Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Electric Bikes Here's a place to discuss ebikes, from home grown to high-tech.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 02-06-10, 03:12 PM   #1
tchilton
Newbie
Thread Starter
 
Join Date: Feb 2010
Bikes:
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
36 Volt SX Iacocca EBike HELP

My brother had a 36 Volt SX Iacocca Ebike that was just sitting for several years - he gave it to me and I've been riding it for a year (replaced the battery with the battery replacement from NYCE wheels and bought new tires). It's been great - but now when I apply the throttle, there is a whine from the back hub and no power to the wheel.

Can anybody help me out with advice on what's wrong & how to fix it (if possible)? I was riding to work everyday and riding for pleasure also - this is a big loss for me. I can't afford a new ebike and really want to get this one fixed. I had lost about 40 lbs. (I can't ride up the hills on a regular bike, not in good enough shape). I don't want to just start taking the bike apart, as I don't know what I''m doing.

If it's not fixable, is there a place that buys old Ebikes for parts? It's in great shape, aside from the problem with the hub.

Thanks.
tchilton is offline   Reply With Quote
Old 02-06-10, 04:32 PM   #2
morph999 
Senior Member
 
Join Date: Jan 2009
Bikes:
Posts: 499
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I'm not familiar with your bike. If you could tell us the year that it was made, that would help. If it's a brushless motor, you might have problems with the hall sensors. If it's a brushed motor, then it's probably the controller.

You might just need to make sure all your connections are probably connected. If the hall sensors come apart, it can create the very problem that you have. The hall sensors are tiny wires coming from the controller to the motor.
morph999 is offline   Reply With Quote
Old 02-06-10, 04:37 PM   #3
morph999 
Senior Member
 
Join Date: Jan 2009
Bikes:
Posts: 499
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Also, take a voltmeter or a multi-meter and make sure your batteries are fully charged, they should read about 14v or more fresh off the charger, for each 12v battery. Also, try pulling the motor/wheel of the ground and give it throttle to see if it will move with no load on it.

EDIT: Ok, you have a Brushed motor so it won't be the hall sensors. This sounds like a dumb statement but it's probably your controller or batteries. If you are tech savy, you could take the battery leads from the motor and hook them directly up to the battery to see if the motor will move. If it moves, then you know the motor is fine and it's the controller that is bad.

If you want better help, you might try this forum:
http://endless-sphere.com/forums/viewforum.php?f=2

Last edited by morph999; 02-06-10 at 04:42 PM.
morph999 is offline   Reply With Quote
Old 02-06-10, 06:33 PM   #4
nwmtnbkr
Senior Member
 
nwmtnbkr's Avatar
 
Join Date: Jul 2009
Bikes:
Posts: 1,054
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by morph999 View Post
Also, take a voltmeter or a multi-meter and make sure your batteries are fully charged, they should read about 14v or more fresh off the charger, for each 12v battery. Also, try pulling the motor/wheel of the ground and give it throttle to see if it will move with no load on it.

EDIT: Ok, you have a Brushed motor so it won't be the hall sensors. This sounds like a dumb statement but it's probably your controller or batteries. If you are tech savy, you could take the battery leads from the motor and hook them directly up to the battery to see if the motor will move. If it moves, then you know the motor is fine and it's the controller that is bad.

If you want better help, you might try this forum:
http://endless-sphere.com/forums/viewforum.php?f=2
I would agree with morph that you might want to pose your question at the Endless Sphere forums. There could be a wide variety of reasons you're having this issue. It may be something minor, maybe not. I also would agree that you need to do a little diagnostic detective work with a volt meter. Good luck.
nwmtnbkr is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 10:51 AM.