Test Wall Light Switch

This video will show you how to check your light switch and how to replace a.

Test wall light switch.

Use extreme caution when performing this test it will only work when the power to the switch is turned on. A continuity tester can be used to test the light switch while the circuit is off or the switch has been removed. Once you ve confirmed that there s no electrical current in your switch you are ready to remove it. Notice the burn marks on a failed switch caused by an internal arc flash.

They have two leads and a light the lights up when current is sensed. The switch is good if the continuity tester lights. The receptacle may be bad. Testing any type of light switch takes a few basic tools.

Ge c by ge 3 wire smart switch on off button style single pole 3 way white smart illuminated led touch light switch with wall plate item 1608273 model 93120080. Your switch may be attached to a frame by screws which you ll need to take out or it may just be sitting up against the wall. Troubleshoot 3 way switches troubleshoot 4 way switches. The tester light should not come on.

Keep the circuit breaker flipped off for this. How to troubleshoot light switches and replace it can be easy and d i y project. Pull the light switch from the wall. You ll need screwdrivers usually one flat head and one phillips for removing the switch and disconnecting the switch wires.

And for making the test you ll need either a continuity tester or a. Test the switch with a continuity tester. Tools for testing light switches. You also need a non contact voltage tester to check the switch and wires for power before touching them.

This type of tester has two lead wires that uses the battery voltage of the tester to test a circuit which in this example is the circuit components of a switch. Then flip the switch to the on position and touch both terminals with a probe from the tester. The problem is that the light in the tester acts as a bridge for the circuit when the switch is off. The light switch may be bad.

This type will not work properly when used for a light switch. Set the switch to the off position and touch both terminals on the side that held the wires.