As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT FORWARD WINDOW OVERHEAT LIGHT ILLUMINATED WHEN SWITCH WAS ON. COMPLIED WITH QRH PROCEDURES. LIGHT STILL ILLUMINATED. ACFT GROUNDED. WHCU BITE IAW FIM 30-41 TASK 801, WINDOW SENSOR ILLUMINATED. ACCOMPLISHED FIM 30-41 TASK 812 SWITCHED TO SECONDARY SENSOR OPS CHECKED NORMAL.