First: Reset Every GFCI in the House
GFCI outlets protect entire chains of downstream receptacles. If one GFCI trips—often in a bathroom, kitchen, or garage—every outlet fed through it goes dark. The breaker stays on because the breaker didn't trip; the GFCI did.
Walk through bathrooms, kitchen counters, laundry room, garage, and exterior outlets. Look for receptacles with TEST and RESET buttons. Press RESET on each one. You should hear a click. If an outlet won't reset, or immediately trips again, that GFCI may have failed or there's a ground fault on the circuit.
Check inside the dead outlet's box, too. Builders sometimes installed a GFCI inside the box (behind the faceplate) to protect downstream devices. Remove the faceplate screw and pull the receptacle forward—carefully, no tools near terminals. If you see TEST/RESET buttons, press RESET.
If this restores power, you've found the issue. If not, move to the next check.
Backstab Connections Loosen Over Time
Many outlets use push-in "backstab" terminals on the back—you strip a wire and shove it into a small hole. These connections rely on spring tension. Over years, heat cycling (outlets warm under load, cool when idle) causes the spring to lose grip. The wire backs out a millimeter. Power stops.
This is especially common on 15-amp circuits serving multiple outlets. The first outlet in the chain loses its backstab connection; everything downstream goes dead. The breaker never sees a fault—it just sees zero current draw—so it stays on.
Backstab failures cluster on older outlets (pre-2000s builds) and on circuits with high plug-in loads: window AC units, space heaters, power tools. Vibration from a nearby dryer or garage-door opener can shake connections loose, too.
Fixing backstabs means opening the outlet box, unwiring the receptacle, and re-landing wires under screw terminals—always done with the breaker off. That's licensed-electrician work. If you're handy and the breaker is off, you can look for a wire that's pulled partway out of a backstab hole. Do not touch live parts or rewire anything yourself unless you've been trained.
A Wire Nut Came Loose in a Junction Box
Electrical circuits daisy-chain through junction boxes and outlet boxes. Inside those boxes, multiple wires twist together under wire nuts (twist-on connectors). If a wire nut wasn't twisted tight, wasn't the right size, or was bumped during drywall work, it can work loose.
When the hot or neutral wire nut opens, everything downstream loses power. The breaker stays on—no short, no overload—just an open connection.
Junction boxes hide in attics, crawlspaces, behind access panels, and sometimes inside walls (code requires them to be accessible, but renovations bury them). Tracing a circuit to find the loose splice requires a non-contact voltage tester, a circuit map, and patience. This is part of diagnostic troubleshooting we do on service calls—we have the tools to map circuits and the license to open live boxes safely.
Do not open a junction box and start poking around unless the main breaker is off and you know what you're doing. A loose hot wire in a box is a shock and arc-flash hazard.
The Outlet Itself Failed
Receptacles wear out. Internal contacts lose spring tension after thousands of plug insertions. Plastic terminal screws crack. The brass contact blades oxidize. The receptacle simply stops conducting, even though wires are tight and the breaker is on.
This usually affects one outlet. If multiple outlets went dead at once, suspect an upstream issue (GFCI, wire nut, backstab). If just one duplex receptacle is dead—and the outlets before and after it still work—the receptacle probably failed.
Replacing a receptacle is straightforward if you know how to shut off the right breaker, verify it's dead with a tester, match wire colors to terminals (brass screw = hot/black, silver = neutral/white, green = ground), and torque screws correctly. Many homeowners swap outlets safely. Many also get hurt because they skipped a step or the circuit was mis-wired. We always recommend calling a licensed electrician for any work inside a box.
If you do replace it yourself, use a quality spec-grade receptacle (not the cheapest builder-grade), attach wires under screw terminals (not backstabs), and test with a plug-in outlet tester before putting the cover back on.
AFCI Nuisance Trips (Breaker Looks On, But Isn't)
Arc-fault circuit interrupters (AFCIs) are breakers with a TEST button and a small reset flag. They trip on dangerous arcing faults—frayed cords, loose connections sparking inside walls. The breaker handle moves to a middle "tripped" position, not fully OFF, so it looks like it's still on.
If your panel has AFCI breakers (required on bedroom and living-area circuits since the mid-2000s), push every breaker handle firmly to OFF, then back to ON. You may hear a click and see the flag reset. Power should return.
AFCI breakers also nuisance-trip on vacuum cleaners, treadmills, and cheap LED bulbs—the electronics inside create small arcs the breaker interprets as faults. Repeated nuisance trips mean either a real arcing fault (bad) or an oversensitive breaker (annoying). Both require an electrician to diagnose.
Never disable an AFCI by swapping in a standard breaker. AFCIs prevent house fires. If yours trips often, we trace the circuit, check connections, test appliances, and replace the breaker if it's defective.
Open Neutral (The Dangerous One)
An open neutral is the worst-case scenario. The neutral wire—white, carrying return current to the panel—breaks or comes loose somewhere upstream. Outlets go dead or deliver wild voltage swings (80V, 140V) that damage electronics and create shock hazards.
Open neutrals happen at wire nuts, at the panel neutral bus, at meter bases after storms, and at old aluminum branch-circuit connections (aluminum expands/contracts more than copper under load, working connections loose over time).
Signs of an open neutral: some outlets dead, others work but dim; lights flickering when you plug in a load on a different circuit; a faint hum from the panel; outlets that tingle when you touch the faceplate screw.
If you suspect an open neutral, shut off the main breaker and call an electrician immediately. Do not use any outlets on the affected circuit. Open neutrals can energize the neutral conductor to 120V, electrify metal boxes and faceplates, and cause fires at loose connections. This is not a DIY diagnosis.
We use a multimeter to measure voltage at the panel, at the first outlet, and at the dead outlet. If we see 120V hot-to-ground but 0V hot-to-neutral, we know the neutral is open. Then we trace backwards to find the break.
When to Call an Electrician (and What We Do)
Call a licensed electrician if:
- You've reset every GFCI and every breaker, and outlets are still dead.
- Outlets went dead after a storm, a power surge, or work done in the attic/walls.
- You see scorch marks, smell burning plastic, or feel warmth at an outlet or breaker.
- Outlets work intermittently—power comes and goes when you wiggle a plug or walk on the floor above.
- You're not comfortable opening outlet boxes or testing voltage yourself.
Our diagnostic process: We map the circuit with a tone-and-probe tracer to find every box on the run. We test voltage at the panel, at the first outlet, and at the dead outlet to isolate the fault. We open boxes (safely, with the circuit de-energized) to check wire nuts, backstabs, and terminal screws. We measure resistance on the neutral and ground paths. We identify the failure point, explain what happened, quote the repair up-front, and fix it correctly—usually same-visit.
Most dead-outlet calls are a loose connection or a failed GFCI. Repair times run 30–90 minutes. We carry common parts (receptacles, wire nuts, GFCI outlets, short pigtails) on the truck, so we rarely need a return trip.
For more complex issues—open neutrals in walls, backstabs scattered across ten outlets, aluminum branch rewiring—we'll walk you through options and costs before starting. You'll know the price before we touch a wire. See our full range of electrical services on our services page, and read more troubleshooting guides on the blog.