The cost to replace an electrical outlet starts at 92 45 112 per outlet but can vary significantly with site conditions and options.
The average cost to repair reversed polarity floor receptacle.
As discussed above these three wires must be connected to the proper terminals on the receptacle.
In other words for a gfci outlet to function properly and interupt when its intended to there needs to be a proper source of grounding at the main panel and at the receptacle where the gfic outlet is going to be installed.
Outlet is wired backwards conventional duplex electrical receptacles are connected to three electrical wires.
A brief definition of hot and neutral wires.
How to fix reverse polarity receptacles.
Turn the power off to the outlet by opening the breaker or pulling the fuse.
If you accidentally reverse these wires the device you plug in to the receptacle may work but it is unsafe and risks a short circuit shock or fire.
The easiest way to find out if a receptacle has reverse polarity is to buy a receptacle tester from your local hardware store.
The question was in regards to floor receptacles and here are two views on the them to keep in mind.
Reversed polarity creates a potential shock hazard but it s usually an easy repair.
Reversed polarity on an electrical outlet is dangerous.
A black hot wire a white neutral wire and a green ground wire.
A standard receptacle can be replaced with a gfci outlet if there is proper ground conducor at the receptacle box.
Check the outlet again to be sure it is dead.
If your readings are reversed your polarity is reversed.
See professionally prepared estimates for electrical outlet replacement work.
On a standard outlet which is technically called a duplex receptacle there are two wires that carry electricity.
Ok so you just purchased your new home and you think everything is great when all of a sudden the electrical inspector calls to let you know that he forgot to tell you earlier that your electrical outlets have reverse polarity.
Remove the outlet the hot wire should be the black wire probably is connected to the silver colored screw.
Get fair costs for your specific project requirements.
Even a simple light or floor lamp is less safe with polarity reversed.
Any floor receptacle within 18 inches of the wall counts the same as a wall outlet but it must be the proper kind of floor outlet and not a standard duplex receptacle.
Estimated repair replacement and upgrade costs.
How do you correct this if your polarity is reversed.
See typical tasks and time to replace an electrical outlet along with per unit costs and material requirements.