How would you approach troubleshooting a circuit in which a receptacle is dead but other devices on the same circuit operate?

• A. Replace the receptacle immediately.
• B. Check upstream breaker, verify continuity of the feed, inspect for loose connections, and test the receptacle and wiring for faults.
• C. Ignore and continue using other devices on the circuit.
• D. Check only the receptacle's grounding.

Answer: (B)

When a receptacle is dead while other devices on the same circuit work, the issue is usually an open path somewhere on the feed rather than a bad receptacle itself. The proper approach is to trace the power from the source and verify a continuous, correctly wired path to the outlet.

First, check the upstream breaker to confirm the circuit is actually supplying power. A breaker that has tripped or won’t reset would cut power to the entire run, including that receptacle. If the breaker is on, move to the next step: verify continuity of the feed from the panel to the receptacle. This means looking for a complete electrical path for both hot and neutral conductors and checking for any damaged or nicked wiring, broken conductors, or loose connections along the way.

Next, inspect the receptacle box for loose or disconnected conductors, and check the receptacle terminals for tightness and proper connections. A loose screw or a loose splice can easily create an open circuit at that outlet while leaving others on the same wire still functioning.

With power safely off, test the receptacle and its wiring to confirm faults. Use a voltage tester or multimeter to verify that voltage is present at the outlet when power is restored, confirm proper grounding, and check for correct polarity. Don’t overlook the possibility of a GFCI or AFCI device upstream that could have tripped and cut power to downstream outlets even if the main breaker is on; reset those devices if found.

If power is present but the receptacle still shows no continuity or no voltage, you may have a localized fault at the receptacle itself or an upstream connection that needs repair. This systematic check—from source to outlet—helps identify whether the problem is a tripped protection device, a broken or loose connection, or a faulty receptacle wiring setup.