How To Look At A House

McGarry and Madsen's home inspection blog for buyers of  

site-built, mobile/manufactured and modular homes


Saturday, October 20, 2018

Here’s links to a collection of our blog posts about "AFCI, CAFCI, DFCI, and GFCI RECEPTACLES AND CIRCUIT BREAKERS":

What causes an arc fault?

Does a septic pump or sump pump require a GFCI-receptacle?

 • What is the difference between what trips a GFCI (ground fault) receptacle and a circuit breaker?

Are Ground Fault Circuit Interrupters (GFCIs) really necessary and worth the trouble? 

What is the code requirement for GFCI protection for receptacles near a wet bar sink?

When was GFCI-protection for kitchen dishwasher receptacle outlet first required? 

Will a GFCI receptacle that is not grounded still function properly?

When did arc fault circuit interrupter (AFCI) breakers first become required?

Does a washing machine receptacle outlet require GFCI protection?

My spa tub stopped working. What's wrong?  

How do I identify a combination AFCI (CAFCI) circuit breaker? 

What does "listed and labeled" mean for an electrical component? 

What electrical hazards does a Ground Fault Circuit Interrupter (GFCI) NOT protect against?  

What is the difference between GFCI and AFCI circuit breakers? 

Where are GFCI receptacle outlets required?

When were GFCI receptacle outlets first required?

What happens when you press the "TEST" button on a circuit breaker in an electric panel?

What is a Dual Function Circuit Interrupter (DFCI)? 

What is the difference between a Combination Arc Fault Circuit Interrupter (CAFCI) and an Arc Fault Circuit Interrupter (AFCI) circuit breaker?   

Why is there a GFCI breaker in the electric panel for the bathroom shower light and exhaust fan?

What is the switch on the wall with two pushbuttons? 

How is it possible to provide both GFCI (Ground Fault Circuit Interrupter) and CAFCI (Combination Arc Fault Circuit Interrupter) protection for kitchen and laundry circuits?

My bathroom electric receptacle/outlet is dead and there are no tripped breakers in the electric panel. What's wrong?   

My GFCI reset button is hard to push and won't reset. What's wrong?

Why do some breakers in my electric panel have a "TEST" button on them?

• Are arc fault circuit interrupter (AFCI) breakers required in mobile/manufactured homes? 

When were GFCI receptacle outlets first required in the garage?

When were GFCI receptacle outlets first required in bathrooms?

 When were GFCI receptacle outlets first required in the kitchen? 

When were GFCI receptacle outlets first required near bathtubs and showers?

• When were GFCI receptacle outlets first required in balconies, decks, and porches? 

When were GFCI receptacle outlets first required in a laundry room?

When were exterior (outdoor) receptacle outlets first required to be GFCI?

• When  were receptacle outlets near a pool first required to be GFCI? 

When were receptacle outlets in the crawlspace under a home first required to be GFCI?

When was a kitchen refrigerator receptacle outlet first required to be GFCI-protected?

 A receptacle outlet is dead and I think I tripped a GFCI, but can't locate it. Where do I find the GFCI reset?

• Why type of circuit breaker has a red test button? 

When are the "GFCI PROTECTED" and "NO EQUIPMENT GROUND" stickers required on receptacle outlets?

• Are dining room, breakfast room, and pantry receptacles required to be GFCI protected? 

• Is a ceiling receptacle outlet for a garage door opener required to be GFCI protected? 

What is a "dead front GFCI" or "blank face GFCI”?

Does a garage door opener require GFCI protection by code? 

What is the average life expectancy of an AFCI or CAFCI circuit breaker?

• What is the average life expectancy of a GFCI circuit breaker? 

When did AFCI protection first become required for most rooms in a house?

• When did AFCI protection first become required for kitchens and laundry rooms? 

• Do I need a GFCI receptacle outlet if I have a GFCI circuit breaker in the electrical panel? 

• Does one GFCI receptacle outlet protect the whole circuit? 

• What is the difference between GFCI and GFI for receptacles and circuit breakers? 

• Is a receptacle outlet in a cabinet under a sink required to be GFCI protected? 

• How do I provide GFCI protection for a receptacle outlet? 

• Where is AFCI required for outlets in a house? 

What is a combination arc fault circuit interrupter (CAFCI)? 

Is a refrigerator receptacle outlet required to be GFCI-protected? 

• Does every receptacle outlet in a kitchen have to be GFCI?

• Does a bathroom exhaust fan need to be GFCI protected by code? 

Does a shower light need to be GFCI protected by code? 

• Can I put a GFCI receptacle at the middle or end of a circuit? 

• How do you test for GFCI protection at an ungrounded receptacle outlet? 

• Do floor receptacle outlets need to be GFCI? 

• Is it legal to install a three-prong outlet without a ground?

Will a GFCI receptacle outlet trip if you overload the circuit? 

• Are replacement electrical panels required to have AFCI breakers? 

• Why are there no neutral pigtails at the AFCI and GFCI breakers in the panel? 

• Why is there a purple test button on the circuit breaker? 

• Does a receptacle outlet that is not readily accessible still need GFCI protection? 

• What is the breaker with a blue test button? 

• I replaced a dead GFCI and  new one doesn’t work. What’s wrong? 

• Will a GFCI tester work on a receptacle outlet with no ground on a 2-wire circuit? 

• How do I test an ungrounded receptacle for GFCI protection on a 2-wire circuit? 

• Does a GFCI trip if you overload the circuit? 

• Why are AFCI circuit breakers warm even when no power is being drawn? 

• Does a kitchen garbage disposal require GFCI protection? 

• What is the standard height for a refrigerator receptacle outlet? 

• Do I need GFCI for barn receptacle outlets? 

What is GFCI?

Water Heaters

Water Heater Age

"What Are The

Signs Of..."

Septic Tank Systems

Structure and Rooms

Plumbing Pipes

Termites, Wood Rot

& Pests



When It First

Became Code

"Should I Buy A..."

Park Model Homes


Shingle Roofs




Wind Mitigation

Roof and Attic

"Does A Home


Pool and Spa

"What Is The Difference Between..."




Concrete and

Concrete Block

Metal Roofs


Modular Homes

Rain Gutters

Mold, Lead & Other Contaminants


Older and

Historic Houses

Crawl Spaces

Mobile-Manufactured Homes

Building Permits

Life Expectancy

Clay Soil





Exterior Walls

& Structures


Common Problems

HUD-Code for

Mobile Homes

Garages and Carports

Flat (Low Slope) Roofs

Electrical Panels

Sprinkler Systems

Electrical Receptacle Outlets

4-Point Inspections

Hurricane Resistance

Frequently Asked Questions (FAQ)

Home Inspection

Heating and Air Conditioning

Building Codes

Fireplaces and Chimneys

Inspector Licensing

& Standards

Energy Efficiency

Washers and Dryers



Doors and Windows



Electrical Wiring

Click Below  

for Links

to Collections

of Blog Posts

by Subject

Plumbing Drains

and Traps


Smoke & CO Alarms

Aging in Place

Top 5 results given instantly.

Click on magnifying glass

for all search results.






Air Conditioner & Furnace Age/Size


Electrical Switches





Water Intrusion

Electrical - Old

and Obsolete


Foundation Certifications

Tiny Houses

About McGarry and Madsen



Buying a home in North/Central Florida? Check our price for a  team inspection by two FL-licensed contractors and inspectors. Over 8,500 inspections completed in 20+ years. In a hurry? We will get it done for you.

Moisture Problems

Crawl Spaces