As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT SIDE WINDOW OVERHEAT LIGHT CAME ON. QRH PROCEDURE CORRECTED PROBLEM, BUT AFTER APPROXIMATELY 10 MINUTES OVERHEAT LIGHT CAME BACK ON. MOVED SWITCH TO OFF AND LEFT OFF FOR REST OF FLIGHT. ACFT GROUNDED. ACP FIM TASK 30-41-801 SHOWS LT SIDE WINDOW SENSOR FAULT. SWAPPED TO SPARE SENSOR IAW MM 30-41-00-420-801.