Rock the Gas Heat ESCO Exam 2026 – Fire Up Your Future in HVAC!

A GFCI circuit breaker, or a ground fault circuit interrupter, detects when current leaks to ground, which can be potentially dangerous. Current leaks to neutral may indicate a neutral-to-ground short circuit, which a GFCI circuit breaker is not meant to detect. Voltage spikes and current surges may be detected by other types of circuit breakers, but they are not the primary function of a GFCI circuit breaker.