As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT SIDE WINDOW OVERHEAT ON CLIMB OUT. RAN QRH PROCEDURES, LIGHT EXTINGUISHED. GROUNDED - YES. VERIFIED LEFT SIDE WINDOW HEAT WORKING NORMAL. PERFORMED WHCU BITE REF B737-900 FIM 30-41 TASK 801, NO CURRENT FAULTS LOGGED BUT NOTED WINDOW SENSOR FAULT ON HISTORY FAULT.