How do I test a switch to see if it is working?

Use a continuity tester. First, turn the switch to the “off” position so that there isn’t any electricity going to it. Remove the switch from the wall (leave the wires connected) and touch the tester’s lead to both of the switch’s terminals. When the switch is in the “off” position, the tester should not register. Now flip the switch to the “on” position. The tester should light up. If it doesn’t, you have a bad switch and need to replace it.

Check your state and local codes before starting any project. Follow all safety precautions. Every effort has been made to ensure the accuracy and safety of this information. Neither Westlake nor any contributor can be held responsible for damages or injuries resulting from the use of the information in this document.

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