No continuity means an open path — a broken wire, a blown fuse, or an open switch somewhere in the segment.
Stop and call a licensed electrician or emergency services now if there's smoke, sparks, a burning smell, heat, shock, or water near the problem. Otherwise it's safe to answer the questions below.
The likely readout
Most likely cause
OL / infinite — an open path: a broken conductor, a blown fuse, or a switch that's off
Ranked by fit to your answers
1
OL / infinite — an open path: a broken conductor, a blown fuse, or a switch that's off
85
SAFE NEXT CHECKAn open means a break: a blown fuse, a broken conductor, or an open switch. Confirm the switch position, then test each segment to localize the break.
Where to stop. Measuring at an accessible outlet or on a disconnected wire/fuse is homeowner-safe with a properly rated meter. Anything that requires probing energized wiring inside boxes or the panel is a licensed electrician's job. Note that digital meters can read phantom (ghost) voltage on a dead conductor — confirm a live/dead decision with a low-impedance meter or a solenoid tester, never a single high-impedance reading. This is general information, not a quote and not a substitute for a licensed electrician.
Try the safe next check above. If it doesn't resolve it, or would mean working on wiring or a panel, stop and call a licensed electrician — don't replace parts on a guess. Open the full tool to change any answer for your exact situation, or try a related check below.
source-governed · verified 2026-06-20
Sources
standard ANSI C84.1 — nominal voltage ranges (120 V service) · verified 2026-06-20
Electrical Fault Check provides general diagnostic information only. It is not professional advice, not a quote, and not a substitute for a licensed electrician. Do not work on live wiring. If you see smoke, sparks, burning smell, heat, shock, water exposure, or repeated tripping, stop using the circuit and contact a licensed electrician or emergency services as appropriate.