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How To Replace The Plug And Cord On An Air Conditioner

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If you own a window air conditioner, there's a good chance that you're eventually going to have a problem with the plug or power cord going to that AC. Plugs are pulled out and pushed in countless times, which can cause the cord to start to come apart. You can even end up with a short-circuited, faulty power cord. In addition to this kind of damage, pet owners will often find their pets will decide that a dangling, unplugged cord is nothing more than a chew toy. Fortunately, replacing the plug and cord is a relatively simple project.

What You Will Need

  • Set of Screwdrivers

  • Wire Crimper

  • Wire Connectors

  • New Power Cord

Step 1. Unplug the air conditioner from the wall. If the power cord or plug is so damaged that this seems dangerous, turn off the breaker going to the unit before you unplug the air conditioner.

Step 2. Take the front cover off.

Step 3. Use a screwdriver to take out any screws holding on the panel that covers the spot where the electrical cord goes into your air conditioner. Once you do this, you should be able to see where the individual wires from the power cord are connected to the air conditioner.

Step 4. Before proceeding, pay close attention to which wires from the cord are going to which connectors. Some older units with two prong cords have only two wires, but newer air conditioners are going to have a three prong cord with three wires. With a three prong cord, you have a ground wire, a neutral wire and a hot wire.

Step 5. If the connectors are the slip on types, you can just slip them off. If not, you will have to unscrew them.

Step 6. If there is a clamp holding the cord in place where it goes into the air conditioner, loosen it. Remove and discard the old power cord.

Step 7. Using a wire crimper, attached the same type of connectors to the wires on the end of the new power cord as were on the old power cord (slip on or screw-on).

Step 8. Insert the power cord into the air conditioner. It's best for it to go in along the same route as the original cord. Retighten the clamp (if any) holding the cord in place.

Step 9. Connect the power cord wires to the terminals inside the air conditioner, making sure you get them all in the same place as before.

Step 10. Screw the panel you removed back on and replace the front cover. You can now plug in the air conditioner and test it.


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