Tsdz2 assist level problem

[Ianbythesea]

Hi,
l‘ve had a tsdz2 (36v 250w with vlcd5 display) for 4 years now and have done about 1300miles (so it’s not used too much). It was working fine a couple of days ago but today when I used it I have the following problem when trying to change assist levels (using either the vlcd5 or remote control):
I can only change up from eco to tour but not to speed or turbo.
i can change down from tour to eco but I can then not go back up to tour.
i can change down from eco to no power but can then not go back up to eco.

The only way I can get assist back is to power the battery off then on. I can’t power off using the display.
I am getting the appropriate assist level so the motor is working but just cant increase the assist level above tour.

Could this be a problem with the vlcd5 display or the motor controller?

Thanks,
Ian.

 

[Sturmey]

I think I can simulate the situation you describe by permanently holding down one of the '+' (plus) buttons, so I reckon you have a stuck '+' button either on the display or on the handlebars. In the first instance, I would plug out the extension cable under the display that connects the handlebar buttons to the display and see does your bike work with just the buttons on the display.

 

[Ianbythesea]

Yes that appears to have been my problem. I removed the remote and the +/- on the display now work correctly. I had replaced the remote a while ago as the + stopped working on it but the display buttons were uneffected that time…

Annoyingly I have a spare but the +/- don’t work on it, though the display buttons still works ok. It also doesn’t work on my wife’s tdzs2 either so I guess it’s just a dud remote.

Thanks a lot for your help.