How to Wire a Westinghouse 77021 Switch

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The Westinghouse 77021 is a replacement switch for ceiling fans. This switch is a pull-chain style with high, medium and low positions, as well as an off position. Pull-chain switches often fail because the chain breaks or the internal mechanism gets damaged. Replacing one is simple if you choose the right part for the application. This switch is a four-wire unit designed for specific ceiling fans. Be careful when working around electricity, as there is enough power in any home circuit to seriously hurt you.

Things You'll Need

  • Noncontact voltage detector
  • Screwdriver
  • Paper clip
  • Turn off the power to the circuit you are working on at the home's electrical distribution panel. Confirm that the power is off by touching a noncontact voltage detector to the wire's insulation.

  • Remove the switch housing cover from the ceiling fan with a screwdriver. If the ceiling fan has a light, remove it as well, making note of the wiring connections.

  • Unscrew the chain guide on the outside of the switch housing and remove the old switch.

  • Write down the position and color of each wire attached to the switch. For example: Terminal L = black wire.

  • Straighten out the paper clip and insert into the wire's terminal. Push down on the spring and pull out the wire. Repeat this process for the other three wires.

  • Push the wires into the terminal slots on the new switch. Match the same positions as the old switch.

  • Mount the new switch into the ceiling fan with the screws removed and reassemble the light.

Tips & Warnings

  • Working around electricity is dangerous. Always make sure that the power is off before beginning any work.

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References

  • Photo Credit Thinkstock Images/Comstock/Getty Images
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