Known Issues & Problems with Zen Products + Help, Solutions & Fixes

[troehrkasse]

No Ebike is perfect, this is a thread dedicated to sharing known issues or problems with electric bikes from Zen as well as any help and solutions you know of. Sometimes that means a DIY fix and other times it can mean a recall, software update or part replacement by a dealer.

Please be respectful and constructive with feedback, this is not a space for hate speech. In many cases, representatives from the company will see feedback and use it to improve their product. In the end, the goal is to enjoy riding and help each other go further and be safer.

 

[Grenseal]

I have an annoying issue with the Photon Pro. There is a ticking noise coming from the motor when power is applied, ie. when I pedal with assist or when I use the throttle. It sounds like maybe a gear is damage or some dirt got in. Is this a common issue? How can I fix this?

 

[DrewInSK]

I have an annoying issue with the Photon Pro. There is a ticking noise coming from the motor when power is applied, ie. when I pedal with assist or when I use the throttle. It sounds like maybe a gear is damage or some dirt got in. Is this a common issue? How can I fix this?

Best bet is to try and record the sounds and reach out to the service team with the recording, I think.

 

[Archmagination2002]

I am having some electrical problems with the Photon Pro, seems to be a controller board failure or loose connection somewhere.

1) The front light dims for a split second before returning to normal. It happens more often when it’s colder.

It’s random; sometimes bumps, turns, or just going straight cause it. I haven’t been able to pinpoint the cause.



2) Pedaling causes a loss of power. It usually happens when the light dims, but sometimes it just hesitates or loses power.

This happens in the mornings and afternoons. It’s as random as the light.



3) Started this week. The handlebar controller suddenly resets to the 0 assist setting. I briefly saw the bike energy flow diagram when it does this, but that’s all I’ve found.

 

[Gionnirocket]

Have you checked the battery connection?
Pull the battery and look for discoloration of the connection.

 

[Archmagination2002]

Have you checked the battery connection?
Pull the battery and look for discoloration of the connection.

Pulled out and checked. It all looks flawless to me. Really nicely designed too.

 

[Gionnirocket]

Pulled out and checked. It all looks flawless to me. Really nicely designed too.

That's good. If possible, post a Pic, I'm now curious
Are you able to see where the power enters the controller. There may be another connection point between the controller and the battery.
Then I would check all other connection points and re_seat them.
If all that looks good... it may be as you initially deduced. Faulty controller