I responded to a service call to diagnose a lighting circuit that the customer reported was intermittently tripping the circuit breaker. During a two-hour troubleshooting session, I was unable to recreate the issue, and the breaker did not trip at any point. The affected lighting circuit supplies the sunroom, dining room, kitchen, carport, and two exterior post lights. I inspected switches, pulling down light fixtures, and confirming there was no moisture intrusion in the exterior lights. No loose connections or visible faults were found. An amp clamp reading at the breaker showed no more than 2 amps with all lights turned on. The Square D Homeline dual-function breaker tested properly, and all connections at the breaker were tight. I advised the customer to contact me if the issue occurs again so I can continue troubleshooting.