What is the most effective diagnostic approach to isolate bleed air faults in this f

[GeorgeJL]

I'm an A&P mechanic working at a regional airline, and we're seeing a recurring issue with false warnings on the bleed air system for a specific aircraft type in our fleet, leading to unnecessary delays and inspections. The troubleshooting manuals point to several possible sensors or valves. For other maintenance technicians who have dealt with intermittent bleed air faults, what has been your most effective diagnostic approach to isolate the root cause, and are there any common wear items or connector issues on these systems that tend to fail first and mimic more serious problems?