I said I was guessing. I'm not popping any breakers... ALWAYS over-estimate your current draw. Small wiring sux up voltage, which causes amperage to rise. A 35w motor could be pulling much more than you think. There are way too many variables to dive into here, but a good multi-meter (with an amp clamp) could help a lot in finding the problem. The issue could be as easy as old breakers, or as difficult as a capacitance/resistance issue with the in-wall wiring. Get a meter, check your house, and let us know what comes out. Easy way #1: Grab your cord near the wall. It should be warm to the touch, but NOT hot, or too hot to hold. If it's too hot, try a larger gauge cord & see if that helps.