As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CONT CABIN ZONE TEMP ILLUMINATED AFTER ENG START. RAN QRH AND COMPLIED WITH INSTRUCTIONS ZONE LIGHT EXTINGUISHED AFTER MASTER CAUTION WAS RESET. TALKED TO MAINT, AND SAID GOOD TO PROCEED. GROUNDED - YES. BITE CHK NR 2 TEMP CONTROLLER, SHOWED FLT DECK TRIM VALVE FAULT. REMOVED AND REPLACED CONTROL CABIN TRIM VALVE REF AMM 21-61-21. BITE TEST AND LEAK CK GOOD.