Arrived on the jobsite and the customer stated that his blue dual-function breaker was randomly tripping. Performed a troubleshooting inspection since we previously replaced the panel and installed the breakers. I observed that the breaker was blinking six times, indicating a faulty breaker that needed replacement. Replaced the dual-function breaker controlling the dishwasher and disposal with a new TL Symbol Blue Dual-Function Breaker. The customer is 100% satisfied, and the circuit is now working properly.