Electrical Question from Bruce about Installing a Wall Oven
I am installing a new wall oven with 4-wire cord that I will connect to the house 4-wire cord. Identifying the Wires for a 4-Wire Wall Oven.
Wiring a New Wall Oven
Electrical Question: I am installing a new wall oven with 4-wire cord that I will connect to the house 4-wire cord.
- The red and black hot wires look identical to the neutral white wire. I need to confirm which one was the white neutral wire, so I used a voltage meter. Two of the three wires indicated voltage, while one did not. Just to be sure, can I assume the one without voltage is the white neutral?
This electrical wiring question came from Bruce, a Homeowner, in Gig Harbor, Washington.
Thanks for your electrical wiring question Bruce.
Identifying the Wires for a 4-Wire Wall Oven
Application: Installing a 240 Volt Wall Oven.
Skill Level: Intermediate to Advanced – Best installed by a Licensed Electrical Contractor or Appliance Technician.
Tools Required: Basic Electricians Pouch Hand Tools, AC Voltage Tester, a support for the oven before inserting it into the cabinet.
Estimated Time: Depends on personal level experience, ability to work with tools and connect 240 volt electrical circuit wiring.
Precaution: Identify the oven circuit at the panel, turn it OFF and Tag it with a Note before making the oven wiring connections.
Notice: When installing an additional 240 volt oven circuit the work should be done according to local and national electrical codes with a permit and be inspected.
Testing the Wires of a Wall Oven
- Testing the 240 Volt Wires
- When using an AC Voltage Tester where the test leads are connected to the two circuit power wires the display will show a 240 Volt reading.
- Testing the Neutral Wire
- When using an AC Voltage Tester where one test lead is connected to the neutral wire, and the other test lead is connected to the ground wire the display will show a 0 Volt reading.
- Testing each Circuit Power Wire
- When using an AC Voltage Tester where one test lead is connected to the neutral wire OR the Ground Wire, and the other test lead is connected to one of the circuit power wires the display will show a 120 Volt reading.
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