As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT 4 HOURS AFTER TAKEOFF LEFT SIDE WINDOW HEAT AMBER OVERHEAT OCCURRED. QRH FOLLOWED. OVERHEAT CONDITION WOULD NOT RESET. PERFORMED WINDOW HEAT CONTROL UNIT BITE CHECK NO ACTIVE FAULTS FOUND. HISTORICAL FAULT LT SIDE WINDOW SENSOR SHOWN. CHANGED LT SIDE WINDOW HEAT COIL CORD AND OPS CHECKED PER AMM 30 41 00 710 801.