How to test a single pole switch

If your going to test a switch your going to need one thing. A meter, now you don't need an expensive meter just something that shows current. Something that looks like the one on the top right of this page.

How to test a switch

If you have any questions please ask in the comment link below, I will answer them to the best of my ability, also if you have future projects that you would like step by step instructions please post in the comment box I will usually answer the same day.

1) Tools.

a) AC meter

b) Phillip head screw driver

c) skinny flat head screw driver

2) Remove the plate cover from the switch. This will be the easiest part of your project. On the top and bottom of the switch there will be small screws. You will need the thin flat head screwdriver to remove these. If the location you are installing the switch has multiple switches you will need to remove all the plate screws. Then remove the plate and place the screws and the plate together for replacing later. Do not lose those little screws believe me they are easy to lose.

3) Remove the switches. OK the fun part. Take a drill or a Phillips head screw driver and take out the screws on the top and bottom of the switches. Now grab the yoke of the switch (that's the top and bottom of the switch) do not grab the switch by the side we want to test the switches and the only way to do this is to pull out the switches. The power is located on the side so if you grab it by the sides you will get shocked. This is electricity SAFETY FIRST!!!!! So grab the yoke and pull out the switches.

4) Testing a single pole switch. A single pole switch has only two screws on the switch.

a) Start with your switch in the down position

b) Set your meter to AC. There may be multiple voltages to set to on the meter, you just need to put it at a voltage higher than what you are working on. So if you are working on a light or receptacle it will probably be 200.

c) Put one of the leads of the meter on the metal box, if you don't have a metal box you will have some bare copper wires in the box, put it there. Take the other lead and put it on one of the screws. If you have power on the screw, test the other screw. Remember your switch is in the off position, it should say on the switch "off and "on". We are looking for a screw that has no power. Now if both screws have power you have a bad switch. Turn the power off and replace. If you found the screw with no power then test it by tuning the switch to the "on" position. Your screw should now have power. If it does not have power you have a bad switch, turn the power off and replace. One of the screws will have constant power the other will not depending on the position of the switch. If your switch does not follow this rule you have a bad switch, if it does the problem may be the light, light bulbs or receptacle your trying to get working.

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John

Check your state and local codes before starting any project. Follow all safety precautions. Every effort has been made to ensure accuracy and safety. I can not be held responsible for damages or injuries resulting from the use of the information in this document.