There are certain things throughout the home that are easily taken for granted. Take your light switches for example. Over the years, they are used thousands of times, and eventually, they will stop working and require replacement. There are certain red flags of a bad switch that are obvious, such as a pop, crackle, or snap when you flip it. If you have a light switch that you are concerned about, keep reading to learn some tips on how you can diagnose the issue and what steps to take next.