A problem with my really reliable old Freego Hawk has come up that I think may be quite simple but I'm hoping someone will know. It's always been really good with no faults at all, but after disconnecting the front LED light when doing some work on it, when I switch it on with the key at the battery, it now runs the checks through the three power settings, with the LED display lights going on and off, and then is ready to use with the power setting on medium (should be low) and won't now switch between settings. Putting the front light on or disconnecting it initally seemed to make it return to normal, but now it does'nt (and that may just have been incidental). I've physically checked and cleaned all the connections for the controller, rear motor etc. and tried different batteries, but it remains the same. Any thoughts would be very welcome. Thanks