As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT DECK CABIN TEMP SELECTOR WAS REPALCED DUE TO A CABIN TEMP RUN AWAY IN FLIGHT. DURING A BITE CHECK OF THE ZONE TEMP CONTROLLER, A TEMP SELECTOR FAULT WAS FLAGGED WHICH REQUIRED REPLACEMENT OF THE UNIT. AFTER REPLACEMENT, THE SYSTEM WAS CONFIRMED OPERATIONAL.