As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB ZONE TEMP LIGHT ILLUMINATED ON MASTER CAUTION RECALL. LIGHT EXTINGUISHED ON MASTER CAUTION RESET. GROUNDED - YES. INTERROGATED BOTH PACK CONTROLLERS, NO FAULTS NOTED. DUE TO HISTORY REMOVED & REPLACED CONTROL CABIN TRIM AIR VALVE. OPS CHECKED GOOD & NO FAULTS NOTED IAW AMM 21-61-21.