Umair Gaines
Whether you're dealing with a broken wall plug or simply want to upgrade to a newer model, replacing an electrical wall plug is a relatively straightforward task that most DIY enthusiasts can tackle. That said, it's important to approach the task with caution, as electricity is inherently dangerous. Before you begin, ensure you have the proper protective equipment, including insulated gloves and safety glasses. It's also crucial to shut off the power to the specific area of the house where you'll be working. Once you've confirmed that the power is off, you can start by removing the faceplate or cover of the outlet and carefully disconnecting the wires. From there, you can install the new wall plug, ensuring that it matches the voltage rating and amperage of the wire. Finally, restore power and test your new wall plug to ensure it's functioning correctly.
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What You'll Learn
Turn off the power
Before attempting to replace an electrical wall plug, it is crucial to prioritise safety by turning off the power. Working on live electrical circuits is extremely dangerous and can lead to serious injuries or even fatalities. Therefore, it is always recommended to shut off the power to the specific area of the house or circuit in question.
To ensure the power is off, locate your circuit breaker box and flip the breaker switch to the off position for the relevant circuit. Alternatively, you may need to pull out the fuse. If you're unsure which circuit powers the outlet, a simple test can be performed. Plug in a lamp or turn on a fan, and then flip the breakers or remove the fuses one by one until the lamp turns off or the fan stops, indicating that you've found the correct circuit.
After turning off the power, it is essential to double-check that the outlet is no longer live. The most reliable way to test this is by using a voltage tester. You can also try plugging in a lamp and turning it on to ensure that the power is indeed off. Remember, safety should always come first when working with electricity.
In some cases, you may encounter a situation where the outlet is still receiving power even after turning off the apparent circuit. This could be due to a deeper issue or a potential error in identifying the correct circuit. If this occurs, it is advisable to check the service panel and turn off another circuit that may be powering the outlet. Always test again after making any adjustments to ensure the power is completely off before proceeding with any replacement work.
Once you have confirmed that the power is off, you can proceed to the next steps of replacing the electrical wall plug, which may include removing the cover plate, unscrewing the outlet, and disconnecting the wires. However, always remember to prioritise safety and ensure the power is off before proceeding.
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Remove the old plug
Before you begin, ensure you are wearing the proper protective equipment, including closed-toe shoes, long pants, a long-sleeve shirt, insulated gloves, and safety glasses. Avoid wearing any loose jewelry or clothing. It is also important to note that you should strongly consider hiring a local electrician to replace your electrical wall plug unless you have prior electrical experience.
Now, to remove the old plug, start by unplugging the device from the outlet. If the plug is damaged but still plugged into an outlet, turn off the power at the breaker before unplugging. If your plug is polarized, mark the side with the wider prong with tape on the cord.
Using electrical scissors, wire cutters, or a pair of sharp shears, cut the plug off the end of the power cord. You don't need to slit the insulation or remove any material or wire at this stage. Simply ensure that the cord is smooth and undamaged all the way to the end where the plug goes. If there is damage to the cord close to the plug, trim those parts off as well.
Once the old plug has been cut off, open the new plug housing to fit it onto the cord. A Phillips-head screwdriver usually does the job, but you may need a flat-head one. Using a screwdriver, unscrew the plug cover or plug jacket.
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Check the plug type
Before you start replacing an electrical wall plug, it is important to check the type of plug you are dealing with. There are three major types of replacement plugs: self-connecting, terminal screw, and three-prong. Self-connecting plugs are usually standard two-prong plugs that are not polarized and are commonly found on appliances like lamps. These are the easiest plugs to replace as they simply snap on.
Polarized plugs, on the other hand, are safer than non-polarized plugs due to the potential for reversed polarity and an open circuit. If you have a vintage appliance with a fabric-covered power cord, it is recommended to replace the entire cord rather than just the plug. Asbestos was used as an insulator in appliances made before the 1980s, so cutting into a cloth cord could release asbestos fibers into the air.
When checking the plug type, look at the prongs and electrical information printed on the plug. Make sure to match the voltage rating and amperage of the wire with the new plug. Do not replace a three-prong plug with a two-prong plug or vice versa. If your plug is polarized, mark the side with the wider prong with tape before cutting it off.
Additionally, always remember to unplug the device or turn off the power at the breaker before working on any electrical repairs.
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Fix the new plug
Before fixing the new plug, ensure you have turned off the power for the circuit at the breaker box. Test with a voltage tester to confirm. If the tester shows current, you may have flipped the wrong breaker switch. Check the service panel and turn off another circuit that may be powering the outlet. Test again and proceed only if the tester shows no current.
Once the power is off, check that the outlet is no longer live. You can double-check by plugging in a lamp and turning the light on. If the lamp turns on, the outlet is still live, and you should stop immediately.
Now, you can fix the new plug. Ensure the plug matches the voltage rating and amperage of the wire. The number should be printed on the old and new plugs, so just make sure they match. Don’t replace a three-prong plug with a two-prong plug or vice versa. If you’re replacing a polarized plug, make sure the new plug is polarized too.
Using a screwdriver, open the new plug housing to fit it onto the cord. A Phillips-head screwdriver usually does the job, but you may need a flat-head one. Unscrew the plug cover or plug jacket.
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Test the new plug
Once you've fitted the new plug onto the cord, screw on the plug cover or plug jacket. Now you're ready to test the new plug.
Before testing the new plug, make sure the power is off. The surest way to test this is with a voltage tester, but you can also check by plugging in a lamp and seeing if it turns on.
Now, plug the device into an outlet. If the plug is damaged but still plugged into an outlet, turn off the power at the breaker before unplugging. If the device works, then the plug is functioning. If the device doesn't work, then the problem may be with the outlet. Try plugging the device into a different outlet. If the device works in a different outlet, then the first outlet is likely faulty.
If the new plug doesn't work in any outlet, then there may be an issue with the wiring. Check that the plug matches the voltage rating and amperage of the wire. The number should be printed on both the old and new plugs. Make sure you haven't replaced a three-prong plug with a two-prong plug or vice versa.
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