It is a common and puzzling situation: an outlet suddenly stops working, but when you check the breaker panel, nothing is tripped. The good news is that there are a handful of common causes, and some are simple to resolve. The most frequent culprit is a tripped GFCI somewhere else on the circuit, followed by loose or failed connections. Knowing what to check helps you narrow it down.
Here is what causes an outlet to stop working when the breaker is fine.
A tripped GFCI upstream
This is the most common and easily overlooked cause. A GFCI outlet protects not only itself but often other standard outlets downstream on the same circuit. If a GFCI somewhere on the circuit has tripped, the outlets it protects will lose power, even though no breaker is tripped.
Check GFCI outlets in nearby kitchens, bathrooms, garages, and outdoors, and press reset on any that have tripped. This often restores power to a dead outlet.
A loose or failed connection
If no GFCI is the cause, a loose or failed connection is a frequent reason an outlet goes dead:
- A wire that has come loose at the outlet’s terminal
- A failed backstab connection, where the wire was pushed into the back of the outlet rather than secured to the screw
- A loose connection at another outlet upstream on the same circuit, which can cut power to everything after it
These connection problems stop the flow of power and can also create heat, so they are a safety concern as well as an inconvenience.
A worn-out or failed outlet
Outlets wear out. An old or damaged outlet can simply fail internally, losing power even though the wiring to it is fine. Signs of a failing outlet include one that is loose, discolored, warm, or no longer holds a plug. A failed outlet needs to be replaced.
A switched outlet
Some outlets, or half of an outlet, are controlled by a wall switch. If an outlet suddenly seems dead, check whether a nearby switch controls it and whether that switch is off. This is a simple explanation that is easy to miss.
Other wiring issues
Less common causes include an open neutral or other wiring fault on the circuit, which can interrupt power without tripping the breaker. These are harder to diagnose and point to a wiring problem that an electrician should investigate.
What to check and when to call an electrician
A reasonable order to check:
- Look for a tripped GFCI on the circuit and press reset.
- Check whether a wall switch controls the outlet.
- Note any signs of a failing outlet, like warmth, discoloration, or looseness.
If resetting GFCIs and checking switches does not solve it, or if you notice warmth, a burning smell, or buzzing, call a licensed electrician. Loose or failed connections and wiring faults are a safety concern and should be diagnosed and repaired professionally. A burning smell, smoke, or sparks is an emergency.
When an outlet stops working but the breaker is fine, the most common cause is a tripped GFCI elsewhere on the circuit, followed by loose or failed connections, a worn-out outlet, or a switched outlet. Start by resetting GFCIs and checking any controlling switch. If that does not solve it, or if there are signs of heat or arcing, a licensed electrician should diagnose the connection or wiring problem, since these are safety concerns.
Stella Electric diagnoses and repairs dead outlets for homeowners across the Baltimore area and throughout Maryland, with flat-rate pricing and no overtime charges. If an outlet is out and the breaker is fine, we can find the cause. Financing is available on qualifying projects.
