Any ideas? Thanks in advance

Hello, hope everyone is well. I was wondering if anyone knows what a blinking red light at number 2 might indicate. The bike powers up, shows full power on the power indicator, then on the speed settings 0 -3 the number 2 blinks and there is no pedal assist. Battery charges just fine. Had the bike from new, stored in the shed, battery stored in the house, only used a handful of times. I'm aware although the shed is dry, temps can cause condensation. I bring the bike in the house for about a week before use, close by a radiator. It's only a cheap starter ebike, but would like to try and repair it. Its a cross highwayman. Cant find the manual, and online isnt proving fruitful, so I have no idea what the blinking light is telling me. Any ideas, thanks in advance.

Post a couple of photos including one of the display; that will help people know exactly what parts it has and so what the error display might mean.

Post a couple of photos including one of the display; that will help people know exactly what parts it has and so what the error display might mean.

Will do. Thanks for the reply.

 

This is the unit, but the power lights are full red and the number 2 is blinking red. This not the actual unit but it's the same (I'm at work) when I press the plus and minus buttons nothing happens. I've checked the sensor led and that strobes a normal when the pedals turn. Hope this helps.

The blinking light means that there's an error in your system, but without the manual it impossible to say what it is. The normal ones are:

Brake switch stuck. Disconnect the brakes to see if it goes away.

• Throttle non-zero at startup. Disconnect it to see if itgoes away.
  
• Hall sensor error caused by motor cable connection error or damage to the motor cable. Note that the main connector near the motor needs to be all the way in to the line, not just in tight.
  
• Communication error - can have any cause, where something on the 5v line is giving a problem
  
• Motor phase wire not connected - same as second one above.
  
• Battery voltage too low. Check the battery with a meter to be sure.
  

Brake switch stuck. Disconnect the brakes to see if it goes away.

Clarification, just in case OP isn't quite sure.

That is: disconnect the electric wire from the brake to the controller.

No need to change any mechanical/hydraulic aspects of the brake.

Taken the wire wrap off and there

Are no connectors to undo, just straight wires, there is the second wire going to the break levers, but I don't want to yank on them just in case I break something. Can anyone confirm they would disconnect from the lever at the top?

 

Also I'd thought I should add that the bike display starts up normally with no error, then as soon as the bike is moved it errors. Hopefully that detail may narrow the error down.

They won’t disconnect from the top.

 

There may be a cable connector lower down the cable going into the controller.

 

If you are unlucky, the brake switches will be hard wired into the controller, making it even more difficult to fault find.

I think they are, I've followed those cables until the disapears into the frame and back out. There is a connector for the motor on the front wheel, and when I disconnect that, the bike starts as normal then errors when moved.

I could add inline connectors to each of the items I need to diagnose, at the same time futureproofing. Is there a standard amount of pins for each item?

They can either be 2 or 3 wires. There is probably already a connector somewhere, it’s just that you haven’t found it yet.

They can either be 2 or 3 wires. There is probably already a connector somewhere, it’s just that you haven’t found it yet.

 

I'll keep looking, but unless it's in the frame I don't think so. Are they normally soldered in the control box? Maybe I can disconnect from there or is that a sealed unit?

Maybe I could disconnect from here? Or would that produce the same error?

 

Yes you can do that. There is a mechanical switch under the cover.

Edited April 15, 20242 yr by AGS

Removing the left and right break sensor, one at a time, produced a number 0 error along with the number 2 error.

 

 

Also I managed to find the bikes user manual and nowhere does it tell me what the led indicators mean if there is an issue.

Also I managed to find the bikes user manual and nowhere does it tell me what the led indicators mean if there is an issue.

If the brakes don't have a connector on the handlebars, it's at the controller end of the wire. Do not touch the switches on the levers.

If the brakes don't have a connector on the handlebars, it's at the controller end of the wire. Do not touch the switches on the levers.

I'll have a look tomorrow, there is some wrap at that end, but I had a good feel and could not detect any connectors. I'll remove the wrap just in case the connectors are there.

I'll have a look tomorrow, there is some wrap at that end, but I had a good feel and could not detect any connectors. I'll remove the wrap just in case the connectors are there.

You can't miss the connectors. They won't be hidden inside shrink-wrap.

 

If your switches are like in the photo in post #16, the lever needs to hold them down at rest. If they're up when you switch on the controller, you'll get an error code, which seems to be 0-2 from your description, so your fault probably isn't the brakes; however, you need to disconnect everything from the controller to find out what's causing the error, so pull it out, disconnect the brakes, pedal sensor, motor halls, and throttle, then plug them in one at a time to test which one gives the error, if any.

You can't miss the connectors. They won't be hidden inside shrink-wrap.

 

If your switches are like in the photo in post #16, the lever needs to hold them down at rest. If they're up when you switch on the controller, you'll get an error code, which seems to be 0-2 from your description, so your fault probably isn't the brakes; however, you need to disconnect everything from the controller to find out what's causing the error, so pull it out, disconnect the brakes, pedal sensor, motor halls, and throttle, then plug them in one at a time to test which one gives the error, if any.

Agreed, sounds like a plan. I will have to disassemble the pannier rack first to get to the battery/controller housing as it will not just slide out as it is all hard wired. Hopefully I can get access to the controller and unplug things from there. I'm also going to try and call the support number on the user manual, but I'm not holding out much hope for that number to still be active.

Brake sensor connectors are not found at the brake end , they are on the cable tail of the brakes . if moulded julet type connector they will terminate at the 1t4 multi connector or if sm connectors at the controller end.

Ok just got off the phone with the support people who tell me the error 2 is a motor issue. They could only give me basic troubleshooting, to disconnect the hub cable and reconnect, and check for bent pins and cable damage, which it has neither. After that as it is out of warranty they told me the only they can advise is to take it to a repair shop and have the hub replaced.

I can't see how the motor would break after so little use. Is there anything I could do to troubleshoot the motor itself?

Ok just got off the phone with the support people who tell me the error 2 is a motor issue. They could only give me basic troubleshooting, to disconnect the hub cable and reconnect, and check for bent pins and cable damage, which it has neither. After that as it is out of warranty they told me the only they can advise is to take it to a repair shop and have the hub replaced.

The motor isn't broken. It's a shame you didn't ask them which of the two motor problems I indicated above it was because that would have taken us more quickly to a solution. First, disconnect the motor to see if it goes away. Hopefully, you have a separate hall sensor connector to test, then we can determine whether it's hall sensor or phase problem. What about ringing them again and asking for a copy of the error codes?

Edited April 16, 20242 yr by saneagle