My machine, CU410 circa 2000, was not powering up. Checked the power and all the safety switches but no luck. My son (an adult), was using the saw and had accidentally moved the shaper rotation selector to the '0' position. I have never had a reason to use the rotation switch so I didn't notice the new position. Although your video addressed this, I still didn't pick up on it because I didn't have the time to properly troubleshoot the combo. I am happy my machine is back on line!!