What it is: A circuit uses wire too small for the amperage of the breaker protecting it.
Why it matters
Undersized conductors can overheat before the oversized breaker trips, creating a fire hazard.
Why it's common in Bloomington
Found in Bloomington homes where circuits were extended or breakers upsized during DIY remodels.
Signs to watch for
- 14-gauge wire on a 20-amp breaker
- warm wiring at junctions
- frequent nuisance issues on a circuit
What we check during the inspection
The inspector compares visible conductor sizes to breaker ratings where accessible.
How it's typically corrected
An electrician installs a correctly sized breaker or replaces the wire to match the load.
Concerned about undersized branch circuit wiring in a home you're buying or selling? Get a free instant quote and we'll evaluate it as part of a full inspection.