Hello I need help! I been working on this lift for several weeks. I sent the controller to get fix and when it came back started giving me this problem. When I'm pressing the accelerator pedal the hydraulic pump goes on high and doesn't stop until a release the pedal. I took the controller off and send it again for warranty work but they told me that everything checks good. Had anyone encountered this problem before? Lift info J60XN-34 serial# A276B01849H