As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAX FLIGHT NR 2403 TO SUN: DIVERTED TO BOI. CREW WAS UNABLE TO GET DUCT TEMP OVER 25C. MAINTENANCE REPLACED PACK FLOW CONTROL SHUTOFF VALVE FILTER IAW Q400 MM 21-52-00. OPS CHECK GOOD IAW Q400 MM 21-61-00. AIRCRAFT RETURNED TO SERVICE.