Listen for a 'click' when the motor first starts, or spins down. That would be a motor with a centrifugal switch, and you'll hear the weights snapping back and forth., which won't work with the controller. Given the power rating it likely does NOT have a centrifugal switch, so you should be OK with your controller. If you can monitor the motor current with a scope, you will see an abrupt, step change in current if is has a switch, and rounded pulse if it just uses a static capacitor. R --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .