Guide to GFCI Circuit Wiring for Outlets
Electrical Question: I am having a problem wiring GFCI outlets.
- I have just installed two GFCI outlets I followed the line in black and white, and then the line out black and white connections to the first outlet.
- I tested the Line In and I have power at the wires, the outlet tests and shows connected with a light.
- There is no line out power and when I go to the master bath and test the lines and I do not have power.
- All these outlets are on a GFCI breaker in the panel.
- I cannot figure out why the outlet with live power in and showing connected will not work at the plugs.
Any thoughts, and or do you need more info.
Thanks, Jesse.
This electrical question came from: Jesse, from Bellevue, Washington.
Dave’s Reply:
Thanks for your electric wiring question Jesse.
How to Wire Two GFCI Outlets
Application: GFCI Wiring for an Outlet Circuit.
Skill Level: Beginner to Intermediate – Best if wired by a Licensed Electrical Contractor.
Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and the number of GFI outlets that will be added.
Precaution: Identify the bathroom GFI outlet circuit, turn it OFF and Tag it with a Note before working with the wiring.
Notice: Installing additional GFCI Outlet Wiring should be done according to local and national electrical GFCI Codes with a permit and be inspected.
Typical Wiring Methods for Two GFCI Outlets
- GFCI Outlets and Circuit Breakers
- A GFCI circuit may be protected by either a GFCI Circuit Breaker or a GFCI Outlet, but not both.
- Having two sources of GFI protection can create nuisance trips of the devices, therefore I would select one or the other.
- Bathroom GFCI Outlet
- When installing GFCI protection for bathroom outlets it is best to install a GFCI Outlet instead of a GFCI circuit breaker because it is not very convenient to leave the bathroom and go to the panel to reset the GFI breaker.
- GFCI Outlet Circuit for a Bathroom
- Where there are more than one bathrooms on the same required 20 amp circuit, then it is best to have a GFCI outlet in each bathroom, so that if one trips off it will only affect that bathroom and not the others.
- GFCI Wiring Diagrams
- The links below will show you how to wire GFCI outlets in all of these scenarios.
More about Wiring GFCI Outlets
Wiring GFI Outlets
-
GFCI and GFI Wiring Diagrams
- The features and benefits of GFCI outlets and receptacles will give you a clear understanding of the importance why these safety devices are required by code to help protect you and your family against accidental electrical shock hazards.
- GFCI Wiring
- This list of articles will help you learn about the features and benefits provided by GFI and GFCI Receptacles and how they are wired.
Basic House Wiring Circuits
-
House Wiring Circuits and Circuit Breakers
- This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Electrical Circuit Breakers
-
Home Electrical Circuit Breakers
- A guide to home electrical circuit breakers and how they work to protect your electrical wiring.
- When properly installed, your home electrical wiring is protected by a circuit protection device.
Guide to GFCI Circuit Wiring for Outlets
Electrical Question: I am having a problem wiring GFCI outlets.
- I have just installed two GFCI outlets I followed the line in black and white, and then the line out black and white connections to the first outlet.
- I tested the Line In and I have power at the wires, the outlet tests and shows connected with a light.
- There is no line out power and when I go to the master bath and test the lines and I do not have power.
- All these outlets are on a GFCI breaker in the panel.
- I cannot figure out why the outlet with live power in and showing connected will not work at the plugs.
Any thoughts, and or do you need more info.
Thanks, Jesse.
This electrical question came from: Jesse, from Bellevue, Washington.
Dave’s Reply:
Thanks for your electric wiring question Jesse.
How to Wire Two GFCI Outlets
Application: GFCI Wiring for an Outlet Circuit.
Skill Level: Beginner to Intermediate – Best if wired by a Licensed Electrical Contractor.
Tools Required: Basic Electricians Pouch Hand Tools and a Voltage Tester.
Estimated Time: Depends on personal level experience, ability to work with tools and the number of GFI outlets that will be added.
Precaution: Identify the bathroom GFI outlet circuit, turn it OFF and Tag it with a Note before working with the wiring.
Notice: Installing additional GFCI Outlet Wiring should be done according to local and national electrical GFCI Codes with a permit and be inspected.
Typical Wiring Methods for Two GFCI Outlets
- GFCI Outlets and Circuit Breakers
- A GFCI circuit may be protected by either a GFCI Circuit Breaker or a GFCI Outlet, but not both.
- Having two sources of GFI protection can create nuisance trips of the devices, therefore I would select one or the other.
- Bathroom GFCI Outlet
- When installing GFCI protection for bathroom outlets it is best to install a GFCI Outlet instead of a GFCI circuit breaker because it is not very convenient to leave the bathroom and go to the panel to reset the GFI breaker.
- GFCI Outlet Circuit for a Bathroom
- Where there are more than one bathrooms on the same required 20 amp circuit, then it is best to have a GFCI outlet in each bathroom, so that if one trips off it will only affect that bathroom and not the others.
- GFCI Wiring Diagrams
- The links below will show you how to wire GFCI outlets in all of these scenarios.
More about Wiring GFCI Outlets
Wiring GFI Outlets
-
GFCI and GFI Wiring Diagrams
- The features and benefits of GFCI outlets and receptacles will give you a clear understanding of the importance why these safety devices are required by code to help protect you and your family against accidental electrical shock hazards.
- GFCI Wiring
- This list of articles will help you learn about the features and benefits provided by GFI and GFCI Receptacles and how they are wired.
Basic House Wiring Circuits
-
House Wiring Circuits and Circuit Breakers
- This article looks at common 120 volt and 240 volt house wiring circuits and the circuit breakers that are installed identifying the types and amperage sizes used in most homes.
Electrical Circuit Breakers
-
Home Electrical Circuit Breakers
- A guide to home electrical circuit breakers and how they work to protect your electrical wiring.
- When properly installed, your home electrical wiring is protected by a circuit protection device.
Bathroom Light and Outlet Problem
Electrical Question #1: My bathroom lights went out and now none of the lights or electrical outlets in the master bath or master bedroom are working, what could be the problem?
- Bathroom Electrical Problem
I went to my bathroom and turned on the lights that are above the mirror (no exhaust fan) The lights went out and now none of the lights or electrical outlets in the master bath or master bedroom, which is attached to master bath, are working.
- Checked the Circuit Breakers
I looked at the breakers to see if any of them were tripped and they weren’t. I turned them all of anyway and turned them back on.
- Restored the Power
Everything came back on in the bedroom and bathroom but when I turned the lights back on in the bathroom it did the same thing.
- Lost Power
Now nothing will come on.
This electrical wiring question came from: Heather, a Homeowner in Indiana.
Related Question #2:
The bathroom GFCI outlet has no power but the lights work, what is the problem?
My wife used a hair dryer. The power went out and when we reset the breaker most everything came back on. The bathroom on second floor the GFCI outlet had no power but the lights work. The upstairs bathroom has no power in the GFCI outlet or lights. I reset a third GFCI in the basement, but no change. The breaker is in the basement. I replaced both GFCI outlets on 2nd and 3rd floor with no results. An outlet in the master bedroom also is not working although on the other side of the room all outlets have power. I can’t seem to figure it out. The 2nd floor GFCI has two wires and ground. The 3rd floor has four wires and a ground.
This electrical wiring question came from Thomas in Maryland.
Dave’s Reply:
Thank you for your electrical wiring questions.
How to Fix a Bathroom Light and Outlet Problem
Application: How to Repair a Bathroom Light Circuit Problem.
Skill Level: Intermediate to Advanced. This electrical wiring project is best performed by a Licensed Electrical Contractor or Certified Electrician.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester or Continuity Tester
Estimated Time: Depends on experience and level of problem solving skills.
Precaution: Testing live wires is dangerous and should be done by an experienced individual only. Testing using a continuity tester should only be made after the circuit has been identified and turned OFF and Tagged.
Troubleshoot and Repair a Bathroom Light Circuit Problem
- Bathroom Light Power Source
It is possible that the vanity light power source comes from a GFCI outlet that is located in one of the bathrooms.
- Inspect the Light Switch and Fixture
Make sure the light switch and fixture do not have am accumulation of steam or moisture which can cause the GFCI outlet to trip off.
- Check the Light Bulbs and the Fixture
Replace any light bulbs that may be faulty. Up to this point, if everything looks OK then the wiring of the light fixture and the circuit splice connections will need to be checked for a bad or deteriorated connection and then repairs must be performed as needed..
- Reset the GFI Outlet
After the checks and repairs have been made turn off the light switch and reset the GFI Outlet by pressing in the RESET Button.
- Further Electrical Wiring Inspections
If the preceding checks did not reveal any problems then the circuit that supplies power to the bathroom lights will need to be identified and tested for the cause of the fault. All the affected lights that are controlled by the light switch should be opened so the electrical wiring may be inspected for burnt wiring and faulty connections.
- Replace the GFCI Outlet
If the problem seems to be associated with the GFCI Outlet then the GFCI outlet may be faulty and need to be replaced.
More about Wiring for a Bathroom Light Circuit
Bathroom Electrical Wiring
Electrical outlet wiring
Wiring Electrical Outlet for the Home
Home electrical wiring includes 110 volt outlets and 220 volt outlets and receptacles which are common place in every home. See how wiring electrical outlets for the home are done.
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Electrical Wiring Protection using Circuit Breakers
A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.
For more information about Troubleshooting Electrical Wiring
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Bathroom Light and Outlet Problem
Electrical Question #1: My bathroom lights went out and now none of the lights or electrical outlets in the master bath or master bedroom are working, what could be the problem?
- Bathroom Electrical Problem
I went to my bathroom and turned on the lights that are above the mirror (no exhaust fan) The lights went out and now none of the lights or electrical outlets in the master bath or master bedroom, which is attached to master bath, are working.
- Checked the Circuit Breakers
I looked at the breakers to see if any of them were tripped and they weren’t. I turned them all of anyway and turned them back on.
- Restored the Power
Everything came back on in the bedroom and bathroom but when I turned the lights back on in the bathroom it did the same thing.
- Lost Power
Now nothing will come on.
This electrical wiring question came from: Heather, a Homeowner in Indiana.
Related Question #2:
The bathroom GFCI outlet has no power but the lights work, what is the problem?
My wife used a hair dryer. The power went out and when we reset the breaker most everything came back on. The bathroom on second floor the GFCI outlet had no power but the lights work. The upstairs bathroom has no power in the GFCI outlet or lights. I reset a third GFCI in the basement, but no change. The breaker is in the basement. I replaced both GFCI outlets on 2nd and 3rd floor with no results. An outlet in the master bedroom also is not working although on the other side of the room all outlets have power. I can’t seem to figure it out. The 2nd floor GFCI has two wires and ground. The 3rd floor has four wires and a ground.
This electrical wiring question came from Thomas in Maryland.
Dave’s Reply:
Thank you for your electrical wiring questions.
How to Fix a Bathroom Light and Outlet Problem
Application: How to Repair a Bathroom Light Circuit Problem.
Skill Level: Intermediate to Advanced. This electrical wiring project is best performed by a Licensed Electrical Contractor or Certified Electrician.
Tools Required: Basic Electricians Pouch Hand Tools and Voltage Tester or Continuity Tester
Estimated Time: Depends on experience and level of problem solving skills.
Precaution: Testing live wires is dangerous and should be done by an experienced individual only. Testing using a continuity tester should only be made after the circuit has been identified and turned OFF and Tagged.
Troubleshoot and Repair a Bathroom Light Circuit Problem
- Bathroom Light Power Source
It is possible that the vanity light power source comes from a GFCI outlet that is located in one of the bathrooms.
- Inspect the Light Switch and Fixture
Make sure the light switch and fixture do not have am accumulation of steam or moisture which can cause the GFCI outlet to trip off.
- Check the Light Bulbs and the Fixture
Replace any light bulbs that may be faulty. Up to this point, if everything looks OK then the wiring of the light fixture and the circuit splice connections will need to be checked for a bad or deteriorated connection and then repairs must be performed as needed..
- Reset the GFI Outlet
After the checks and repairs have been made turn off the light switch and reset the GFI Outlet by pressing in the RESET Button.
- Further Electrical Wiring Inspections
If the preceding checks did not reveal any problems then the circuit that supplies power to the bathroom lights will need to be identified and tested for the cause of the fault. All the affected lights that are controlled by the light switch should be opened so the electrical wiring may be inspected for burnt wiring and faulty connections.
- Replace the GFCI Outlet
If the problem seems to be associated with the GFCI Outlet then the GFCI outlet may be faulty and need to be replaced.
More about Wiring for a Bathroom Light Circuit
Bathroom Electrical Wiring
Electrical outlet wiring
Wiring Electrical Outlet for the Home
Home electrical wiring includes 110 volt outlets and 220 volt outlets and receptacles which are common place in every home. See how wiring electrical outlets for the home are done.
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Electrical Wiring Protection using Circuit Breakers
A guide to home electrical circuit breakers and how they work to protect your electrical wiring. When properly installed, your home electrical wiring is protected by a circuit protection device.
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Bathroom GFI Outlet
Electrical Question: I bought a home that is 30 years old. In one bathroom the light and bath exhaust fan and GFCI outlet switch has no power.
- All the fuse are good and working.
- The home has light but only in the bathroom and the bathroom side outlet.
- My security alarm system connects to the bathroom side outlet and they do not work.
- I try to unplug it and and then reset it again but no luck, and also I change the GFCI outlet also but no luck.
Please help me!
This electrical wiring question came from: Alishahzad, a Homeowner from Lodi, California.
Additional Comments: Nice website, and helps me get the job done fast!
Dave’s Reply:
Thanks for your electrical wiring question Alishahzad.
How to Repair a Bathroom GFI Outlet
Preparation
Skill Level: Intermediate to Advanced.
Tools Required: Basic Electricians Pouch Hand Tools a Voltage Tester or Plug-In Circuit Analyzer.
Estimated Time: Depends on personal level experience, ability to work with tools and the extent of the GFCI electrical repairs.
Precaution: Identify the bathroom outlet circuit, turn it OFF and Tag it with a Note before working with the wiring.
Lost Power to a Bathroom GFCI Outlet
- Wiring and Testing a Bathroom GFCI Outlet
The first thing I would have you check would be to make sure that the Bathroom GFCI Outlet has been Tested and the Reset. This is often overlooked and may in fact be the problem.
- Troubleshooting Bathroom Electrical Circuit
If it is found that the GFCI will not Test or Reset, then the GFCI Outlet may not be wired correctly. If it is found that the GFCI Outlet is wired correctly then the bathroom circuit will need to be tested at several locations to determine the cause of lost power. You have found that the circuit breaker arrears to be functioning normally, however further tests will need to be performed.
More about Wiring Outlets
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The features and benefits of GFCI outlets and receptacles will give you a clear understanding of the importance why these safety devices are required by code to help protect you and your family against accidental electrical shock hazards.
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This list of articles will help you learn about the features and benefits provided by GFI and GFCI Receptacles and how they are wired.
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Fully Explained Photos and Wiring Diagrams for Bathroom Electrical Wiring with Code Requirements for most new or remodel projects.
Why Your Home Lost Power
How to Identify Lost Power
Licensed Electrician Reveals the Secrets of Successful Electrical Troubleshooting Methods used to solve the majority of the home electrical problems and wiring failures encountered.
Bathroom GFI Outlet
Electrical Question: I bought a home that is 30 years old. In one bathroom the light and bath exhaust fan and GFCI outlet switch has no power.
- All the fuse are good and working.
- The home has light but only in the bathroom and the bathroom side outlet.
- My security alarm system connects to the bathroom side outlet and they do not work.
- I try to unplug it and and then reset it again but no luck, and also I change the GFCI outlet also but no luck.
Please help me!
This electrical wiring question came from: Alishahzad, a Homeowner from Lodi, California.
Additional Comments: Nice website, and helps me get the job done fast!
Dave’s Reply:
Thanks for your electrical wiring question Alishahzad.
How to Repair a Bathroom GFI Outlet
Preparation
Skill Level: Intermediate to Advanced.
Tools Required: Basic Electricians Pouch Hand Tools a Voltage Tester or Plug-In Circuit Analyzer.
Estimated Time: Depends on personal level experience, ability to work with tools and the extent of the GFCI electrical repairs.
Precaution: Identify the bathroom outlet circuit, turn it OFF and Tag it with a Note before working with the wiring.
Lost Power to a Bathroom GFCI Outlet
- Wiring and Testing a Bathroom GFCI Outlet
The first thing I would have you check would be to make sure that the Bathroom GFCI Outlet has been Tested and the Reset. This is often overlooked and may in fact be the problem.
- Troubleshooting Bathroom Electrical Circuit
If it is found that the GFCI will not Test or Reset, then the GFCI Outlet may not be wired correctly. If it is found that the GFCI Outlet is wired correctly then the bathroom circuit will need to be tested at several locations to determine the cause of lost power. You have found that the circuit breaker arrears to be functioning normally, however further tests will need to be performed.
More about Wiring Outlets
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The features and benefits of GFCI outlets and receptacles will give you a clear understanding of the importance why these safety devices are required by code to help protect you and your family against accidental electrical shock hazards.
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This list of articles will help you learn about the features and benefits provided by GFI and GFCI Receptacles and how they are wired.
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Bathroom GFI Outlet Wiring with a Light Switch
[ad#block]Electrical Question: How do I wire a GFI outlet and switch in my bathroom?
I’m trying to wire a GFI outlet in my bathroom then install a piggy back or double switch for two light switches with no success. I have power to the GFI outlet and power to the first switch but the light will not work. What am I doing wrong?
This electrical question came from: Bob, a Homeowner from Woodbine, Georgia.
Dave’s Reply:
Thanks for your electrical question Bob.
Wiring a Bathroom GFI Outlet with a Light Switch
- Check to make sure that the white neutral wires are connected properly.
- Understand that if the GFI outlet will be protecting the light fixtures then the white neutral wire for the light fixtures must be wired through the GFI outlet the same as the black or power wire.
- If the light fixtures will not be protected by the GFI outlet then the black power for the light fixtures is spliced to the power wire that connects to the LINE side of the GFI outlet.
- The white neutral wire for the light fixtures is connected to the white neutral wires that connects to the LINE side of the GFI outlet.
More about Wiring Electrical Outlets
Electric outlet wiring
Wiring Electrical Outlet for the Home
- Home electrical wiring includes 110 volt outlets and 220 volt outlets and receptacles which are common place in every home.
- See how wiring electrical outlets for the home is installed.
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Wiring a Light Switch – Wiring Diagrams
Fully explained pictures and wiring diagrams about wiring light switches describing the most common switches starting with photo wiring diagram.
Bathroom GFI Outlet Wiring with a Light Switch
[ad#block]Electrical Question: How do I wire a GFI outlet and switch in my bathroom?
I’m trying to wire a GFI outlet in my bathroom then install a piggy back or double switch for two light switches with no success. I have power to the GFI outlet and power to the first switch but the light will not work. What am I doing wrong?
This electrical question came from: Bob, a Homeowner from Woodbine, Georgia.
Dave’s Reply:
Thanks for your electrical question Bob.
Wiring a Bathroom GFI Outlet with a Light Switch
- Check to make sure that the white neutral wires are connected properly.
- Understand that if the GFI outlet will be protecting the light fixtures then the white neutral wire for the light fixtures must be wired through the GFI outlet the same as the black or power wire.
- If the light fixtures will not be protected by the GFI outlet then the black power for the light fixtures is spliced to the power wire that connects to the LINE side of the GFI outlet.
- The white neutral wire for the light fixtures is connected to the white neutral wires that connects to the LINE side of the GFI outlet.
More about Wiring Electrical Outlets
Electric outlet wiring
Wiring Electrical Outlet for the Home
- Home electrical wiring includes 110 volt outlets and 220 volt outlets and receptacles which are common place in every home.
- See how wiring electrical outlets for the home is installed.
GFCI Outlet Wiring
Wiring Diagrams for GFI Outlets
The features and benefits of GFCI outlets and receptacles will give you a clear understanding of the importance why these safety devices are required by electrical code to help protect you and your family against accidental electrical shock hazards.
For more information about Light Switch Wiring
Light Switch Wiring
Wiring a Light Switch – Wiring Diagrams
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