As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WINDOW HEAT LT-SIDE AMBER LIGHT CAME ON IN FLIGHT. QRH ACCOMPLISHED OFF 5 MINS THEN ON AFTER 2 MINS AMBER LIGHT CAME ON. MOVED TO OFF REMAINDER OF FLIGHT. PERFORMED FIM 30-41-801. BITE TEST OK. FAULT HISTORY HAS WINDOW SENSOR FAULT. PERFORMED TASK 30-41-811 TO STEP F.2. SENSOR RESISTANCE OK. BECAUSE OF HISTORY REPLACED WINDOW HEAT CONTROL REF MM 30-41-11 AND L-2 WINDOW EXTENSION CORD PRECAUTIONARY.