check on. If it turns out it's low then check the charger. Missing something out in the checks because of an assumption can cause hours of wasted effort, including sending parts back to suppliers.

Sorry, I didn't mean to give off the impression that I presumed. I checked the battery already.
Condom or no Condom?

Unless you know she's safe to ride, use protection. That applies to Women and Ebikes. :mrgreen:

d8veh   100 GW

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Re: Ebike down.

Post by d8veh » Oct 09 2013 5:25am

lotrwiz wrote:
alsmith wrote:You can't really discount the battery being faulty just because it has been working properly until this problem. So did the other things.
First check should be your battery voltage, it's probably the easiest thing to do a quick check on. If it turns out it's low then check the charger. Missing something out in the checks because of an assumption can cause hours of wasted effort, including sending parts back to suppliers.

Sorry, I didn't mean to give off the impression that I presumed. I checked the battery already.
How, and what were the results?

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dogman dan   100 GW

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Re: Ebike down.

Post by dogman dan » Oct 09 2013 6:28am

Best scenario, when the controller gets returned after checking out ok, when he plugs it all back in the bad contact at one of the plugs that was the problem does not repeat itself.

Its very very very very very often just a loose plug making a poor contact. Generally the contacts push back out of the housing. So look at the plugs that go to the throttle, and the motor. See if those contacts are not sliding around in the housing.

Steady flash is often the code for all is ok with a controller.

lotrwiz   100 W

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Re: Ebike down.

Post by lotrwiz » Oct 09 2013 7:36am

dogman wrote:Best scenario, when the controller gets returned after checking out ok, when he plugs it all back in the bad contact at one of the plugs that was the problem does not repeat itself.

Its very very very very very often just a loose plug making a poor contact. Generally the contacts push back out of the housing. So look at the plugs that go to the throttle, and the motor. See if those contacts are not sliding around in the housing.

Steady flash is often the code for all is ok with a controller.

I did that, many times. I've had a lot of experience with old brushed scooters and mobility scooters, so I'm not a noob here.

It was at first a steady flash, then it escalated to a manic flash, like a strobe.
Condom or no Condom?

Unless you know she's safe to ride, use protection. That applies to Women and Ebikes. :mrgreen:

lotrwiz   100 W

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Re: Ebike down.

Post by lotrwiz » Oct 09 2013 7:36am

d8veh wrote:
lotrwiz wrote:
alsmith wrote:You can't really discount the battery being faulty just because it has been working properly until this problem. So did the other things.
First check should be your battery voltage, it's probably the easiest thing to do a quick check on. If it turns out it's low then check the charger. Missing something out in the checks because of an assumption can cause hours of wasted effort, including sending parts back to suppliers.

Sorry, I didn't mean to give off the impression that I presumed. I checked the battery already.
How, and what were the results?

With a voltmeter, and it came out at about 35.4v which is about right for my 36v battery.
Condom or no Condom?

Unless you know she's safe to ride, use protection. That applies to Women and Ebikes. :mrgreen:

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alsmith   100 kW

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Re: Ebike down.

Post by alsmith » Oct 09 2013 7:49am

lotrwiz wrote: With a voltmeter, and it came out at about 35.4v which is about right for my 36v battery.
So it's not charged. What chemistry is the battery? We can tell you what a fully charged battery can be expected- should be expected to be.

d8veh   100 GW

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Re: Ebike down.

Post by d8veh » Oct 10 2013 4:20am

lotrwiz wrote:
With a voltmeter, and it came out at about 35.4v which is about right for my 36v battery.
That's totally not OK. It should be about 41.5v.

The errors that the controller gives are patterns of flashes in a sequence, like two or three flashes then a delay before repeating. The number of flashes is the error code. Are you sure that the frequency of flashing increased?

lotrwiz   100 W

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Re: Ebike down.

Post by lotrwiz » Oct 16 2013 10:38am

Right guys, thanks for all your help, I sent the controller off, they tested it the next day, and sent a new one back the same day as it was faulty as I thought, and then I received it the next day. Really impressed with their service.
Condom or no Condom?

Unless you know she's safe to ride, use protection. That applies to Women and Ebikes. :mrgreen:

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alsmith   100 kW

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Re: Ebike down.

Post by alsmith » Oct 16 2013 7:23pm

That's good. Don't forget tp let us know if that sorts your problems when fitted.

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