As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON RECALL CONT CAB ZONE TEMP LIGHT ILLUMINATES. EXTINGUISHES WITH RESET. NO TEMPERATURE FLUCTUATIONS. GROUNDED - YES. PERFORMED BITE CHECK, FOUND FLT DECK TRIM VALVE BAD. REMOVED AND REPLACED FLT DECK TRIM VALVE, REF AMM 21-61-21. OP CHECK GOOD.