As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CAB ZONE TEMP ILLUMINATES ON RECALL & RESETS WITH MC RESET. GROUNDED - YES. ACCOMPLISHED BITE CK ON TEMP CONTROLLERS, FOUND FLT DECK TRIM VALVE FAULT, RESET FAULT. ACCOMPLISHED TEMP CONTROLLER OP CK NO FAULTS NOTED, REF B737-800 AMM 21-61-00-700-506-002 AND 21-61-00-700-807-002.