DIY

The sideways slot does not raise what the wiring can carry; capacity is set by the conductor and the breaker, and the receptacle only matches a plug shape.

The power converter built into a combination outlet runs warm inside a sealed wall box, and electronics age on a different schedule than copper contacts do.

A hinged lid only protects the receptacle when it is closed, which is exactly what it cannot do while an extension cord is plugged in underneath it.

One term describes the device surviving outdoor conditions and the other describes the enclosure keeping water out; an outdoor outlet needs both to be right.

A device that clicks and pops back out is reporting a condition on the circuit rather than announcing its own failure, and the sequence of checks matters.

Reversing supply and downstream connections on a ground-fault receptacle leaves the device powered while quietly removing protection from everything it covered.

A ground-fault device watches the balance between hot and neutral rather than the ground wire, so it can protect outlets that have no equipment ground at all.

Installing a three-slot receptacle on ungrounded cable gives an appliance somewhere to put the third pin and nothing for that pin to connect to.

The spring clip on a self-grounding device bonds the yoke to the mounting screw, but it cannot create a ground that the metal box does not already have.

A plug that slides out on its own points to worn contacts inside the receptacle, a mechanical failure that replacement fixes and prong bending does not.