Beautiful Work Wiring A 4 Wire Dryer Plug
Wiring for a 4 prong dryer receptacle.
Wiring a 4 wire dryer plug. In the main service panel breaker box find the double pole circuit breaker that controls the clothes dryer and flip the breaker to the off position. If your dryer has a pre attached white wire both wires will be connected the neutral terminal. Connect the green cord wire to the ground screw.
You may need to disconnect the dryer vent to move and work on the dryer. The ground is now a dedicated wire also. A 4 prong dryer outlet is wired as a 120 240 volt circuit.
You will need to purchase a 4 wire dryer cord. Remove the 3 wire dryer cord and install the replacement 4 wire dryer cord. The 120 volt service is for the dryer s timers sensors and other electronics while the 240 volt service supplies power to the heating elements.
But if you notice both the neutral and the ground wires both connect to the same ground bar inside the panel box. Dryer branch circuits were wired with 10 3 w gr romex nmc nonmetallic sheathed cable so the fourth wire is already there but you will have to install the new 4p 30 amp receptacle. As you can see there is now an added dedicated neutral.
This calls for a 30 amp double pole breaker wired with 10 awg wire. Yellow wire white the 4 prong dryer outlet wiring diagram above is ran with a 10 3 with ground cable. You can replace a damaged dryer wall receptacle without rewiring the branch circuit to accommodate the fourth wire machine grounding conductor but if you move the dryer receptacle to a new location you will have to rewire the branch circuit.
For example when a module will be powered up and it also sends out a signal of half the voltage plus the technician would not know this he would think he provides an issue as this individual would expect a new 12v. Next where the wires are connected to the electric dryer you will need to remove the bonding jumper which goes between the frame grounded screw and the neutral terminal as shown in the 3 wire hook up wiring diagram below. Connect the white cord wire to the center neutral terminal.