3 Prong Dryer Cord Wiring Diagram

Hello readers, today we will discuss the 3 prong dryer cord wiring diagram. This article aims to provide you with a detailed guide on how to properly wire a 3 prong dryer cord. By following this guide, you will be able to ensure the safe and efficient functioning of your dryer. So without further ado, let’s dive into the world of dryer cord wiring!


1. What is a 3 Prong Dryer Cord?

A 3 prong dryer cord is a power cord that connects your electric dryer to a 3-prong wall outlet. It consists of three wires – two hot wires and one neutral wire. The hot wires deliver the electrical current, while the neutral wire carries the current back to the electrical panel.

2. How to Identify the Wires?

Before wiring the dryer cord, it is crucial to identify the wires correctly. The two outer wires are the hot wires, usually black and red in color. The middle wire is the neutral wire, typically white or gray. Make sure to double-check the wire colors before proceeding with the installation.

3. Tools and Materials Required

For wiring a 3 prong dryer cord, you will need the following tools and materials:

Tools Materials
Flathead Screwdriver 3 Prong Dryer Cord
Phillips Screwdriver Wire Strippers
Needle-Nose Pliers Electrical Tape

4. Disconnecting the Old Cord

The first step is to disconnect the old dryer cord. This involves unplugging the dryer from the power source and removing the access panel to expose the terminal block. Use a screwdriver to loosen the terminal screws and remove the wires from the block.

5. Preparing the New Cord

Before attaching the new dryer cord, ensure that it is compatible with your dryer and wall outlet. The cord should have a 3-prong plug that matches your wall outlet configuration. If it doesn’t, you may need to purchase an adapter or a different cord.

6. Wiring the New Cord

Begin by removing the access cover from the terminal block on the dryer. Then, strip the insulation from the ends of the wires on the new dryer cord. Attach the black wire to the left terminal, the red wire to the right terminal, and the white wire to the center terminal. Secure the wires by tightening the terminal screws.

7. Grounding the Dryer Cord

In a 3 prong dryer cord, there is no separate ground wire. The dryer chassis is grounded through the neutral wire. To ground the dryer cord, connect the green grounding wire from the cord to the grounding screw on the dryer chassis.

8. Securing the Connections

After wiring the new dryer cord, it is important to secure the connections to prevent them from coming loose. Use electrical tape to wrap around the terminal block and cover the exposed wires. This will provide insulation and added protection.

9. Testing the Dryer

Before using the dryer, it is crucial to test the wiring to ensure everything is functioning correctly. Plug the dryer into the wall outlet and turn it on. If the dryer operates without any issues, congratulations, you have successfully wired the 3 prong dryer cord!

10. Alternative Wiring Options

In some cases, your home may have a 4-prong wall outlet instead of a 3-prong one. If that is the case, you will need to purchase a 4 prong dryer cord and follow a slightly different wiring diagram. Make sure to refer to the manufacturer’s instructions or consult a professional electrician for guidance.


Wiring a 3 prong dryer cord is a relatively simple process if you follow the correct steps. By ensuring the proper connection of the wires and grounding, you can ensure the safe and efficient operation of your dryer. Remember to always prioritize safety and consult a professional if you are unsure about any aspect of the wiring process. Now you have the knowledge to confidently wire your dryer and enjoy its benefits!

FAQ (Frequently Asked Questions)

Q: Can I use a 4 prong dryer cord with a 3 prong wall outlet?

A: It is not recommended to use a 4 prong dryer cord with a 3 prong wall outlet. The two systems have different grounding methods, and using an incompatible cord can lead to safety hazards. It is best to use the appropriate cord for your specific setup.

Q: Is it necessary to hire a professional electrician for wiring a dryer cord?

A: While wiring a dryer cord can be done by homeowners, it is always recommended to hire a professional electrician, especially if you are not familiar with electrical work. An electrician can ensure that the wiring is done correctly and in compliance with local electrical codes.

Q: Can I replace the dryer cord myself if it gets damaged?

A: Yes, you can replace a damaged dryer cord yourself by following the proper steps and safety precautions. However, always make sure to unplug the dryer from the power source before attempting any repairs or replacements.