My son has a pride mobility 3 wheel go go scooter, purchased less then a year ago. He has MS and depends on the scooter to get around college. It stops intermittently, he hears 7 beeps, and then 2 more beeps. He had the throttle replaced last week and its happening more often. It always happens when he goes over a bump. Any help would be much appreciated.

The throttle potentiometer, which the throttle lever is attached to, is a component that is very prone to wear. Often there is a bad or uneven surface on the sliding contacts that can give poor performance or surging throughout the throttle range. I have had to replace several during the warranty period. According to your beep code description there could be a bad or intermittant component or a loose wiring connection of the speed pot, throttle pot or front to rear harness. I usually replace the speed potentiometer and the throttle potentiometer at the same time because these two components are interconnected. There could be a loose connection in the front console or loose connector. It is also a good idea to check the front to rear wiring harness connectors and harness for cuts or shorts. This also gives a 7 beep code. Check for binding of the throttle lever on the console case and a bent throttle shaft and mounting bracket. If the scooter is less than a year old it should be covered under warranty. Keep in mind that replacing these components under warranty requires a factory certified tech at a dealer. I hope this helps.