No power

[Trev1]

I have an NCM Moscow Plus EMTB, I'm having issues with Power. When I turn the power on, sometimes the bike does not connect. I turn it off and on again, and that's when the power kicks in. I've had the bike for 6 months, up till 3 months I had no issues with power. I've just put a new das kit to take me from 24kph to 28kph. Since I've had the new Das Kit power controller, this is when the issues started. The new kit comes with a throttle and that doen's work.

When the bike went into the workshop to sort this issue, they couldn't find anything wrong with it. I took video of being in a medium gear, cyclying at a low speed, there was no power bars, when I put it in 6th gear on the kit, there was still no power bars. I was cyclying in manual mode. I returned the bike back to the shop, they still couldn't find any issues with it. They eventually replaced the controller box. I've now emailed the shop again to let them know and I'm still waiting for a reply. My bike wasn't the only bike in the shop with this issue.

Is there anyone out there that could offer some advice or solutions to this problem, I'd be very grateful.

 

[JL0256]

Hey Trey — sounds like the DAS kit/controller swap is the common trigger here.

A few quick things I’d check:

1.Reseat every connector between battery → controller → display (especially any waterproof plugs) and look for bent pins/moisture.

2.Make sure the DAS controller is matched to your display + motor (wrong combo can cause intermittent “no assist / no bars”).

3.Check the brake cut-off sensors aren’t sticking or misaligned (a faulty cut-off will kill assist while everything looks “on”).

4.Verify the speed sensor + magnet gap (too far/shifted can confuse assist and cause dropouts).

5.If you still have the old controller, try swapping back for a ride — if the issue disappears, it’s almost certainly the DAS controller/loom.

If you can, post the controller model/label and any error codes on the display and we can narrow it down.