By checking for electrical wiring faults and incorrect wiring before preoblems appear, you can make your home's electrical connections safe and possibily save your home. Too often, homes have small electrical connection problems that go unnoticed. It's not that they aren't there, it's just that you may not be aware of them.
Wires may be incorrectly connected to a switch or an outlet. then again, the connections may be in a junction box that is covered up above a drop ceiling or in a basement or crawlspace. There is also the possibilty that there is too much or not enough insulation on a wire connection. There is also the issue with proper grounding or lack of it. Bare wires always present a hidden danger and should be corrected immediately. And my all time pet peeve, when someone connects too many wires under one terminal.
