I have a pair of Pentair PE24VA actuators (24VAC) I just bought and am trying to install. The actuator has three wires: apply 24vac to the red for CW rotation, 24vac to the white for CCW rotation, and the black wire is the "neutral" of the 24vac power for each motor. Each power wire goes to a separate motor (they're stacked on top of each other like hockey pucks). The problem is that when I apply power to either the red OR the white wire, BOTH motors energize fighting each other. Using a voltmeter, I've confirmed that if you apply power to one wire going in, you get 24vac coming back out the other too. I've traced the wiring inside and out and nothing is shorted out and everything checks out OK. Both actuators are acting this same way right out of the box, so I'd be surprised that both of them happen to simultaneously suffer the same malfunction. Anyone ever see this before? What could be wrong?