As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED THAT UPON TAKEOFF, RECEIVED A BLEED 1 OVERHEAT MESSAGE. THE CREW RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE FAN AIR CONTROL THERMOSTAT. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.