Smartmotion Pacer motor not working?

[VernonW]

Ran into a problem while out riding yesterday. I was going up a short but steep hill and my pedal assist stops working. So I hit the throttle and that didn't work either. Went home,completely charged battery,checked voltage, checked the lights and it all showed normal but now it still doesn't work. Motor is still under warranty. Any thoughts? Thanks in advance.