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When an appliance does not work, one of the first things you should check is the power plug. Plugs that are cracked, burnt, or has loose prongs can damage the appliance, or the outlet. Knowing how to repair an electric plug will save you from buying a whole new appliance.

There are several different kinds of plugs, a flat-cord plug, a quick-connect plug, the molded plug, the rounded-cord plug, a twist-lock plug, or a heater plug. The three main types are the flat-cord plug, round-cord plug, and the quick-connect plug. Here are directions on fixing each type. As always, make sure the appliance is unplugged. You do not want to get shocked or electrocuted while fixing the plug.

1. Flat-cord plug
First, buy a new plug. As with all replacement, buy the same style plug as you had before. Take the new plug and unscrew the core from its shell. Then, remove the old plug from the wire, by cutting the cord with cutting pliers.

Take the wire and strip it. Then, you will have to separate the 2 wires inside. Take each of those wires, and strip them as well. Tie the wires in an underwriters knot, and connect each end to the notches on the plug. make sure they are tight underneath each screw. Then place the plug core back in the plug shell. Screw in the retaining screws. And you have a new plug.

2. Quick-connect plug
Buy a new quick-plug. Pinch the prongs of the new plug, and pull out the plug core. Then, remove the old plug from the wire, by cutting the cord with cutting pliers. This time, do not strip the wires. Feed the wire through the rear of the plug shell. Spread the prongs apart, and place the wire into the plug core. Then, squeeze the prongs together, and insert the prongs back into the plug shell.

3. Round-cord plug
Buy a new round-cord plug, and pry off the insulating disc. Then, remove the plug from the shell. Then, take the old cord, and cut off the plug. Cut the insulation back from both wires about a 1/2 inch. Then, separate the wires, and cut the individual insulation back about 3/4 of an inch. Tie an underwriters knot in the wires, and connect the wires to the plug terminals. Just like a flat-cord plug, make sure they fit tightly under the screws. If you have a three-prong plug, hook the white wire to the silver screw, the black wire to the brass screw, and the green wire to the green screw. Then, put the insulating disk back on, and tighten the clamp.