As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD LEFT WINDOW HEAT OVERHEAT. ACFT GROUNDED. FOUND SENSOR FAULT ON THE LT FWD WINDOW HEAT CONTROL UNIT. ACCOMPLISHED FIM 30-41 TASK 812. REPOSITIONED THE SENSOR SWITCH TO THE SECONDARY POSITION. SENSOR FAULT EXTINGUISHED, OVERHEAT LIGHT EXTINGUISHED. OK FOR SERVICE.