Why are you turning it on just as quick as you turn it off? I've never done that so i can't confirm if this is abnormal or normal. Per my experience with normal function as just turning it on and then off, it normal but the quick thing you do, can't go there. I'm thinking if you do normal, being, turn it on when you want to use and then turn it off when finished, it starts and shuts off, you good to go but hopefully some more experienced riders will chime in?