v3 stopped, but castle link still works.???

[Rnemhrd]

Last night I tested my new v3, neu1515/1y on neuenergy 4s. Once the truck just shut down. Dead . When I went to get it it started working. Today I went to have a turkey day bash and the truck would shut down and start up 3 or 4 times at the start then ran fine After about 10 great min. it just died. Nothing works. For the heck of it I hooked up the castle link and it is fine. I am wondering if it is the on off switch, and will hard wiring it void the warranty. I really do not want to open it to see if it is just a simple wire fix and have the warranty voided. Not sure what to do other than call castle. I think it is the switch though.