As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN CONTROLLER ZONE TEMP ON RECALL MASTER CAUTION CLEARS. ACFT GROUNDED. PERFORMED BITE CHECK, FOUND FAULT CODE 21-51311. PERFORMED FIM 21-62 TASK 804 IAW FIM. R & R TEMP CONTROL MODULE REF AMM 21-61-15, OPS TEST NORMAL. GROUND VERIFICATION NORMAL.