Test Wall Light Switch

A continuity tester can be used to test the light switch while the circuit is off or the switch has been removed.

Test wall light switch.

Tools for testing light switches. 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. The problem is that the light in the tester acts as a bridge for the circuit when the switch is off. Use extreme caution when performing this test it will only work when the power to the switch is turned on.

Pull the light switch from the wall. This video will show you how to check your light switch and how to replace a. The switch is good if the continuity tester lights. 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.

Troubleshoot 3 way switches troubleshoot 4 way switches. 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. Keep the circuit breaker flipped off for this. This type will not work properly when used for a light switch.

You also need a non contact voltage tester to check the switch and wires for power before touching them. How to troubleshoot light switches and replace it can be easy and d i y project. Testing any type of light switch takes a few basic tools. Set the switch to the off position and touch both terminals on the side that held the wires.

Once you ve confirmed that there s no electrical current in your switch you are ready to remove it. And for making the test you ll need either a continuity tester or a. Test the ground wires in the wall switch with a two lead circuit tester which has a red and a black lead running into black body with a small light. Test the switch with a continuity tester.

Then flip the switch to the on position and touch both terminals with a probe from the tester. You ll need screwdrivers usually one flat head and one phillips for removing the switch and disconnecting the switch wires. The tester light should not come on. There is a loose connection in the circuit.

The receptacle may be bad. Notice the burn marks on a failed switch caused by an internal arc flash.