Okay, what Mouth is talking about is called field flashing, and could be the fix. Your generator can lose its magnetism if stored for a long time, or if run for a long time with no load. If it loses its magnetism it doesn't produce any power (if you've got a volt meter you can verify if no/low power at the outlet). If so, the procedure is pretty simple to flash it, or restore its magnetism. Turn the generator on, plug in a corded drill into one of the outlets, if the drill has a directional switch make sure it is set to go forward not reverse, depress the trigger and then spin the chuck hard counter-clockwise several times (5 or 6 times) and the drill will start working after a few seconds if that was the problem.