Guys, bought a 36v ultrex from a vendor on here. About 7 months ago. Fast forward to today. When I hit switch to power up all 3 lights blink and nothing happens. I started working at 50% for a hr or 2. Then totally quit. Batterys are new. Is it the ultrex switch? I stopped at 10 am today in a tournament as the boat is useless with out it. Thoughts