The toggle switch should have 3 positions. On, Off, and High Bypass. Does the motor run on high without stepping on the momentary switch when on high bypass? This will give an indication as to whether the switches are wired correctly. That's the first thing to verify (correct wiring). Motorguide applies a sealant to the connections from the factory. if the sealant is intact, then it's highly likely the wiring is correct. Once you've established the wiring is correct, move on to troubleshooting which component is faulty. I have seen where the wiring overheats enough to melt the insulation. this accompanied by non-responsive momentary switch. Remove the pedal and flip it over. burned wires/connections will be obvious. [links]