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Electrical Ground Fault (GFI) Maintenance

To help maintain the electrical safety of your home, it is important that your home maintenance program include the proper maintenance for your electrical ground fault interrupters (GFI).

Ground fault interrupters (GFI) and circuit breakers are required wherever water is near an electrical circuit such as in kitchens and bathrooms.  They will automatically trip and shut-off power if the outlet short circuits.

Shown below are the recommended routine maintenance tasks for your electrical ground fault interrupters (GFI).  

Learn to enjoy managing your home with our free Newsletter or our free Automatic Maintenance Reminders.  We can also show you the Recommended Maintenance Schedules for your entire home.

     

 

 
 

 

 

 Maintenance Task:  Test circuit breakers and ground fault interrupters

 
       
    How do you test circuit breakers and ground fault interrupters?  

 

 

The following is how to test circuit breakers and ground fault interrupters (GFI) to ensure they are providing the proper protection:

  • Circuit breakers are found the the metal electrical box typically found in a basement or closet (see the above picture on the right).  You can test circuit breakers by switching from the "on" to the "off" position, and back again.  If you have any questions about how to do this, then you should contact a professional.

  • Ground fault interrupters (GFI) outlets are typically found where you have water near electrical outlets, for example in kitchens and bathrooms.  You check the operation of all ground-fault circuit interrupter outlets by pushing the "test" button.  The "reset" button should pop out, indicating the receptacle is operating properly.  Press in the reset button when finished.

 
       
    Why is it important to test circuit breakers and ground fault interrupters?  

 

 

This task is important for safety reasons.  If operating properly, circuit breakers and ground fault interrupters (GFI) will automatically trip when an appliance creates a short circuit.  If they don't operate properly, a short circuit can potentially cause a fire.

Testing circuit breakers and ground fault interrupters (GFI) help to ensure that they will operate properly when needed.

 
       
    How often should you test circuit breakers and ground fault interrupters?  
    Perform annually (September).  

 

 

 

   
    How does Home-Wizard rate the costs and benefits for this task?  
    The cost of this task is very low.  It is estimated that this task should only take about 30 minutes to complete, depending on how many circuits and GFI outlets you have in your home.  No specialized tools are required.  
         
    The benefits of this task are relatively high.  Doing this task helps ensure the safe operation of your home's electrical system.  
       
    Overall Home-Wizard benefit-versus-cost rating (one 'hat' = low and four 'hats' = high)  

 

 

 

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QUESTIONS & ANSWERS from "Ask-the-Wizard":

QUESTION from "jefrimmer"

I have an exterior plug in my soffit area which is switched and is intended for plugging in my exterior Christmas lights. I plugged in one string and the GFI circuit "popped" on the other exterior plug located on my front porch a few feet away. Obviously the lights now won't work. I have checked the switched plug with a polarity tester and it states that all is correct. I have tired other appliances in the switched plug and everything causes the GFI to pop. Any ideas??

ANSWER:

jefrimmer:

As you may know, since the GFI is "popping" nearby, these plugs are most likely on the same circuit, and there is something shorting out the circuit. It could be the switch, it could be the plug, or something could be shorting the wires in this circuit inside your walls (a nail, mice chewing on the wires, etc.).

You want to be very careful with this. The GFI (ground fault interrupter) is there for a reason, to protect your house from short circuits, especially in areas where there could be water that could conduct electricity to a person, for example in bathrooms, kitchens, and exterior locations.

I would think you would want to call in a qualified electrician to inspect your plugs and wiring.

And in the meantime, if you can, to be safe you should consider turning off the breaker at your fusebox, if there is a separate breaker for this circuit.

Hope this is helpful.
Home-Wizard.com
____________________

QUESTION from "Donna"

Our GFI keeps popping when we run the dishwasher - but we've had it for 8 years and have not relocated any other items.  It won't pop if we run on a low energy cycle - but if we run it on normal it pops.

ANSWER:

Donna:

Regarding your GFI tripping off when you run your dishwasher on its normal energy cycle but not on the low energy cycle, it could be a couple of things happening:

1) as GFIs ("ground fault interrupters") get older over time, they sometimes begin to trip at lower power levels. So in other words, it may have been fine operating at let's say 20 amps for years, but now it trips at 18 amps as the GFI has worn out.

2) Your dishwasher may be exeriencing a power surge when the heater for your dishwasher's normal power kicks on, and this is what is tripping your GFI.

Either way, you probably want a qualified electrician to test your GFI and dishwasher.

Hope this is helpful.
Home-Wizard.com
____________________

QUESTION from "joel.schacter"

Our GFI keeps popping when we run the dishwasher - but we've had it for 8 years and have not relocated any other items.  It won't pop if we run on a low energy cycle - but if we run it on normal it pops.

ANSWER:

Dear joel.schacter:

As you may know, since the GFI is "popping" nearby, these plugs are most likely on the same circuit, and there is something shorting out the circuit. It could be the switch, it could be the plug, or something could be shorting the wires in this circuit inside your walls (a nail, mice chewing on the wires, etc.).

You want to be very careful with this. The GFI (ground fault interrupter) is there for a reason, to protect your house from short circuits, especially in areas where there could be water that could conduct electricity to a person, for example in bathrooms, kitchens, and exterior locations.

I would think you would want to call in a qualified electrician to inspect your plugs and wiring.

And in the meantime, if you can, to be safe you should consider turning off the breaker at your fusebox, if there is a separate breaker for this circuit.

Hope this is helpful.
Home-Wizard.com
____________________

QUESTION from Vic on 4/3/2008:


If a multitester switch is set to the 15-volt position and the meter pointer indicates a reading of 82 volts on the 150 VOLTS scale, what is the actual voltage being measured?

ANSWER FROM HOME-WIZARD.COM ON 4/3/2008

Dear Vic:

Here is a link to a webpage that describes how to use a multitester, and what the different scales are for:

http://www.do-it-yourself-washing-machine-and-dryer-repair-help.com/how-to-use-a-multitester.html

Hope this is helpful.
Home-Wizard.com
____________________

Maintenance Library index
Air Conditioning (central) Foundation Program Thermostats
Air Conditioning (room unit) Freezer Radiators
Attic Furnace Refrigerator
Automatic Lawn Sprinklers Furniture (Fine Wood) Roof
Barbeque Grill Furniture (Leather) Roof Gutters
Baseboard Heating System Furniture (Upholstered) Safety Tips
Basement Garage Security System
Brick Siding Garbage Disposal Septic System
Carpets Garbage Rates Showers & Tubs
Ceiling Fan Gas Fireplace Smoke Detectors
Charity Goods Donation Heat Pump Storm Windows
Clothes Dryer Holiday Lighting Stove
CO Detectors Hot Tub Spa Sump Pump
Daylight Savings Time Humidifier Swimming Pool
Decking Insurance Rates Tax Assessment
Dehumidifier Large Trees Nearby Telephone Service Rates
Dishwasher Lawn Trash Compactor
Drapes and Blinds Locks & Hinges Utility Meter Verification
Driveway Marble Floors Vinyl Siding
Electric Air Cleaner Mattresses Washing Machine
Electric Shaver Medicines (expired) Water Beds
Electrical Ground Faults Microwave Oven Water Heater
Emergency Supplies Mortgage Rates Weatherstripping
Energy Audits Outside Lighting Well Water
Energy Rates Outside Water Faucets Windows
Energy Savings Tips Oven Window Screens
Exhaust Fans Patio Furniture Wood Siding
Fire Extinguishers Personal Computer Wood Stove
Fireplace Pest Control Wooden Floors
Forced Air Heating System Plumbing  

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