As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, THE LT SIDE WINDOW OVERHEAT AMBER LIGHT ILLUMINATED. QRH PROCEDURE WAS ACCOMPLISHED. AFTER THE POWER TO THE WINDOW WAS OFF FOR 3 MINUTES - IT WAS TURNED BACK ON. THE AMBER LIGHT RE-ILLUMINATED AFTER 35 SECONDS. ACFT GROUNDED. VERIFIED FAULT, SWAP L2 WINDOW SENSOR TO SPARE SENSOR. REF FIM 30-41, TASK 811. WHCU VERIFIED NO FAULTS. WINDOW HEAT OPS NORMAL. GROUND VERIFICATION SUCCESSFUL.