Troubleshooting Guide

1-Pole CAFCI circuit breaker
LED indicators
Last known
trip condition Troubleshooting1 2
Off Off Overcurrent
Ensure current on the circuits does not
exceed the current rating for the breaker.
On Off Arc fault
Check wiring for the parallel and series arc
faults. Check devices for series arc faults. Use
Intelli-Arc to assist and accelerate diagnosis.
On On Arc fault to ground
Check wiring, switches, and receptacles for
possible ground leakage. Use Intelli-Arc or
circuit tester to troubleshoot. Using safe
electrical practices, systematically identify
the source of the ground fault.
2-Pole CAFCI circuit breaker
LED indicators
Last known
trip condition Troubleshooting1 2 3
Off Off Off Overcurrent
Ensure current on the circuits does not
exceed the current rating for the breaker.
On Off Off Arc fault (leg A)
Check wiring for the parallel and series arc
faults. Check devices for series arc faults.
Use Intelli-Arc to assist and accelerate
diagnosis.
Off Off On Arc fault (leg B)
On On On Arc fault to ground
Check wiring, switches, and receptacles for
possible ground leakage. Use Intelli-Arc or
circuit tester to troubleshoot. Using safe
electrical practices, systematically identify
the source of the ground fault.