I wired up the the Fridgedaire wall oven and it worked for two days and then just shut off. It has a green, white, black and red. The white and green are taped together coming out of the oven. The service wires are 12/2, black, white and bare copper. The white is power. I checked the voltage on the white service wire and it has 125 volts. I connected the power wire (white) to the red, the bare copper from the service to the white and green from oven and black to black. The oven won't even turn on. I have a fuse plug that gives it power.

Hi,
You have to check electricity coming to the oven. It is 3 wire coming to the oven. Red, white and black. Between red and black you should have 240V. Between white and red - 120V, between white and black - 120V.

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Simply put, it won't work. New oven=white is neutral, black and red are power but not on the same "leg", and green is ground. If you use a meter, black and red should give you 208-230 or so volts. Wires from wall=White is neutral, blank is voltage (probably 120 or so volts) and bare copper is ground. The dual voltage plug can be used for either 125 or 250 volts, not both as required by the new oven. Need an new circuit pulled and wire/breaker matched to new oven power requirements.

Line, Neutral,Ground 120 volt system Neutral wire should be white in color black and red wire would indicate 28/240 volts

the installation instructions are in the user manual and the wiring must be done by an accredited , qualified electrician
do anything yourself and the warranty is void

It should have a 50 amp circuit. Have an electrician run the proper circuit for you according to the manual.

IF you nhave a 3 wire feed fronm the house for your range, you connect the red and black for the power and then use the copper wire from the wall to connect to the white and copper wires from the range. All new construction must have a 4 wire feed to a range and dryer.

red and black wires are the two "hot" power wires, the white is your "N" neutral connection and the bare goes to the appliance metel case as safety ground

on a 220v unit you dont use the 110 ,,, connect the red and black as power and the white as ground / larry

sounds as if you need an electrician, the red is a "hot" lead and if not at the wall id say you have the wrong power supply at location

If you are speaking of the 240v connection to hook up the oven to the electrical source, then white is the neutral(white to white), black is one of the 240v hot wires(black to black), and red is the other 240v hot wire(red to red).
Finally there is a bare or green color ground wire that goes to the bare or green wire form your source.
normally, the two outside wires on a terminal strip are the hot wires and the middle onif the neutral(white). It does not matter which wire(red or black) goes to what hot terminal at the appliance.
If you are talking about the internal wiring, I can get you a schematic of that.