On the door latch is a switch called the spin enable switch. The wax motor pushes the switch after it has locked the door. You will have to lift the top to check it. With the top up, set the washer to spin and you can watch the wax motor do its thing. The spin switch is on the right. Disconnect the wires and check for closed contacts with an ohmmeter.Also there are three out of balance switches fastened to the tub. You can check for a continuous circuit by laying the console forward. Where the wires come up at the back left corner, look for two blue wires. There is a disconnect there and you can check for continuity through the switch circuit.