Why Does My 3 Way Switch Not Work May 21, 2019 Linear WD500Z installation issues. I"m trying to hook a WD500Z into a 3 way switch setup in a new house. This would be the master switch and, if I can ever get it working, I would put one of the WT00Z switches as a slave.Here& How Do I Wire A Ceiling FanOld House Wiring IdentificationStep By Step Electrical WiringTwo Way HookHow To Wire A Double Pole Switch Diagram2 Lamps 1 SwitchOn Off Circuit DiagramDryer Extension Cord 4 Prong