The person at the store where I bought my pans told me that lightweight aluminum pans don't work well with induction cookers and that heavy-bottom, stainless steel pans work best. This is what I use and I've had no problems so far.
If you have the cooker model number... have you tried to do a search with Google and see if you find any help?
If it's a model made in China and the manual is only in Chinese still you can find someone to help
UPDATE: I'm retarded. I avoided cooking at home for a whole year because I didn't know how to work the damn Induction Cooker. You see, I purchased Aluminum Light Weight Teflon pans from IKEA. And that was the problem.
Last night I bought Stainless Steel pots and pans. And walla... the whole damn thing worked right and away!!! So guys and gals... only use STAINLESS STEEL pots and pans when using a plug-in induction cooker for one. Hmmm... soy sauce fried chicken never tasted sooooo damn good.