As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT DECK TEMP CONTROL INOPERATIVE IN AUTO, CYCLED FROM FULL HOT TO FULL COLD. EICAS ACTIVATED FOR A FEW MINUTES. R & R THE FLIGHT DECK ZONE DUCT OVERHEAT RELAY K238 IAW AMM 21-61-00. OPS CHECKED NORMAL IAW SWPM 20-81-13, AND AMM 21-61-00.