As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON ANNUNCIATOR RECALL, CONT CAB ZONE TEMP ILLUMINATED. LIGHT EXTINGUISHES WHEN MASTER CAUTION SYSTEM IS RESET. GROUNDED - YES. PERFORMED PACK TEMP CONTROLLLER 1&2 BITE IAW B737-800 FIM 21-62 TASK 801. FOUND CONTROLLER 2 BIT, AND PREV "FLIGHT DECK TRIM VALVE" FAULT. NO FAULT ON VERIFY.