As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECIRCULATION FAN FAILURE OF 1 OR MORE CABIN AIR RECIRCULATION FANS. STATUS MESSAGE 01-ACTIVE INITIAL CLIMB MODE DEPENDENT; LOWER RECIRCULATION FAN (LT) MOTOR DOES NOT FOLLOW COMMAND OR IS OVERHEATED. DB- CABIN TEMPERATURE CONTROLLER (R CHAN1) MSG-2124600 ACTIVE IC MODE. REPLACED LOWER LT RECIRC FAN IAW MM.