As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START FWD WINDOW HEAT "OVERHEAT" LIGHT CAME ON. REFERRED TO QRH AND TURNED SWITCH OFF AND WAITED 2 MINUTES. PLACED SWITCH BACK ON AND OVERHEAT LIGHT CAME BACK ON. ACCOMPLISHED FIM 30 41 TASK 801. WINDOW SENSOR FAULT ILLUMINATED LAST SEVERAL LEGS. SELECTED ALT SENSOR ON S1079 WINDOW (R1 WINDOW) HEAT OP TEST GOOD PER MM 30 41 00. GROUND VERIFICATION SUCCESSFUL.