Ok, so I just went out again. Like I said, I don't need to the power on unless i'm on hills but I gave it a go on the flat today anyway to see how it felt. I let the dog off to run on his own and I had it at assist level one.. I was going about 9 miles an hour in fourth gear, again it just kicked in and out randomly and never stayed on for any length of time. I had assumed peddle assist meat that you peddled however you felt comfortable and it done some of the work for you. I didn't realise it would zoom me along accelerating then cutting out.
Tried it on the hill again at level five and the same thing happened. It kicked in and cut out (not because I was going 15 mph) and i eventually came to a stop again because I couldn't peddle up the hill (its pretty steep). So i used the throttle and it got me up no bother.
Am I doing something wrong? It's grand the throttle can get me up but i'd really like to be able to use the peddle assist.
It sounds like something is amiss with the pedal sensor. When the pedals are turning the motor should be working until the 15mph cut out speed. If you're below that speed the motor should always be assisting you.