very noisy motor with Shenzhen (e-crazyman) controller

wotwozere

Esteemed Pedelecer
Sep 6, 2008
280
1
Hi

It could well be the front mudguard I had the same problem on my izip

thx

Bob
 

Caph

Esteemed Pedelecer
Feb 29, 2008
440
11
Nottingham, UK
Hi

It could well be the front mudguard I had the same problem on my izip

thx

Bob
My bike started to make a really loud horrible noise from the front motor today. It was so bad I ended up cycling without power. I was convinced the motor was knackered with all this freezing cold weather and snow. Having read your post I was sceptical but I thought what the hell and detatched the front mud guard and hey presto the noise was gone.

Just wanted to say a big thanks. You've saved me a long trip back to the dealer this weekend!

(Also, thank goodness for the forum search facility)
 

Sector

Pedelecer
Mar 5, 2007
102
0
Leicestershire Le8
Got it! Green and yellow swapped on both sensors and phase :)
I was just setting out to do the Knuckles (Endless Sphere) method of sorting out motor/controller wiring when I saw the above advice. Just put a 5 amp fuse in my 36 volt battery pack, then connected my E-crazyman BLP 3625 (does it just mean 36v 25A) to my Quando motor as advised and it worked fine. I gave up on the full Knuckles method as I didn't seem to need it.

Maestro, your advice saved me lots of time. Thanks.
 

The Maestro

Esteemed Pedelecer
May 15, 2008
296
0
I was just setting out to do the Knuckles (Endless Sphere) method of sorting out motor/controller wiring when I saw the above advice. Just put a 5 amp fuse in my 36 volt battery pack, then connected my E-crazyman BLP 3625 (does it just mean 36v 25A) to my Quando motor as advised and it worked fine. I gave up on the full Knuckles method as I didn't seem to need it.

Maestro, your advice saved me lots of time. Thanks.
Endless Sphere tsk, Imbeciles! Actually I love them really, I only worked out how do it by a bit of educated guesswork based on Endless Sphere posts and posts on here.

Thanks for the thanks though its nice to know that people find this information and I'm sure encourages people to share more :)

By the way, my bikes done about 1000 miles since that rewire so you shouldn't have any issues. The only thing I noticed (possibly) was a slight throttle lag with this controller, but only a fraction of a second.
 
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