Wisper 705 SEL

[Ormerod2010]

Hi everyone, my wife has had a Wisper 705 SEL for several years although she has probably only done around 100 miles on the bike in all that time. It has been stored in the garage and I have recently taken it out of mothball and installed a new battery. However when I tried to switch on the LED controller display only the first LED (of six pedal assist settings) illuminates. Looking in the diagnostic section of the manual it suggests that the motor is seeing excessive current. The motor cabling looks fine, the motor itself has seen very little operation and has never got wet or damp so it seems a little surprising if this is the problem. Any suggestions on how I can investigate this further and rectify the problem? Many thanks.

 

[Jonah]

Hi everyone, my wife has had a Wisper 705 SEL for several years although she has probably only done around 100 miles on the bike in all that time. It has been stored in the garage and I have recently taken it out of mothball and installed a new battery. However when I tried to switch on the LED controller display only the first LED (of six pedal assist settings) illuminates. Looking in the diagnostic section of the manual it suggests that the motor is seeing excessive current. The motor cabling looks fine, the motor itself has seen very little operation and has never got wet or damp so it seems a little surprising if this is the problem. Any suggestions on how I can investigate this further and rectify the problem? Many thanks.

Where did you get the new battery? Are you sure about it specifications?

 

[Ormerod2010]

Hi Jonah, its from China but got it directly from a battery supplier (Yose Power). They get very good reviews and it appears to charge well and gives 42V across the output terminals. It may be that my original 'Wisper' battery still has some life in it as I assumed that the original problem was the battery. However the latter is several years old so I felt it was time for a new one anyway.

 

[Jonah]

I wouldn’t think it’s a motor issue. Probably how the battery communicates with the controller. My wife has a similar aged Wisper. We had to have a new controller and display a while back, the motor is still going strong after several thousand miles. Have you contacted Wisper customer support?

 

[Ormerod2010]

Hi Jonah, yes I agree it does seem a bit unlikely its the motor but thats what the diagnostics are suggesting. I've contacted the the customer support at Wisper and hope they will respond.

 

[Wisper Bikes]

Hi Jonah, yes I agree it does seem a bit unlikely its the motor but thats what the diagnostics are suggesting. I've contacted the the customer support at Wisper and hope they will respond.

Hi Ormerod.

Have we responded?

Is there anything I can do to assit?

All the best, David

 

[Ormerod2010]

Hi David, I spoke to Adrian a couple of weeks ago and he suggested that its likely to be the controller. He told me to e-mail my contact details to the support team which I did but I haven't heard anything since. Regards, Jack

 

[Wisper Bikes]

Hi Jack, sorry about that, we have been exceptionally busy with only Adrian and Andrew fielding calls. I will remind them.

All the best, David

 

[Wisper Bikes]

Please send me your email address to david@wisperbikes.com

Thanks! All the best, David

 

[Nealh]

Please send me your email address to david@wisperbikes.com

Thanks! All the best, David

The Boss is on the case, great personnel service again from David.